2005 Idaho Code - 67-7038 — MUFFLERS AND NOISE RESTRICTIONS

                                  TITLE  67
                      STATE GOVERNMENT AND STATE AFFAIRS
                                  CHAPTER 70
                            IDAHO SAFE BOATING ACT
    67-7038.  MUFFLERS AND NOISE RESTRICTIONS. (1) It shall be unlawful for
any person to operate, or permit the operation of, any motorboat on the waters
of the state of Idaho unless the motorboat shall at all times be equipped with
a muffler or a muffler system in good working order and in constant operation
and effectively installed to prevent any excessive or unusual noise.
    (2)  For the purposes of this section, "muffler" shall mean a sound
suppression device or system designed and installed to abate the sound of
exhaust gases emitted from an internal combustion engine and which prevents
excessive or unusual noise.
    (3)  It shall be unlawful for any person to operate, or permit the
operation of, any motorboat on the waters of the state of Idaho in such a
manner as to exceed the following noise levels:
    (a)  For motorboats manufactured before January 1, 1995, a noise level of
    90dB(A) when subjected to a stationary sound level test as prescribed by
    SAE J2005;
    (b)  For motorboats manufactured on or after January 1, 1995, a noise
    level of 88dB(A) when subjected to a stationary sound level test as
    prescribed by SAE J2005.
    (4)  It shall be unlawful for any person to operate, or permit the
operation of, any motorboat on any lake or reservoir of the state of Idaho,
which is more than five hundred (500) feet in width, in such a manner as to
exceed a noise level of 75dB(A) measured as specified in SAE J1970. Provided,
that such measurement shall not preclude a stationary sound level test as
prescribed by SAE J2005.
    (5)  No person shall operate, or give permission for the operation of, any
motorboat on the waters of the state of Idaho that is equipped with an altered
muffler or a muffler cutout, bypass or other device designed or so installed
so that it can be used to continually or intermittently bypass or otherwise
reduce or eliminate the effectiveness of any muffler or muffler system
installed in accordance with the provisions of this section.
    (6)  No person shall remove, alter or otherwise modify in any way a
muffler or muffler system in a manner which will prevent it from being
operated in accordance with the provisions of this section.
    (7)  Effective January 1, 1995, a person shall not manufacture, sell or
offer for sale any motorboat unless it is equipped with a muffler or muffler
system which does comply with subsection (3) of this section. This subsection
shall not apply to motorboats designed, manufactured and sold for the sole
purpose of competing in racing events and for no other purpose.
    (8)  The provisions of this section shall not apply to motorboats
registered and actually participating in an authorized marine event, or to a
motorboat being operated by a boat or engine manufacturer for the sole purpose
of testing and/or development.
    (9)  Any peace officer who has reason to believe that a motorboat is not
in compliance with the noise levels established in this section may direct the
operator of such motorboat to submit the motorboat to an on-site test to
measure noise levels, with the officer on board if such officer chooses, and
the operator shall comply with such request. If such motorboat exceeds the
decibel levels established in this section, the officer may direct the
operator to take immediate and reasonable measures to correct the violation,
including returning the motorboat to a mooring and keeping the motorboat at
such mooring until the violation is corrected or ceases.

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