diff --git a/PROJECT_STATE.md b/PROJECT_STATE.md
index 74531eb..3def7b0 100644
--- a/PROJECT_STATE.md
+++ b/PROJECT_STATE.md
@@ -2296,3 +2296,21 @@ evidence yet."
   the full Unraid Compose suite: **203 passed, 1 warning**.
 - Exact next action: implement audited checkout/activation, maintenance capture and
   operations-manager user administration, then repeat the complete validation gate.
+
+## Complete daily operations cycle (2026-08-10)
+
+- Reserved bookings now have an audited checkout inspection. A safe inspection atomically
+  activates the booking and marks the vehicle rented; odometer regression, dirt, damage
+  or a technical warning blocks the booking and routes the vehicle to cleaning or
+  maintenance without an unsafe activation.
+- Operations Managers can register persisted maintenance evidence, advance service and
+  odometer values, explicitly release a vehicle only when no active rental or open
+  high-severity vehicle issue remains, and create/activate/deactivate operational users.
+  Self-deactivation and self-demotion are prevented. Rental employees receive 403 for
+  manager actions.
+- Added localized web workflows for checkout, maintenance/release and user access
+  administration. All actions use persisted API state and expose actionable errors.
+- Evidence: frontend lint and production build passed; ruff, mypy and diff check passed;
+  focused Unraid contracts **19 passed** and the full suite **208 passed, 1 warning**.
+- Exact next action: harden MCP per-client authorization and evidence completeness, then
+  replace inferred n8n status with explicit heartbeat/execution telemetry.
diff --git a/backend/app/api/routers/bookings.py b/backend/app/api/routers/bookings.py
index a89e7e3..49ed3c5 100644
--- a/backend/app/api/routers/bookings.py
+++ b/backend/app/api/routers/bookings.py
@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 import uuid
-from datetime import datetime
+from datetime import UTC, datetime
 
 from fastapi import APIRouter, Depends, Header, HTTPException, Query, Response
 from sqlalchemy import func, or_, select
@@ -10,12 +10,15 @@ from sqlalchemy.orm import Session
 from app.api.deps import get_current_user, get_db
 from app.models.booking import Booking
 from app.models.customer import Customer
+from app.models.inspection import Inspection
 from app.models.vehicle import Vehicle
 from app.schemas import (
     AvailableVehicleOut,
     BookingOut,
     BookingPageOut,
     CancelBookingRequest,
+    CheckoutBookingRequest,
+    CheckoutBookingResult,
     CreateBookingRequest,
     CurrentUser,
     NextBookingRisk,
@@ -154,6 +157,100 @@ def create_booking(
     return _to_out(booking, customer, vehicle)
 
 
+@router.post("/{public_ref}/checkout", response_model=CheckoutBookingResult)
+def checkout_booking(
+    public_ref: str,
+    body: CheckoutBookingRequest,
+    db: Session = Depends(get_db),
+    user: CurrentUser = Depends(get_current_user),
+) -> CheckoutBookingResult:
+    booking = db.scalar(
+        select(Booking).where(Booking.public_ref == public_ref).with_for_update()
+    )
+    if booking is None:
+        raise HTTPException(status_code=404, detail="Booking not found")
+    if booking.status != "reserved":
+        raise HTTPException(status_code=409, detail="Only a reserved booking can be checked out")
+    if not booking.requirements_complete:
+        raise HTTPException(status_code=409, detail="Booking requirements are incomplete")
+    vehicle = db.scalar(select(Vehicle).where(Vehicle.id == booking.vehicle_id).with_for_update())
+    if vehicle is None:
+        raise HTTPException(status_code=500, detail="Booking references a missing vehicle")
+    if not vehicle.active or vehicle.operational_status in {"maintenance", "blocked", "rented"}:
+        raise HTTPException(status_code=409, detail="Vehicle is not ready for checkout")
+    active_conflict = db.scalar(
+        select(Booking.id).where(
+            Booking.vehicle_id == vehicle.id,
+            Booking.status == "active",
+            Booking.id != booking.id,
+        )
+    )
+    if active_conflict is not None:
+        raise HTTPException(status_code=409, detail="Vehicle already has an active booking")
+
+    attention_reasons: list[str] = []
+    if body.start_odometer_km < vehicle.odometer_km:
+        attention_reasons.append("odometer_regression")
+    if not body.cleanliness_ok:
+        attention_reasons.append("cleanliness")
+    if body.damage_reported:
+        attention_reasons.append("damage")
+    if body.technical_warning:
+        attention_reasons.append("technical_warning")
+
+    inspection = Inspection(
+        public_ref=f"INSP-{uuid.uuid4().hex[:10].upper()}",
+        booking_id=booking.id,
+        vehicle_id=vehicle.id,
+        type="checkout",
+        fuel_level_percent=body.fuel_level_percent,
+        cleanliness_ok=body.cleanliness_ok,
+        damage_reported=body.damage_reported,
+        technical_warning=body.technical_warning,
+        notes=body.notes,
+        odometer_km=body.start_odometer_km,
+        completed_at=datetime.now(UTC),
+        completed_by=user.display_name,
+    )
+    db.add(inspection)
+    if attention_reasons:
+        booking.status = "blocked"
+        vehicle.operational_status = (
+            "maintenance" if body.damage_reported or body.technical_warning else "cleaning"
+        )
+    else:
+        booking.status = "active"
+        booking.start_odometer_km = body.start_odometer_km
+        vehicle.odometer_km = max(vehicle.odometer_km, body.start_odometer_km)
+        vehicle.operational_status = "rented"
+    vehicle.version += 1
+    db.flush()
+    record_audit_event(
+        db,
+        actor_type="user",
+        actor_label=user.display_name,
+        action="booking_checkout_recorded",
+        entity_type="booking",
+        entity_id=booking.id,
+        after={
+            "inspection_ref": inspection.public_ref,
+            "booking_status": booking.status,
+            "vehicle_status": vehicle.operational_status,
+            "attention_reasons": attention_reasons,
+        },
+    )
+    db.commit()
+    return CheckoutBookingResult(
+        booking_ref=booking.public_ref,
+        vehicle_ref=vehicle.public_ref,
+        inspection_ref=inspection.public_ref,
+        booking_status=booking.status,
+        resulting_vehicle_status=vehicle.operational_status,
+        activated=booking.status == "active",
+        attention_reasons=attention_reasons,
+    )
+
+
 @router.get("/availability", response_model=list[AvailableVehicleOut])
 def list_available_vehicles(
     starts_at: datetime,
diff --git a/backend/app/api/routers/users.py b/backend/app/api/routers/users.py
new file mode 100644
index 0000000..ae79717
--- /dev/null
+++ b/backend/app/api/routers/users.py
@@ -0,0 +1,100 @@
+import uuid
+
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+from app.api.deps import get_db, require_operations_manager
+from app.core.security import hash_password
+from app.models.user import User
+from app.schemas import CreateUserRequest, CurrentUser, UpdateUserRequest, UserOut
+from app.services.audit import record_audit_event
+
+router = APIRouter(prefix="/api/v1/users", tags=["users"])
+
+
+def _to_out(user: User) -> UserOut:
+    return UserOut(
+        public_ref=user.public_ref,
+        email=user.email,
+        display_name=user.display_name,
+        role=user.role,  # type: ignore[arg-type]
+        active=user.active,
+    )
+
+
+@router.get("", response_model=list[UserOut])
+def list_users(
+    db: Session = Depends(get_db),
+    _manager: CurrentUser = Depends(require_operations_manager),
+) -> list[UserOut]:
+    return [_to_out(user) for user in db.scalars(select(User).order_by(User.display_name)).all()]
+
+
+@router.post("", response_model=UserOut, status_code=201)
+def create_user(
+    body: CreateUserRequest,
+    db: Session = Depends(get_db),
+    manager: CurrentUser = Depends(require_operations_manager),
+) -> UserOut:
+    email = body.email.strip().lower()
+    if db.scalar(select(User.id).where(User.email == email)) is not None:
+        raise HTTPException(status_code=409, detail="A user with this email already exists")
+    user = User(
+        public_ref=f"USR-{uuid.uuid4().hex[:8].upper()}",
+        email=email,
+        password_hash=hash_password(body.password),
+        display_name=body.display_name.strip(),
+        role=body.role,
+        active=True,
+    )
+    db.add(user)
+    db.flush()
+    record_audit_event(
+        db,
+        actor_type="user",
+        actor_label=manager.display_name,
+        action="user_created",
+        entity_type="user",
+        entity_id=user.id,
+        after={"public_ref": user.public_ref, "role": user.role, "active": user.active},
+    )
+    db.commit()
+    return _to_out(user)
+
+
+@router.patch("/{public_ref}", response_model=UserOut)
+def update_user(
+    public_ref: str,
+    body: UpdateUserRequest,
+    db: Session = Depends(get_db),
+    manager: CurrentUser = Depends(require_operations_manager),
+) -> UserOut:
+    user = db.scalar(select(User).where(User.public_ref == public_ref).with_for_update())
+    if user is None:
+        raise HTTPException(status_code=404, detail="User not found")
+    if user.public_ref == manager.public_ref and body.active is False:
+        raise HTTPException(status_code=409, detail="You cannot deactivate your own account")
+    if user.public_ref == manager.public_ref and body.role not in (None, "operations_manager"):
+        raise HTTPException(status_code=409, detail="You cannot remove your own manager role")
+    before = {"display_name": user.display_name, "role": user.role, "active": user.active}
+    if body.display_name is not None:
+        user.display_name = body.display_name.strip()
+    if body.role is not None:
+        user.role = body.role
+    if body.active is not None:
+        user.active = body.active
+    if body.password is not None:
+        user.password_hash = hash_password(body.password)
+    record_audit_event(
+        db,
+        actor_type="user",
+        actor_label=manager.display_name,
+        action="user_updated",
+        entity_type="user",
+        entity_id=user.id,
+        before=before,
+        after={"display_name": user.display_name, "role": user.role, "active": user.active},
+    )
+    db.commit()
+    return _to_out(user)
diff --git a/backend/app/api/routers/vehicles.py b/backend/app/api/routers/vehicles.py
index d832852..535e3fc 100644
--- a/backend/app/api/routers/vehicles.py
+++ b/backend/app/api/routers/vehicles.py
@@ -1,10 +1,12 @@
 from __future__ import annotations
 
