40 C.F.R. § 1051.101
What emission standards and other requirements must my vehicles meet?
Cite as 40 C.F.R. § 1051.101 (2026)
(a) You must show that your vehicles meet the following: (1) The applicable exhaust emission standards in § 1051.103, § 1051.105, § 1051.107, or § 1051.145. (i) For snowmobiles, see § 1051.103. (ii) For off-highway motorcycles, see § 1051.105. (iii) For all-terrain vehicles and offroad utility vehicles subject to this part, see § 1051.107 and § 1051.145. (2) The evaporative emission standards in § 1051.110. (3) All the requirements in § 1051.115. (b) The certification regulations in subpart C of this part describe how you make this showing. (c) These standards and requirements apply to all testing, including certification, production-line, and in-use testing. (d) Other sections in this subpart describe other requirements for manufacturers such as labeling or warranty requirements. (e) It is important that you read § 1051.145 to determine if there are other interim requirements or interim compliance options that apply for a limited time. (f) As described in § 1051.1(a)(4), offroad utility vehicles that are subject to this part are subject to the same requirements as ATVs. [67 FR 68347, Nov. 8, 2002, as amended at 70 FR 40487, July 13, 2005]
- Cross-references to the CFR
- 1051.11051.1031051.103.1051.1051051.105.1051.1071051.110.1051.115.1051.1451051.145.