C.F.R. » Title 40 » CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY › SUBCHAPTER U—AIR POLLUTION CONTROLS › PART 1036—CONTROL OF EMISSIONS FROM NEW AND IN-USE HEAVY-DUTY HIGHWAY ENGINES › Subpart F—Test Procedures

40 C.F.R. § 1036.503

Engine data and information to support vehicle certification for NHTSA

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See § 1036.505 for engine data and information required to support vehicle certification.

[91 FR 7779, Feb. 18, 2026]