+import uuid
+
 from fastapi import APIRouter, Depends, HTTPException, Query
 from sqlalchemy import func, or_, select
 from sqlalchemy.orm import Session
 
-from app.api.deps import get_current_user, get_db
+from app.api.deps import get_current_user, get_db, require_operations_manager
 from app.models.booking import Booking
 from app.models.customer import Customer
 from app.models.data_quality import DataQualityIssue
@@ -13,14 +15,17 @@ from app.models.maintenance import MaintenanceRecord
 from app.models.vehicle import Vehicle
 from app.schemas import (
     BookingSummaryOut,
+    CreateMaintenanceRequest,
     CurrentUser,
     DataQualityIssueOut,
     InspectionOut,
     MaintenanceOut,
+    ReleaseVehicleRequest,
     VehicleDetailOut,
     VehicleOut,
     VehiclePageOut,
 )
+from app.services.audit import record_audit_event
 
 router = APIRouter(prefix="/api/v1/vehicles", tags=["vehicles"])
 
@@ -192,3 +197,104 @@ def get_vehicle(
             for q in issues
         ],
     )
+
+
+@router.post("/{public_ref}/maintenance", response_model=MaintenanceOut, status_code=201)
+def create_maintenance_record(
+    public_ref: str,
+    body: CreateMaintenanceRequest,
+    db: Session = Depends(get_db),
+    user: CurrentUser = Depends(require_operations_manager),
+) -> MaintenanceOut:
+    vehicle = db.scalar(select(Vehicle).where(Vehicle.public_ref == public_ref).with_for_update())
+    if vehicle is None:
+        raise HTTPException(status_code=404, detail="Vehicle not found")
+    record = MaintenanceRecord(
+        public_ref=f"MAINT-{uuid.uuid4().hex[:8].upper()}",
+        vehicle_id=vehicle.id,
+        occurred_at=body.occurred_at,
+        odometer_km=body.odometer_km,
+        category=body.category,
+        summary=body.summary.strip(),
+    )
+    db.add(record)
+    vehicle.odometer_km = max(vehicle.odometer_km, body.odometer_km)
+    if body.next_service_km is not None:
+        if body.next_service_km < vehicle.odometer_km:
+            raise HTTPException(status_code=422, detail="Next service must not be below odometer")
+        vehicle.next_service_km = body.next_service_km
+    if body.mark_maintenance:
+        vehicle.operational_status = "maintenance"
+    vehicle.version += 1
+    db.flush()
+    record_audit_event(
+        db,
+        actor_type="user",
+        actor_label=user.display_name,
+        action="maintenance_record_created",
+        entity_type="vehicle",
+        entity_id=vehicle.id,
+        after={"maintenance_ref": record.public_ref, "status": vehicle.operational_status},
+    )
+    db.commit()
+    return MaintenanceOut(
+        public_ref=record.public_ref,
+        occurred_at=record.occurred_at,
+        odometer_km=record.odometer_km,
+        category=record.category,
+        summary=record.summary,
+    )
+
+
+@router.post("/{public_ref}/release", response_model=VehicleOut)
+def release_vehicle(
+    public_ref: str,
+    body: ReleaseVehicleRequest,
+    db: Session = Depends(get_db),
+    user: CurrentUser = Depends(require_operations_manager),
+) -> VehicleOut:
+    vehicle = db.scalar(select(Vehicle).where(Vehicle.public_ref == public_ref).with_for_update())
+    if vehicle is None:
+        raise HTTPException(status_code=404, detail="Vehicle not found")
+    if vehicle.operational_status not in {"cleaning", "maintenance", "blocked"}:
+        raise HTTPException(status_code=409, detail="Vehicle does not require release")
+    active_booking = db.scalar(
+        select(Booking.id).where(Booking.vehicle_id == vehicle.id, Booking.status == "active")
+    )
+    open_high_issue = db.scalar(
+        select(DataQualityIssue.id).where(
+            DataQualityIssue.entity_type == "vehicle",
+            DataQualityIssue.entity_id == vehicle.id,
+            DataQualityIssue.status == "open",
+            DataQualityIssue.severity == "high",
+        )
+    )
+    if active_booking is not None or open_high_issue is not None:
+        raise HTTPException(status_code=409, detail="Vehicle still has a blocking condition")
+    before = {"status": vehicle.operational_status}
+    vehicle.operational_status = "available"
+    vehicle.version += 1
+    record_audit_event(
+        db,
+        actor_type="user",
+        actor_label=user.display_name,
+        action="vehicle_released",
+        entity_type="vehicle",
+        entity_id=vehicle.id,
+        before=before,
+        after={"status": "available", "reason": body.reason.strip()},
+    )
+    db.commit()
+    return VehicleOut(
+        public_ref=vehicle.public_ref,
+        make=vehicle.make,
+        model=vehicle.model,
+        model_year=vehicle.model_year,
+        registration_number=vehicle.registration_number,
+        location=vehicle.location,
+        operational_status=vehicle.operational_status,
+        odometer_km=vehicle.odometer_km,
+        next_service_km=vehicle.next_service_km,
+        active=vehicle.active,
+        attention=False,
+    )
diff --git a/backend/app/main.py b/backend/app/main.py
index 97caff3..e019834 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -18,6 +18,7 @@ from app.api.routers import (
     knowledge,
     mcp_integrations,
     search,
+    users,
     vehicles,
     workflows,
 )
@@ -100,3 +101,4 @@ app.include_router(knowledge.router)
 app.include_router(mcp_integrations.router)
 app.include_router(search.router)
 app.include_router(integration_status.router)
+app.include_router(users.router)
diff --git a/backend/app/schemas.py b/backend/app/schemas.py
index d4d6e69..00ff855 100644
--- a/backend/app/schemas.py
+++ b/backend/app/schemas.py
@@ -17,6 +17,28 @@ class PasswordLoginRequest(BaseModel):
     password: str = Field(min_length=8, max_length=256)
 
