40 CFR § 85.1715 - Aircraft meeting the definition of motor vehicle.
This section applies for aircraft meeting the definition of motor vehicle in § 85.1703.
(a) For the purpose of this section, aircraft means any vehicle capable of sustained air travel above treetop heights.
(b) The standards, requirements, and prohibitions of 40 CFR part 86 do not apply for aircraft or aircraft engines. Standards apply separately to certain aircraft engines, as described in 40 CFR part 87.