Assertion: school bus's seat belt | /r/HasProperty | required on passenger cars
Facets:
value: since 1968
type: TEMPORAL
Source sentences:
text: Seat belts have been required on passenger cars since 1968; and 49 states and the District of Columbia have enacted laws requiring the use of seat belts in passenger cars and light trucks.
text: Seat belts have been required on passenger cars since 1968, and 49 States and the District of Columbia have enacted laws requiring the use of seat belts in passenger cars and light trucks.