 
+class UserOut(BaseModel):
+    public_ref: str
+    email: str | None
+    display_name: str
+    role: Role
+    active: bool
+
+
+class CreateUserRequest(BaseModel):
+    email: str = Field(min_length=3, max_length=320)
+    display_name: str = Field(min_length=2, max_length=120)
+    role: Role
+    password: str = Field(min_length=8, max_length=256)
+
+
+class UpdateUserRequest(BaseModel):
+    display_name: str | None = Field(default=None, min_length=2, max_length=120)
+    role: Role | None = None
+    active: bool | None = None
+    password: str | None = Field(default=None, min_length=8, max_length=256)
+
+
 class CurrentUser(BaseModel):
     public_ref: str
     display_name: str
@@ -88,6 +110,25 @@ class CancelBookingRequest(BaseModel):
     reason: str = Field(min_length=3, max_length=500)
 
 
+class CheckoutBookingRequest(BaseModel):
+    start_odometer_km: Annotated[int, Field(ge=0)]
+    fuel_level_percent: Annotated[int, Field(ge=0, le=100)]
+    cleanliness_ok: bool
+    damage_reported: bool = False
+    technical_warning: bool = False
+    notes: str | None = Field(default=None, max_length=2000)
+
+
+class CheckoutBookingResult(BaseModel):
+    booking_ref: str
+    vehicle_ref: str
+    inspection_ref: str
+    booking_status: str
+    resulting_vehicle_status: str
+    activated: bool
+    attention_reasons: list[str]
+
+
 class BookingPageOut(BaseModel):
     items: list[BookingOut]
     page: int
@@ -158,6 +199,19 @@ class MaintenanceOut(BaseModel):
     summary: str
 
 
+class CreateMaintenanceRequest(BaseModel):
+    occurred_at: datetime
+    odometer_km: Annotated[int, Field(ge=0)]
+    category: Literal["periodic_service", "repair", "inspection", "tyres", "other"]
+    summary: str = Field(min_length=3, max_length=2000)
+    next_service_km: Annotated[int | None, Field(default=None, ge=0)]
+    mark_maintenance: bool = True
+
+
+class ReleaseVehicleRequest(BaseModel):
+    reason: str = Field(min_length=3, max_length=500)
+
+
 class DataQualityIssueOut(BaseModel):
     public_ref: str
     rule_type: str
diff --git a/backend/tests/test_bookings.py b/backend/tests/test_bookings.py
index c82f9f8..eed730c 100644
--- a/backend/tests/test_bookings.py
+++ b/backend/tests/test_bookings.py
@@ -133,6 +133,33 @@ def test_concurrent_bookings_only_reserve_vehicle_once():
     assert results.count(409) == 1
 
 
+def test_checkout_records_inspection_and_activates_safe_booking(ops_client):
+    window = {"starts_at": "2050-09-01T10:00:00Z", "ends_at": "2050-09-02T12:00:00Z"}
+    available = ops_client.get("/api/v1/bookings/availability", params=window).json()
+    vehicle_option = next(item for item in available if item["operational_status"] == "available")
+    vehicle = ops_client.get(f"/api/v1/vehicles/{vehicle_option['public_ref']}").json()
+    booking = ops_client.post(
+        "/api/v1/bookings",
+        json={"customer_ref": "CUS-0001", "vehicle_ref": vehicle["public_ref"], **window},
+    ).json()
+    response = ops_client.post(
+        f"/api/v1/bookings/{booking['public_ref']}/checkout",
+        json={
+            "start_odometer_km": vehicle["odometer_km"],
+            "fuel_level_percent": 95,
+            "cleanliness_ok": True,
+            "damage_reported": False,
+            "technical_warning": False,
+        },
+    )
+    assert response.status_code == 200
+    assert response.json()["activated"] is True
+    assert response.json()["booking_status"] == "active"
+    updated_vehicle = ops_client.get(f"/api/v1/vehicles/{vehicle['public_ref']}").json()
+    assert updated_vehicle["operational_status"] == "rented"
+    assert any(item["type"] == "checkout" for item in updated_vehicle["inspections"])
+
+
 def test_get_booking_detail(ops_client):
     response = ops_client.get("/api/v1/bookings/BK-DEMO-RETURN")
     assert response.status_code == 200
diff --git a/backend/tests/test_users.py b/backend/tests/test_users.py
new file mode 100644
index 0000000..fbdede0
--- /dev/null
+++ b/backend/tests/test_users.py
@@ -0,0 +1,25 @@
+def test_manager_can_create_and_update_user(ops_client):
+    created = ops_client.post(
+        "/api/v1/users",
+        json={
+            "email": "planner@example.test",
+            "display_name": "Fleet Planner",
+            "role": "rental_employee",
+            "password": "a-secure-demo-password",
+        },
+    )
+    assert created.status_code == 201
+    public_ref = created.json()["public_ref"]
+    assert created.json()["active"] is True
+    updated = ops_client.patch(
+        f"/api/v1/users/{public_ref}",
+        json={"display_name": "Senior Fleet Planner", "active": False},
+    )
+    assert updated.status_code == 200
+    assert updated.json()["display_name"] == "Senior Fleet Planner"
+    assert updated.json()["active"] is False
+    assert any(user["public_ref"] == public_ref for user in ops_client.get("/api/v1/users").json())
+
+
+def test_employee_cannot_manage_users(employee_client):
+    assert employee_client.get("/api/v1/users").status_code == 403
diff --git a/backend/tests/test_vehicles.py b/backend/tests/test_vehicles.py
index bf92105..dabf05c 100644
--- a/backend/tests/test_vehicles.py
+++ b/backend/tests/test_vehicles.py
@@ -37,3 +37,44 @@ def test_vehicle_detail_includes_related_records(ops_client):
 def test_vehicle_detail_404_for_unknown_ref(ops_client):
     response = ops_client.get("/api/v1/vehicles/MO-999")
     assert response.status_code == 404
+
+
+def test_manager_can_record_maintenance_and_release_vehicle(ops_client):
+    vehicle = ops_client.get("/api/v1/vehicles", params={"status": "available"}).json()[0]
+    response = ops_client.post(
+        f"/api/v1/vehicles/{vehicle['public_ref']}/maintenance",
+        json={
+            "occurred_at": "2051-01-15T09:00:00Z",
+            "odometer_km": vehicle["odometer_km"] + 100,
+            "category": "periodic_service",
+            "summary": "Periodic service completed and safety checks passed.",
+            "next_service_km": vehicle["odometer_km"] + 20100,
+            "mark_maintenance": True,
+        },
+    )
+    assert response.status_code == 201
+    detail = ops_client.get(f"/api/v1/vehicles/{vehicle['public_ref']}").json()
+    assert detail["operational_status"] == "maintenance"
+    assert any(
+        item["public_ref"] == response.json()["public_ref"]
+        for item in detail["maintenance"]
+    )
+    released = ops_client.post(
+        f"/api/v1/vehicles/{vehicle['public_ref']}/release",
+        json={"reason": "Service completed and vehicle inspected"},
+    )
+    assert released.status_code == 200
+    assert released.json()["operational_status"] == "available"
+
+
+def test_employee_cannot_record_maintenance(employee_client):
+    response = employee_client.post(
+        "/api/v1/vehicles/MO-001/maintenance",
+        json={
+            "occurred_at": "2051-01-15T09:00:00Z",
+            "odometer_km": 100,
+            "category": "repair",
+            "summary": "Unauthorised attempt",
+        },
+    )
+    assert response.status_code == 403
diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index 04fed09..ca85aeb 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -18,6 +18,7 @@ import { Knowledge } from "./pages/Knowledge";
 import { Audit } from "./pages/Audit";
 import { AboutDemo } from "./pages/AboutDemo";
 import { Scenarios } from "./pages/Scenarios";
+import { Users } from "./pages/Users";
 
 export function App() {
   return (
@@ -44,6 +45,7 @@ export function App() {
               <Route path="/automation" element={<Automation />} />
               <Route path="/knowledge" element={<Knowledge />} />
               <Route path="/audit" element={<Audit />} />
+              <Route path="/users" element={<Users />} />
               <Route path="/about" element={<AboutDemo />} />
               <Route path="/scenarios" element={<Scenarios />} />
             </Route>
diff --git a/frontend/src/api/client.ts b/frontend/src/api/client.ts
index 4543a34..757d274 100644
--- a/frontend/src/api/client.ts
+++ b/frontend/src/api/client.ts
@@ -51,4 +51,6 @@ export const api = {
   get: <T>(path: string) => request<T>(path),
   post: <T>(path: string, body?: unknown, headers?: Record<string, string>) =>
     request<T>(path, { method: "POST", body: body ? JSON.stringify(body) : undefined, headers }),
+  patch: <T>(path: string, body: unknown) =>
+    request<T>(path, { method: "PATCH", body: JSON.stringify(body) }),
 };
diff --git a/frontend/src/api/types.ts b/frontend/src/api/types.ts
index 8c8042d..b614093 100644
--- a/frontend/src/api/types.ts
+++ b/frontend/src/api/types.ts
@@ -66,6 +66,24 @@ export interface AvailableVehicle {
   operational_status: string;
 }
 
