North Dakota Century Code Title 20.1. Game, Fish, Predators, and Boating § 20.1-13-07.1. Regulation of noise from boats--Penalty

1. A boat operated on the waters of this state between the hours of twelve midnight and five a.m. may not produce a noise in excess of eighty-eight decibels for more than ten minutes.

2. For purposes of subsection 1, the decibel level of a boat must be measured from the shoreline closest to the location from which a complainant or other individual noticed the noise.

3. A boat operator who violates this section is guilty of a class 1 noncriminal offense.

4. A boat operator cited for a violation of this section may not operate the boat that produced the noise in violation of this section until a muffler is installed.