Columbia subject headings:
Motor vehicles--Safety appliances--Government policy--United States.
Traffic safety--Government policy--United States.
United States. National Highway Traffic Safety Administration--Appropriations and expenditures.
Harvard subject headings:
Motor vehicles--Safety appliances--Government policy--United States.
Traffic safety--Government policy--United States.
United States. National Highway Traffic Safety Administration--Appropriations and expenditures.
Princeton subject headings:
Motor vehicles--Safety appliances--Government policy--United States.
Traffic safety--Government policy--United States.
United States. National Highway Traffic Safety Administration--Appropriations and expenditures.