+export interface CheckoutBookingResult {
+  booking_ref: string;
+  vehicle_ref: string;
+  inspection_ref: string;
+  booking_status: string;
+  resulting_vehicle_status: string;
+  activated: boolean;
+  attention_reasons: string[];
+}
+
+export interface UserRecord {
+  public_ref: string;
+  email: string | null;
+  display_name: string;
+  role: Role;
+  active: boolean;
+}
+
 export interface Inspection {
   public_ref: string;
   booking_ref: string;
diff --git a/frontend/src/components/CheckoutForm.tsx b/frontend/src/components/CheckoutForm.tsx
new file mode 100644
index 0000000..c18df51
--- /dev/null
+++ b/frontend/src/components/CheckoutForm.tsx
@@ -0,0 +1,65 @@
+import { FormEvent, useEffect, useState } from "react";
+import { useTranslation } from "react-i18next";
+import { api } from "../api/client";
+import { describeApiError, type ApiErrorInfo } from "../api/errorMessages";
+import type { CheckoutBookingResult, VehicleDetail } from "../api/types";
+import { ApiErrorNotice, LoadingState, SectionHeading } from "./PageChrome";
+
+export function CheckoutForm({ bookingRef, vehicleRef, onRecorded }: { bookingRef: string; vehicleRef: string; onRecorded: (result: CheckoutBookingResult) => void }) {
+  const { t } = useTranslation(["bookings", "errors"]);
+  const [odometer, setOdometer] = useState<number | null>(null);
+  const [fuel, setFuel] = useState(100);
+  const [clean, setClean] = useState(true);
+  const [damage, setDamage] = useState(false);
+  const [warning, setWarning] = useState(false);
+  const [notes, setNotes] = useState("");
+  const [saving, setSaving] = useState(false);
+  const [error, setError] = useState<ApiErrorInfo | null>(null);
+
+  useEffect(() => {
+    api.get<VehicleDetail>(`/api/v1/vehicles/${vehicleRef}`)
+      .then((vehicle) => setOdometer(vehicle.odometer_km))
+      .catch((err) => setError(describeApiError(t, err)));
+  }, [t, vehicleRef]);
+
+  async function submit(event: FormEvent) {
+    event.preventDefault();
+    if (odometer === null) return;
+    setSaving(true);
+    setError(null);
+    try {
+      const result = await api.post<CheckoutBookingResult>(`/api/v1/bookings/${bookingRef}/checkout`, {
+        start_odometer_km: odometer,
+        fuel_level_percent: fuel,
+        cleanliness_ok: clean,
+        damage_reported: damage,
+        technical_warning: warning,
+        notes: notes || null,
+      });
+      onRecorded(result);
+    } catch (err) {
+      setError(describeApiError(t, err, "bookings:checkout.failed"));
+    } finally {
+      setSaving(false);
+    }
+  }
+
+  if (odometer === null && !error) return <LoadingState label={t("checkout.preparing")} />;
+  return <form className="return-form record-surface" onSubmit={submit}>
+    <SectionHeading title={t("checkout.title")} description={t("checkout.description")} />
+    <div className="return-capture">
+      <ApiErrorNotice error={error} />
+      <div className="form-grid">
+        <label>{t("checkout.odometer")}<input type="number" min={0} required value={odometer ?? ""} onChange={(event) => setOdometer(Number(event.target.value))} /></label>
+        <label>{t("checkout.fuel")}<input type="number" min={0} max={100} required value={fuel} onChange={(event) => setFuel(Number(event.target.value))} /></label>
+      </div>
+      <fieldset className="condition-fieldset"><legend>{t("checkout.condition")}</legend>
+        <label className="check-card"><input type="checkbox" checked={clean} onChange={(event) => setClean(event.target.checked)} /> {t("checkout.clean")}</label>
+        <label className="check-card"><input type="checkbox" checked={damage} onChange={(event) => setDamage(event.target.checked)} /> {t("checkout.damage")}</label>
+        <label className="check-card"><input type="checkbox" checked={warning} onChange={(event) => setWarning(event.target.checked)} /> {t("checkout.warning")}</label>
+      </fieldset>
+      <label>{t("checkout.notes")}<textarea maxLength={2000} value={notes} onChange={(event) => setNotes(event.target.value)} /></label>
+    </div>
+    <div className="form-actions"><button type="submit" className="button button-primary" disabled={saving || odometer === null}>{saving ? t("checkout.saving") : t("checkout.submit")}</button></div>
+  </form>;
+}
diff --git a/frontend/src/components/Layout.tsx b/frontend/src/components/Layout.tsx
index 3bba590..36fb32d 100644
--- a/frontend/src/components/Layout.tsx
+++ b/frontend/src/components/Layout.tsx
@@ -69,6 +69,7 @@ const NAV_GROUPS: Array<{ labelKey: string; items: NavItem[] }> = [
       { to: "/knowledge", labelKey: "items.knowledge", icon: "knowledge" },
       { to: "/automation", labelKey: "items.integrations", icon: "integrations", roles: ["operations_manager"] },
       { to: "/audit", labelKey: "items.audit", icon: "audit", roles: ["operations_manager"] },
+      { to: "/users", labelKey: "items.users", icon: "activity", roles: ["operations_manager"] },
     ],
   },
 ];
diff --git a/frontend/src/components/VehicleMaintenanceActions.tsx b/frontend/src/components/VehicleMaintenanceActions.tsx
new file mode 100644
index 0000000..5d93613
--- /dev/null
+++ b/frontend/src/components/VehicleMaintenanceActions.tsx
@@ -0,0 +1,56 @@
+import { FormEvent, useState } from "react";
+import { useTranslation } from "react-i18next";
+import { api } from "../api/client";
+import { describeApiError, type ApiErrorInfo } from "../api/errorMessages";
+import type { MaintenanceRecord, VehicleDetail } from "../api/types";
+import { ApiErrorNotice } from "./PageChrome";
+
+export function VehicleMaintenanceActions({ vehicle, onSaved }: { vehicle: VehicleDetail; onSaved: () => void }) {
+  const { t } = useTranslation(["fleet", "errors"]);
+  const [showRecord, setShowRecord] = useState(false);
+  const [occurredAt, setOccurredAt] = useState(() => new Date().toISOString().slice(0, 10));
+  const [odometer, setOdometer] = useState(vehicle.odometer_km);
+  const [category, setCategory] = useState("periodic_service");
+  const [summary, setSummary] = useState("");
+  const [nextService, setNextService] = useState(vehicle.next_service_km);
+  const [releaseReason, setReleaseReason] = useState("");
+  const [saving, setSaving] = useState(false);
+  const [error, setError] = useState<ApiErrorInfo | null>(null);
+
+  async function recordMaintenance(event: FormEvent) {
+    event.preventDefault(); setSaving(true); setError(null);
+    try {
+      await api.post<MaintenanceRecord>(`/api/v1/vehicles/${vehicle.public_ref}/maintenance`, {
+        occurred_at: new Date(`${occurredAt}T12:00:00`).toISOString(), odometer_km: odometer,
+        category, summary, next_service_km: nextService, mark_maintenance: true,
+      });
+      setShowRecord(false); setSummary(""); onSaved();
+    } catch (err) { setError(describeApiError(t, err, "fleet:maintenance.failed")); }
+    finally { setSaving(false); }
+  }
+
+  async function release(event: FormEvent) {
+    event.preventDefault(); setSaving(true); setError(null);
+    try {
+      await api.post(`/api/v1/vehicles/${vehicle.public_ref}/release`, { reason: releaseReason });
+      setReleaseReason(""); onSaved();
+    } catch (err) { setError(describeApiError(t, err, "fleet:maintenance.releaseFailed")); }
+    finally { setSaving(false); }
+  }
+
+  return <section className="record-surface maintenance-actions">
+    <div className="section-heading"><div><h2>{t("maintenance.actionsTitle")}</h2><p>{t("maintenance.actionsDescription")}</p></div>{!showRecord && <button type="button" className="button button-secondary" onClick={() => setShowRecord(true)}>{t("maintenance.add")}</button>}</div>
+    <ApiErrorNotice error={error} />
+    {showRecord && <form onSubmit={recordMaintenance}>
+      <div className="form-grid">
+        <label>{t("maintenance.date")}<input type="date" required value={occurredAt} onChange={(event) => setOccurredAt(event.target.value)} /></label>
+        <label>{t("maintenance.odometer")}<input type="number" min={vehicle.odometer_km} required value={odometer} onChange={(event) => setOdometer(Number(event.target.value))} /></label>
+        <label>{t("maintenance.category")}<select value={category} onChange={(event) => setCategory(event.target.value)}>{["periodic_service", "repair", "inspection", "tyres", "other"].map((value) => <option value={value} key={value}>{t(`detail.maintenanceCategories.${value}`, { defaultValue: value })}</option>)}</select></label>
+        <label>{t("maintenance.nextService")}<input type="number" min={odometer} required value={nextService} onChange={(event) => setNextService(Number(event.target.value))} /></label>
+      </div>
+      <label>{t("maintenance.summary")}<textarea required minLength={3} maxLength={2000} value={summary} onChange={(event) => setSummary(event.target.value)} /></label>
+      <div className="form-actions"><button type="button" className="button button-secondary" onClick={() => setShowRecord(false)}>{t("maintenance.cancel")}</button><button className="button button-primary" disabled={saving}>{saving ? t("maintenance.saving") : t("maintenance.save")}</button></div>
+    </form>}
+    {["cleaning", "maintenance", "blocked"].includes(vehicle.operational_status) && <form className="release-form" onSubmit={release}><label>{t("maintenance.releaseReason")}<input required minLength={3} maxLength={500} value={releaseReason} onChange={(event) => setReleaseReason(event.target.value)} placeholder={t("maintenance.releasePlaceholder")} /></label><button className="button button-primary" disabled={saving || releaseReason.trim().length < 3}>{t("maintenance.release")}</button></form>}
+  </section>;
+}
diff --git a/frontend/src/i18n/config.ts b/frontend/src/i18n/config.ts
index 56a5de2..f06a606 100644
--- a/frontend/src/i18n/config.ts
+++ b/frontend/src/i18n/config.ts
@@ -15,6 +15,7 @@ import auditNl from "./locales/nl-BE/audit.json";
 import demoNl from "./locales/nl-BE/demo.json";
 import errorsNl from "./locales/nl-BE/errors.json";
 import accessibilityNl from "./locales/nl-BE/accessibility.json";
+import operationsNl from "./locales/nl-BE/operations.json";
 
