RSA 266:59-b Emission Control Equipment.

I. (a) Every motor vehicle driven on the ways of this state which is subject to inspection under this chapter shall be equipped with all of the emission control equipment which was part of that motor vehicle as originally equipped, and such equipment shall be properly connected to prevent excessive emissions. Motor vehicle inspections conducted in accordance with this chapter shall include a visual check for the presence and proper connection of the following equipment on vehicles so equipped:
(1) Catalytic converter.
(2) Gas cap.
(3) Evaporative purge canister.
(4) Positive crankcase ventilation (PCV) valve and properly configured hoses.
(5) Properly connected air injection pump/pulse air systems.
(b) The commissioner of the department of safety,