Federal law prohibits the following acts or the causing
1. The removal or rendering inoperative by any
person, other than for purposes of maintenance,
repair or replacement, of any device or element of
design incorporated into any new vehicle for
the purpose of noise control, prior to its sale or
delivery to the ultimate purchaser or while it is in
2. The use of the vehicle after such device or element
of design has been removed or rendered inoperative
by any person.
Among those acts presumed to constitute tampering are
the acts listed below.
Removal of the noise shields or any underhood
Removal or rendering engine speed governor
(if equipped) inoperative so as to allow engine
speed to exceed manufacturer speci?cations.
Fan and Drive:
Removal of fan clutch (if equipped) or rendering
? Removal of the fan shroud (if equipped).
Removal of the air cleaner silencer.
? Modi?cation of the air cleaner.
Removal of the muffler and/or resonator.
? Removal of the exhaust pipes and exhaust pipe