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§ 1054.615 What is the exemption for engines certified to standards for Large SI engines?
(a) An engine is exempt from the requirements of this part if it is in an emission family that has a valid certificate of conformity showing that it meets emission standards and other requirements under 40 CFR part 1048 for the appropriate model year.
(b) The only requirements or prohibitions from this part that apply to an engine that is exempt under this section are in this section.