Section 565.2 - Application(a)(1) Except as provided in paragraph (a)(2) of this section, subpart B of this part 565 applies to passenger cars, multipurpose passenger vehicles, trucks, buses, trailers (including trailer kits), incomplete vehicles, low speed vehicles, and motorcycles manufactured on or after October 27, 2008 whose VINs have a letter "A" or "B" in the 10th position, and to passenger cars, multipurpose passenger vehicles, trucks, buses, trailers (including trailer kits), incomplete vehicles, low speed vehicles, and motorcycles manufactured on or after April 30, 2009. Vehicles imported into the United States under 49 CFR 591.5(f) , other than by the corporation responsible for the assembly of that vehicle or a subsidiary of such a corporation, are excluded from requirements of §§ 565.13(b) , 565.13(c) , 565.13(g) , 565.13(h) , 565.14 and 565.15 .(2) All motor vehicles identified as model year 2009 or earlier vehicles by their manufacturer must comply with subpart C of this part 565.(b) Subpart B of this part 565 applies to vehicles manufactured on or after April 30, 2008 and before April 30, 2009, whose vehicle identification number (VIN) does not have a letter "A" or "B" in the 10th position of the VIN and that are not identified as model year 2009 or earlier vehicles by their manufacturer. 73 FR 28370 , May 16, 2008