Auxiliary Emission Control Device

Auxiliary Emission Control Device (AECD) means any element of design which senses temperature, vehicle speed, engine RPM, transmission gear, manifold vacuum, or any other parameter for the purpose of activating, modulating, delaying, or deactivating the operation of any part of the emission control system.

Source

40 CFR § 86.082-2

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Scoping language

The definitions of this section apply to this subpart and also to subparts B, D, I, and R of this part.

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