 import commonEn from "./locales/en-GB/common.json";
 import authEn from "./locales/en-GB/auth.json";
@@ -30,6 +31,7 @@ import auditEn from "./locales/en-GB/audit.json";
 import demoEn from "./locales/en-GB/demo.json";
 import errorsEn from "./locales/en-GB/errors.json";
 import accessibilityEn from "./locales/en-GB/accessibility.json";
+import operationsEn from "./locales/en-GB/operations.json";
 
 import commonFr from "./locales/fr-BE/common.json";
 import authFr from "./locales/fr-BE/auth.json";
@@ -45,6 +47,7 @@ import auditFr from "./locales/fr-BE/audit.json";
 import demoFr from "./locales/fr-BE/demo.json";
 import errorsFr from "./locales/fr-BE/errors.json";
 import accessibilityFr from "./locales/fr-BE/accessibility.json";
+import operationsFr from "./locales/fr-BE/operations.json";
 
 export const SUPPORTED_LANGUAGES = ["nl-BE", "en-GB", "fr-BE"] as const;
 export type SupportedLanguage = (typeof SUPPORTED_LANGUAGES)[number];
@@ -66,6 +69,7 @@ export const NAMESPACES = [
   "demo",
   "errors",
   "accessibility",
+  "operations",
 ] as const;
 
