Section 541.3 - Application(a) Except as provided in paragraph (b) and (c) of this section, this standard applies to the following:(1) Passenger motor vehicle parts identified in § 541.5(a) that are present in:(ii) Multipurpose passenger vehicles with a gross vehicle weight rating of 6,000 pounds or less; and(iii) Light-duty trucks with a gross vehicle weight rating of 6,000 pounds or less, that NHTSA has determined to be high theft in accordance with 49 CFR 542.1 ; and(iv) Light duty trucks with a gross vehicle weight rating of 6,000 pounds or less, that NHTSA has determined to be subject to the requirements of this section in accordance with 49 CFR 542.2 .(2) Replacement passenger motor vehicle parts identified in § 541.5(a) for vehicles listed in paragraphs (1)(i) to (iv) of this section.(b)Exclusions. This standard does not apply to the following:(1) Passenger motor vehicle parts identified in § 541.5(a) that are present in vehicles manufactured by a motor vehicle manufacturer that manufactures fewer than 5,000 vehicles for sale in the United States each year.(2) Passenger motor vehicle parts identified in § 541.5(a) that are present in a line with an annual production of not more than 3,500 vehicles.(3) Passenger motor vehicle parts identified in § 541.5(a) that are present in light-duty trucks with a gross vehicle weight rating of 6,000 pounds or less, that NHTSA has determined to be subject to the requirements of this section in accordance with 49 CFR 542.2 , if the vehicle line with which these light-duty trucks share majority of major interchangeable parts is exempt from parts marking requirements pursuant to part 543.(c) For vehicles listed in subparagraphs (1)(i) to (iv) of this section that are(1) not subject to the requirements of this standard until September 1, 2006, and(2) manufactured between September 1, 2006 and August 31, 2007; a manufacturer needs to meet the requirements of this part only for lines representing at least 50% of a manufacturer's total production of these vehicles. 70 FR 28851 , May 19, 2005