PUBLIC LAW 103-272—JULY 5, 1994 108 STAT. 957 tion in interstate commerce, a regrooved tire or a vehicle equipped with regrooved tires unless authorized by the Secretary. (e) UNIFORM QUALITY GRADING SYSTEM, NOMENCLATURE, AND MARKETING PRACTICES. — The Secretary shall prescribe through standards a uniform quality grading system for motor vehicle tires to help consumers make an informed choice when purchasing tires. The Secretary also shall cooperate with industry and the Federal Trade Commission to the greatest extent practicable to eliminate , deceptive and confusing tire nomenclature and marketing practices. A tire standard or regulation prescribed under this chapter supersedes an order or administrative interpretation of the Commission. (f) MAXIMUM LOAD STANDARDS. —The Secretary shall require a motor vehicle to be equipped with tires that meet maximum load standards when the vehicle is loaded with a reasonable amount of luggage and the total number of passengers the vehicle is designed to carry. The vehicle shall be equipped with those tires by the manufacturer or by the first purchaser when the vehicle is first bought in good faith other than for resale. § 30124. Buzzers indicating nonuse of safety belts A motor vehicle safety standard prescribed under this chapter may not require or allow a manufacturer to comply with the standard by using a safety belt interlock designed to prevent starting or operating a motor vehicle if an occupant is not using a safety belt or a buzzer designed to indicate a safety belt is not in use, except a buzzer that operates only during the 8-second period after the ignition is turned to the "start" or "on" position. § 30125. Schoolbuses and schoolbus equipment (a) DEFINITIONS. —In this section— (1) "schoolbus" means a passenger motor vehicle designed to carry a driver and more than 10 passengers, that the Secretary of Transportation decides is likely to be used significantly to transport preprimary, primary, and secondary school students to or from school or an event related to school. (2) "schoolbus equipment" means equipment designed primarily for a schoolbus or manufactured or sold to replace or improve a system, part, or component of a schoolbus or as an accessory or addition to a schoolbus. (b) STANDARDS. —The Secretary shall prescribe motor vehicle safety standards for schoolbuses and schoolbus equipment manufactured in, or imported into, the United States. Standards shall include minimum performance requirements for— (1) emergency exits; (2) interior protection for occupants; (3) floor strength; (4) seating systems; (5) crashworthiness of body and frame (including protection against rollover hazards); (6) vehicle operating systems; (7) windows and windshields; and ' (8) fuel systems. (c) TEST DRIVING BY MANUFACTURERS.— The Secretary may require by regulation a schoolbus to be test-driven by a mzuiufacturer before introduction in commerce.
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