 function readStoredLanguage(): SupportedLanguage {
@@ -117,6 +121,7 @@ void i18n
         demo: demoNl,
         errors: errorsNl,
         accessibility: accessibilityNl,
+        operations: operationsNl,
       },
       "en-GB": {
         common: commonEn,
@@ -133,6 +138,7 @@ void i18n
         demo: demoEn,
         errors: errorsEn,
         accessibility: accessibilityEn,
+        operations: operationsEn,
       },
       "fr-BE": {
         common: commonFr,
@@ -149,6 +155,7 @@ void i18n
         demo: demoFr,
         errors: errorsFr,
         accessibility: accessibilityFr,
+        operations: operationsFr,
       },
     },
   });
diff --git a/frontend/src/i18n/locales/en-GB/bookings.json b/frontend/src/i18n/locales/en-GB/bookings.json
index 34298b3..20ba2d5 100644
--- a/frontend/src/i18n/locales/en-GB/bookings.json
+++ b/frontend/src/i18n/locales/en-GB/bookings.json
@@ -57,6 +57,25 @@
     "cancelled": "cancelled",
     "blocked": "blocked"
   },
+  "checkout": {
+    "title": "Check out vehicle",
+    "description": "Record departure condition. Any exception automatically blocks the rental for follow-up.",
+    "preparing": "Preparing departure inspection…",
+    "odometer": "Start odometer",
+    "fuel": "Fuel level (%)",
+    "condition": "Departure condition",
+    "clean": "Vehicle is clean",
+    "damage": "Damage found",
+    "warning": "Technical warning",
+    "notes": "Notes",
+    "submit": "Record inspection and start rental",
+    "saving": "Recording checkout…",
+    "failed": "The departure inspection could not be recorded.",
+    "activatedTitle": "Rental started",
+    "activatedDetail": "Departure inspection {{inspection}} was saved and the vehicle is now rented.",
+    "blockedTitle": "Rental blocked",
+    "blockedDetail": "Departure inspection {{inspection}} contains an exception. The vehicle was safely removed from service."
+  },
   "detail": {
     "backLink": "Booking ledger",
     "eyebrow": "Bookings / Rental record",
diff --git a/frontend/src/i18n/locales/en-GB/fleet.json b/frontend/src/i18n/locales/en-GB/fleet.json
index 6a5b865..1ea0b90 100644
--- a/frontend/src/i18n/locales/en-GB/fleet.json
+++ b/frontend/src/i18n/locales/en-GB/fleet.json
@@ -70,7 +70,11 @@
     },
     "maintenanceCategories": {
       "periodic_service": "Periodic service",
-      "repair": "Repair"
+      "repair": "Repair",
+      "inspection": "Technical inspection",
+      "tyres": "Tyres",
+      "other": "Other"
     }
-  }
+  },
+  "maintenance": { "actionsTitle": "Maintenance actions", "actionsDescription": "Record completed work or release a safe vehicle back into service.", "add": "Record maintenance", "date": "Date", "odometer": "Odometer", "category": "Category", "nextService": "Next service (km)", "summary": "Work completed", "cancel": "Cancel", "save": "Save maintenance", "saving": "Saving…", "failed": "Maintenance could not be saved.", "releaseReason": "Release reason", "releasePlaceholder": "Which check confirms the vehicle is safe for service?", "release": "Release vehicle", "releaseFailed": "The vehicle cannot be released yet." }
 }
diff --git a/frontend/src/i18n/locales/en-GB/navigation.json b/frontend/src/i18n/locales/en-GB/navigation.json
index f479b28..af46cd6 100644
--- a/frontend/src/i18n/locales/en-GB/navigation.json
+++ b/frontend/src/i18n/locales/en-GB/navigation.json
@@ -41,7 +41,8 @@
     "quality": "Quality workbench",
     "knowledge": "Procedure assistant",
     "integrations": "Automation and integration status",
-    "audit": "Audit history"
+    "audit": "Audit history",
+    "users": "Users"
   },
   "switchRole": "Switch role",
   "switchRoleTitle": "Switch demo role",
diff --git a/frontend/src/i18n/locales/en-GB/operations.json b/frontend/src/i18n/locales/en-GB/operations.json
new file mode 100644
index 0000000..a4f0130
--- /dev/null
+++ b/frontend/src/i18n/locales/en-GB/operations.json
@@ -0,0 +1,4 @@
+{
+  "users": { "eyebrow": "Administration / Access", "title": "Users", "description": "Manage operational access and roles. Every change is audited.", "addTitle": "Add user", "name": "Name", "email": "Email", "role": "Role", "password": "Temporary password", "status": "Status", "action": "Action", "add": "Add user", "saving": "Saving…", "loading": "Loading users…", "active": "active", "inactive": "inactive", "activate": "Activate", "deactivate": "Deactivate", "createFailed": "The user could not be created.", "updateFailed": "The user could not be updated." },
+  "roles": { "operations_manager": "Operations Manager", "rental_employee": "Rental employee" }
+}
diff --git a/frontend/src/i18n/locales/fr-BE/bookings.json b/frontend/src/i18n/locales/fr-BE/bookings.json
index 76a0e66..77a896d 100644
--- a/frontend/src/i18n/locales/fr-BE/bookings.json
+++ b/frontend/src/i18n/locales/fr-BE/bookings.json
@@ -57,6 +57,25 @@
     "cancelled": "annulé",
     "blocked": "bloqué"
   },
+  "checkout": {
+    "title": "Remettre le véhicule",
+    "description": "Enregistrez l’état de départ. Toute anomalie bloque automatiquement la location pour suivi.",
+    "preparing": "Préparation de l’inspection de départ…",
+    "odometer": "Kilométrage de départ",
+    "fuel": "Niveau de carburant (%)",
+    "condition": "État au départ",
+    "clean": "Le véhicule est propre",
+    "damage": "Dommage constaté",
+    "warning": "Alerte technique",
+    "notes": "Notes",
+    "submit": "Enregistrer l’inspection et démarrer la location",
+    "saving": "Enregistrement du départ…",
+    "failed": "L’inspection de départ n’a pas pu être enregistrée.",
+    "activatedTitle": "Location démarrée",
+    "activatedDetail": "L’inspection {{inspection}} est enregistrée et le véhicule est loué.",
+    "blockedTitle": "Location bloquée",
+    "blockedDetail": "L’inspection {{inspection}} contient une anomalie. Le véhicule a été retiré du service en toute sécurité."
+  },
   "detail": {
     "backLink": "Registre des réservations",
     "eyebrow": "Réservations / Fiche de location",
diff --git a/frontend/src/i18n/locales/fr-BE/fleet.json b/frontend/src/i18n/locales/fr-BE/fleet.json
index 44819bd..ba5ae12 100644
--- a/frontend/src/i18n/locales/fr-BE/fleet.json
+++ b/frontend/src/i18n/locales/fr-BE/fleet.json
@@ -70,7 +70,11 @@
     },
     "maintenanceCategories": {
       "periodic_service": "Entretien périodique",
-      "repair": "Réparation"
+      "repair": "Réparation",
+      "inspection": "Contrôle technique",
+      "tyres": "Pneus",
+      "other": "Autre"
     }
-  }
+  },
+  "maintenance": { "actionsTitle": "Actions d’entretien", "actionsDescription": "Enregistrez les travaux effectués ou remettez un véhicule sûr en service.", "add": "Enregistrer un entretien", "date": "Date", "odometer": "Kilométrage", "category": "Catégorie", "nextService": "Prochain entretien (km)", "summary": "Travaux effectués", "cancel": "Annuler", "save": "Enregistrer", "saving": "Enregistrement…", "failed": "L’entretien n’a pas pu être enregistré.", "releaseReason": "Motif de remise en service", "releasePlaceholder": "Quel contrôle confirme que le véhicule peut être remis en service ?", "release": "Remettre en service", "releaseFailed": "Le véhicule ne peut pas encore être remis en service." }
