(a) Vehicle certification information. At any time during the production years ending August 31, 2029, August 31, 2030, August 31, 2031, and August 31, 2032, each manufacturer shall, upon request from the Office of Vehicle Safety Compliance, provide information identifying the vehicles (by make, model and vehicle identification number) that have been equipped with EDRs meeting the requirements of § 563.7(a) and (b). The manufacturer's designation of a vehicle as equipped with an EDR meeting these requirements is irrevocable.

(b) Vehicles produced by more than one manufacturer. For the purpose of calculating average annual production of vehicles for each manufacturer and the number of vehicles manufactured by each manufacturer under § 563.4(a), a vehicle produced by more than one manufacturer shall be attributed to a single manufacturer as follows:

(1) A vehicle which is imported shall be attributed to the importer.

(2) A vehicle manufactured in the United States by more than one manufacturer, one of which also markets the vehicle, shall be attributed to the manufacturer which markets the vehicle.

(c) Attributability by express written contract of vehicles produced by more than one manufacturer. A vehicle produced by more than one manufacturer shall be attributed to any one of the vehicle's manufacturers specified by an express written contract, reported to the National Highway Traffic Safety Administration under 49 CFR part 585, between the manufacturer so specified and the manufacturer to which the vehicle would otherwise be attributed under § 563.4(b).

(d) Average annual production. For the purposes of calculating average annual production of vehicles for each manufacturer and the number of vehicles manufactured by each manufacturer under § 563.4(a), only count vehicles to which this regulation is applicable as specified § 563.3 and are equipped with an EDR.