40 CFR § 1048.2
Who is responsible for compliance?
June 9, 2020
The regulations in this part 1048 contain provisions that affect both engine manufacturers and others. However, the requirements of this part are generally addressed to the engine manufacturer. The term “you” generally means the engine manufacturer, as defined in §1048.801, especially for issues related to certification (including production-line testing, reporting, etc.).
[73 FR 59231, Oct. 8, 2008]