 }
diff --git a/frontend/src/i18n/locales/fr-BE/navigation.json b/frontend/src/i18n/locales/fr-BE/navigation.json
index ff1d92b..a819f29 100644
--- a/frontend/src/i18n/locales/fr-BE/navigation.json
+++ b/frontend/src/i18n/locales/fr-BE/navigation.json
@@ -41,7 +41,8 @@
     "quality": "Atelier qualité",
     "knowledge": "Assistant de procédures",
     "integrations": "Statut d'automatisation et d'intégration",
-    "audit": "Historique d'audit"
+    "audit": "Historique d’audit",
+    "users": "Utilisateurs"
   },
   "switchRole": "Changer de rôle",
   "switchRoleTitle": "Changer de rôle de démo",
diff --git a/frontend/src/i18n/locales/fr-BE/operations.json b/frontend/src/i18n/locales/fr-BE/operations.json
new file mode 100644
index 0000000..330934a
--- /dev/null
+++ b/frontend/src/i18n/locales/fr-BE/operations.json
@@ -0,0 +1,4 @@
+{
+  "users": { "eyebrow": "Administration / Accès", "title": "Utilisateurs", "description": "Gérez les accès opérationnels et les rôles. Chaque modification est auditée.", "addTitle": "Ajouter un utilisateur", "name": "Nom", "email": "E-mail", "role": "Rôle", "password": "Mot de passe temporaire", "status": "Statut", "action": "Action", "add": "Ajouter", "saving": "Enregistrement…", "loading": "Chargement des utilisateurs…", "active": "actif", "inactive": "inactif", "activate": "Activer", "deactivate": "Désactiver", "createFailed": "L'utilisateur n'a pas pu être créé.", "updateFailed": "L'utilisateur n'a pas pu être mis à jour." },
+  "roles": { "operations_manager": "Operations Manager", "rental_employee": "Employé de location" }
+}
diff --git a/frontend/src/i18n/locales/nl-BE/bookings.json b/frontend/src/i18n/locales/nl-BE/bookings.json
index 0bc1cb4..512ead7 100644
--- a/frontend/src/i18n/locales/nl-BE/bookings.json
+++ b/frontend/src/i18n/locales/nl-BE/bookings.json
@@ -57,6 +57,25 @@
     "cancelled": "geannuleerd",
     "blocked": "geblokkeerd"
   },
+  "checkout": {
+    "title": "Voertuig uitchecken",
+    "description": "Leg de vertrekstaat vast. Een afwijking blokkeert de huur automatisch voor opvolging.",
+    "preparing": "Vertrekinspectie voorbereiden…",
+    "odometer": "Startkilometerstand",
+    "fuel": "Brandstofniveau (%)",
+    "condition": "Vertrekstaat",
+    "clean": "Voertuig is schoon",
+    "damage": "Schade vastgesteld",
+    "warning": "Technische melding",
+    "notes": "Notities",
+    "submit": "Inspectie vastleggen en huur starten",
+    "saving": "Vertrek vastleggen…",
+    "failed": "De vertrekinspectie kon niet worden vastgelegd.",
+    "activatedTitle": "Huur is gestart",
+    "activatedDetail": "Vertrekinspectie {{inspection}} is opgeslagen en het voertuig staat op verhuurd.",
+    "blockedTitle": "Huur is geblokkeerd",
+    "blockedDetail": "Vertrekinspectie {{inspection}} bevat een afwijking. Het voertuig is veilig uit inzet genomen."
+  },
   "detail": {
     "backLink": "Boekingsoverzicht",
     "eyebrow": "Boekingen / Huurrecord",
diff --git a/frontend/src/i18n/locales/nl-BE/fleet.json b/frontend/src/i18n/locales/nl-BE/fleet.json
index 389ea4b..7b74b15 100644
--- a/frontend/src/i18n/locales/nl-BE/fleet.json
+++ b/frontend/src/i18n/locales/nl-BE/fleet.json
@@ -70,7 +70,11 @@
     },
     "maintenanceCategories": {
       "periodic_service": "Periodiek onderhoud",
-      "repair": "Herstelling"
+      "repair": "Herstelling",
+      "inspection": "Technische inspectie",
+      "tyres": "Banden",
+      "other": "Overig"
     }
-  }
+  },
+  "maintenance": { "actionsTitle": "Onderhoudsacties", "actionsDescription": "Registreer uitgevoerd werk of geef een veilig voertuig opnieuw vrij.", "add": "Onderhoud registreren", "date": "Datum", "odometer": "Kilometerstand", "category": "Categorie", "nextService": "Volgend onderhoud (km)", "summary": "Uitgevoerd werk", "cancel": "Annuleren", "save": "Onderhoud opslaan", "saving": "Opslaan…", "failed": "Het onderhoud kon niet worden opgeslagen.", "releaseReason": "Reden voor vrijgave", "releasePlaceholder": "Welke controle bevestigt dat het voertuig veilig inzetbaar is?", "release": "Voertuig vrijgeven", "releaseFailed": "Het voertuig kan nog niet worden vrijgegeven." }
 }
diff --git a/frontend/src/i18n/locales/nl-BE/navigation.json b/frontend/src/i18n/locales/nl-BE/navigation.json
index 2c29003..971868b 100644
--- a/frontend/src/i18n/locales/nl-BE/navigation.json
+++ b/frontend/src/i18n/locales/nl-BE/navigation.json
@@ -11,7 +11,8 @@
     "quality": "Datakwaliteit",
     "knowledge": "Kennis",
     "integrations": "Integraties",
-    "audit": "Auditgeschiedenis"
+    "audit": "Auditgeschiedenis",
+    "users": "Gebruikers"
   },
   "primaryNavLabel": "Hoofdnavigatie",
   "mobileNavLabel": "Mobiele navigatie",
diff --git a/frontend/src/i18n/locales/nl-BE/operations.json b/frontend/src/i18n/locales/nl-BE/operations.json
new file mode 100644
index 0000000..b31eb41
--- /dev/null
+++ b/frontend/src/i18n/locales/nl-BE/operations.json
@@ -0,0 +1,4 @@
+{
+  "users": { "eyebrow": "Beheer / Toegang", "title": "Gebruikers", "description": "Beheer operationele toegang en rollen. Elke wijziging wordt geaudit.", "addTitle": "Gebruiker toevoegen", "name": "Naam", "email": "E-mail", "role": "Rol", "password": "Tijdelijk wachtwoord", "status": "Status", "action": "Actie", "add": "Gebruiker toevoegen", "saving": "Opslaan…", "loading": "Gebruikers laden…", "active": "actief", "inactive": "inactief", "activate": "Activeren", "deactivate": "Deactiveren", "createFailed": "De gebruiker kon niet worden aangemaakt.", "updateFailed": "De gebruiker kon niet worden bijgewerkt." },
+  "roles": { "operations_manager": "Operations Manager", "rental_employee": "Verhuurmedewerker" }
+}
diff --git a/frontend/src/pages/BookingDetail.tsx b/frontend/src/pages/BookingDetail.tsx
index 538cd9d..3ff139e 100644
--- a/frontend/src/pages/BookingDetail.tsx
+++ b/frontend/src/pages/BookingDetail.tsx
@@ -2,7 +2,7 @@ import { FormEvent, useCallback, useEffect, useState } from "react";
 import { Link, useParams } from "react-router-dom";
 import { useTranslation } from "react-i18next";
 import { api } from "../api/client";
-import type { Booking, RegisterReturnResult, VehicleDetail } from "../api/types";
+import type { Booking, CheckoutBookingResult, RegisterReturnResult, VehicleDetail } from "../api/types";
 import { useDemoManifest } from "../context/DemoManifestContext";
 import { useLocaleFormat } from "../i18n/format";
 import { StatusBadge } from "../components/Badge";
@@ -12,6 +12,7 @@ import { ErrorState, LoadingState, PageHeader } from "../components/PageChrome";
 import { PRODUCT_NAME } from "../product";
 import { describeApiError, type ApiErrorInfo } from "../api/errorMessages";
 import { ApiErrorNotice } from "../components/PageChrome";
+import { CheckoutForm } from "../components/CheckoutForm";
 
 export function BookingDetail() {
   const { t } = useTranslation(["bookings", "returns", "errors"]);
@@ -25,6 +26,7 @@ export function BookingDetail() {
   const [cancelReason, setCancelReason] = useState("");
   const [cancelling, setCancelling] = useState(false);
   const [actionError, setActionError] = useState<ApiErrorInfo | null>(null);
+  const [checkoutResult, setCheckoutResult] = useState<CheckoutBookingResult | null>(null);
 
   const load = useCallback(() => {
     if (!publicRef) return;
@@ -77,6 +79,11 @@ export function BookingDetail() {
     }
   }
 
+  function handleCheckout(result: CheckoutBookingResult) {
+    setCheckoutResult(result);
+    load();
+  }
+
   if (error) return <ErrorState message={error} />;
   if (!booking) return <LoadingState label={t("detail.loading")} />;
 
@@ -101,6 +108,9 @@ export function BookingDetail() {
         <div className="form-actions"><button className="button button-danger" type="submit" disabled={cancelling || cancelReason.trim().length < 3}>{cancelling ? t("detail.cancelling") : t("detail.confirmCancel")}</button></div>
       </form>}
 
+      {checkoutResult && <section className={`record-surface checkout-result ${checkoutResult.activated ? "success" : "warning"}`} role="status"><h2>{t(checkoutResult.activated ? "checkout.activatedTitle" : "checkout.blockedTitle")}</h2><p>{t(checkoutResult.activated ? "checkout.activatedDetail" : "checkout.blockedDetail", { inspection: checkoutResult.inspection_ref })}</p></section>}
+      {!checkoutResult && booking.status === "reserved" && <CheckoutForm bookingRef={booking.public_ref} vehicleRef={booking.vehicle_ref} onRecorded={handleCheckout} />}
+
       {isReturnAnomalyScenario && !returnResult && canonicalOdometerKm !== null && (
         <section className="record-surface scenario-callout" aria-label={t("returns:scenario.ariaLabel")}>
           <Icon name="spark" />
diff --git a/frontend/src/pages/Users.tsx b/frontend/src/pages/Users.tsx
new file mode 100644
index 0000000..0712597
--- /dev/null
+++ b/frontend/src/pages/Users.tsx
@@ -0,0 +1,52 @@
+import { FormEvent, useCallback, useEffect, useState } from "react";
+import { useTranslation } from "react-i18next";
+import { api } from "../api/client";
+import { describeApiError, type ApiErrorInfo } from "../api/errorMessages";
+import type { Role, UserRecord } from "../api/types";
+import { useAuth } from "../context/AuthContext";
+import { ApiErrorNotice, LoadingState, PageHeader } from "../components/PageChrome";
+
+export function Users() {
+  const { t } = useTranslation(["operations", "errors"]);
+  const { user: currentUser } = useAuth();
+  const [users, setUsers] = useState<UserRecord[] | null>(null);
+  const [displayName, setDisplayName] = useState("");
+  const [email, setEmail] = useState("");
+  const [password, setPassword] = useState("");
+  const [role, setRole] = useState<Role>("rental_employee");
+  const [saving, setSaving] = useState(false);
+  const [error, setError] = useState<ApiErrorInfo | null>(null);
+
+  const load = useCallback(() => {
+    api.get<UserRecord[]>("/api/v1/users").then(setUsers).catch((err) => setError(describeApiError(t, err)));
+  }, [t]);
+  useEffect(load, [load]);
+
+  async function create(event: FormEvent) {
+    event.preventDefault(); setSaving(true); setError(null);
+    try {
+      await api.post<UserRecord>("/api/v1/users", { email, display_name: displayName, password, role });
+      setDisplayName(""); setEmail(""); setPassword(""); setRole("rental_employee"); load();
+    } catch (err) { setError(describeApiError(t, err, "operations:users.createFailed")); }
+    finally { setSaving(false); }
+  }
+
+  async function toggleActive(record: UserRecord) {
+    setError(null);
+    try { await api.patch(`/api/v1/users/${record.public_ref}`, { active: !record.active }); load(); }
+    catch (err) { setError(describeApiError(t, err, "operations:users.updateFailed")); }
+  }
+
+  return <div className="page">
+    <PageHeader eyebrow={t("users.eyebrow")} title={t("users.title")} description={t("users.description")} />
+    <ApiErrorNotice error={error} />
+    <section className="record-surface user-create"><h2>{t("users.addTitle")}</h2><form onSubmit={create}><div className="form-grid">
+      <label>{t("users.name")}<input required minLength={2} value={displayName} onChange={(event) => setDisplayName(event.target.value)} /></label>
+      <label>{t("users.email")}<input required type="email" value={email} onChange={(event) => setEmail(event.target.value)} /></label>
+      <label>{t("users.role")}<select value={role} onChange={(event) => setRole(event.target.value as Role)}><option value="rental_employee">{t("roles.rental_employee")}</option><option value="operations_manager">{t("roles.operations_manager")}</option></select></label>
+      <label>{t("users.password")}<input required type="password" minLength={8} autoComplete="new-password" value={password} onChange={(event) => setPassword(event.target.value)} /></label>
+    </div><div className="form-actions"><button className="button button-primary" disabled={saving}>{saving ? t("users.saving") : t("users.add")}</button></div></form></section>
+    {!users && <LoadingState label={t("users.loading")} />}
+    {users && <div className="table-shell"><table className="data-table"><caption className="visually-hidden">{t("users.title")}</caption><thead><tr><th>{t("users.name")}</th><th>{t("users.email")}</th><th>{t("users.role")}</th><th>{t("users.status")}</th><th>{t("users.action")}</th></tr></thead><tbody>{users.map((record) => <tr key={record.public_ref}><th>{record.display_name}<span className="table-secondary">{record.public_ref}</span></th><td>{record.email ?? "—"}</td><td>{t(`roles.${record.role}`)}</td><td><span className={`badge ${record.active ? "status-available" : "status-blocked"}`}>{t(record.active ? "users.active" : "users.inactive")}</span></td><td><button type="button" className="button button-secondary" disabled={record.public_ref === currentUser?.public_ref} onClick={() => toggleActive(record)}>{t(record.active ? "users.deactivate" : "users.activate")}</button></td></tr>)}</tbody></table></div>}
+  </div>;
+}
diff --git a/frontend/src/pages/VehicleDetail.tsx b/frontend/src/pages/VehicleDetail.tsx
index a41d374..27f169f 100644
--- a/frontend/src/pages/VehicleDetail.tsx
+++ b/frontend/src/pages/VehicleDetail.tsx
@@ -1,4 +1,4 @@
-import { useEffect, useState } from "react";
+import { useCallback, useEffect, useState } from "react";
 import { Link, useParams } from "react-router-dom";
 import { useTranslation } from "react-i18next";
 import { api } from "../api/client";
@@ -7,6 +7,8 @@ import { useLocaleFormat } from "../i18n/format";
 import { SeverityBadge, StatusBadge } from "../components/Badge";
 import { Icon } from "../components/Icons";
 import { ErrorState, LoadingState, PageHeader } from "../components/PageChrome";
+import { VehicleMaintenanceActions } from "../components/VehicleMaintenanceActions";
+import { useAuth } from "../context/AuthContext";
 
 const TABS = ["overview", "bookings", "inspections", "maintenance", "quality"] as const;
 type Tab = (typeof TABS)[number];
@@ -18,16 +20,18 @@ export function VehicleDetail() {
   const [vehicle, setVehicle] = useState<VehicleDetailData | null>(null);
   const [error, setError] = useState<string | null>(null);
   const [tab, setTab] = useState<Tab>("overview");
+  const { user } = useAuth();
 
-  useEffect(() => {
+  const load = useCallback(() => {
     if (!publicRef) return;
-    setVehicle(null);
     setError(null);
     api
       .get<VehicleDetailData>(`/api/v1/vehicles/${publicRef}`)
       .then(setVehicle)
       .catch(() => setError(t("detail.notFound")));
-  }, [publicRef]);
+  }, [publicRef, t]);
+
+  useEffect(() => { setVehicle(null); load(); }, [load]);
 
   if (error) return <ErrorState message={error} />;
   if (!vehicle) return <LoadingState label={t("detail.loading")} />;
@@ -95,7 +99,7 @@ export function VehicleDetail() {
       )}
 
       {tab === "maintenance" && (
-        <ul className="record-list">
+        <><ul className="record-list">
           {vehicle.maintenance.length === 0 && <li>{t("detail.noMaintenance")}</li>}
           {vehicle.maintenance.map((m) => (
             <li key={m.public_ref}>
@@ -104,7 +108,7 @@ export function VehicleDetail() {
               <time dateTime={m.occurred_at}>{formatShortDate(m.occurred_at)}</time>
             </li>
           ))}
-        </ul>
+        </ul>{user?.role === "operations_manager" && <VehicleMaintenanceActions vehicle={vehicle} onSaved={load} />}</>
       )}
 
       {tab === "quality" && (
diff --git a/frontend/src/styles.css b/frontend/src/styles.css
index 0191e67..f060f35 100644
--- a/frontend/src/styles.css
+++ b/frontend/src/styles.css
@@ -280,6 +280,19 @@ details summary { cursor: pointer; color: var(--teal-dark); }.data-table details
 .booking-cancel-form h2 { margin: 0 0 14px; font-size: 1rem; }
 .booking-cancel-form label { display: flex; flex-direction: column; gap: 6px; color: var(--ink-soft); font-size: var(--type-label); font-weight: 700; }
 .booking-cancel-form textarea { min-height: 92px; padding: 10px 11px; color: var(--ink); background: white; border: 1px solid var(--line-strong); border-radius: var(--radius); font: inherit; }
+.checkout-result { margin-top: 18px; padding: 18px 22px; }
+.checkout-result h2 { margin: 0 0 6px; font-size: 1rem; }
+.checkout-result p { margin: 0; color: var(--ink-soft); }
+.checkout-result.success { border-left: 4px solid var(--success); }
+.checkout-result.warning { border-left: 4px solid var(--warning); }
+.maintenance-actions, .user-create { margin-top: 18px; padding: 20px; }
+.maintenance-actions > form > label, .release-form label { display: flex; flex-direction: column; gap: 6px; color: var(--ink-soft); font-size: var(--type-label); font-weight: 700; }
+.maintenance-actions textarea { min-height: 92px; padding: 10px 11px; border: 1px solid var(--line-strong); border-radius: var(--radius); font: inherit; }
+.release-form { display: flex; align-items: end; gap: 10px; padding-top: 16px; border-top: 1px solid var(--line); }
+.release-form label { flex: 1; }
+.release-form input { min-height: 44px; padding: 8px 11px; border: 1px solid var(--line-strong); border-radius: var(--radius); }
+.user-create h2 { margin: 0 0 14px; font-size: 1rem; }
+.table-secondary { display: block; color: var(--ink-soft); font-size: var(--type-meta); font-weight: 400; }
 .condition-fieldset { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; margin: 0 0 17px; padding: 0; border: 0; }.condition-fieldset legend { margin-bottom: 8px; color: var(--ink-soft); font-size: .67rem; font-weight: 700; }.check-card { min-height: 48px; padding: 10px 12px; background: var(--surface-subtle); border: 1px solid var(--line); border-radius: var(--radius); }
 .return-form textarea { resize: vertical; min-height: 86px; }.form-actions { display: flex; justify-content: flex-end; gap: 9px; padding: 15px 22px; background: var(--surface-subtle); border-top: 1px solid var(--line); }
 .review-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; margin: 0 0 16px; background: var(--line); border: 1px solid var(--line); }.review-facts div { padding: 12px; background: white; }.review-facts dt { color: var(--muted); font-size: var(--type-label); text-transform: uppercase; }.review-facts dd { margin: 6px 0 0; font-size: var(--type-body); font-weight: 700; }