Rule 12.11.320 - SOUND PRODUCING DEVICES ON MOTORBOATS(1) Motorboats shall have efficient sound producing devices as follows: (a) less than 16 feet in length - none;(b) 16 feet to less than 26 feet in length - one hand, mouth, or power-operated whistle, or horn, audible at least one-half mile;(c) 26 feet to not more than 65 feet in length - one bell which when struck produces a clear, bell-like tone and one hand or power-operated whistle, or horn, audible at least one mile.Mont. Admin. r. 12.11.320
NEW, 1980 MAR p. 1063, Eff. 3/28/80; TRANS, from ARM 12.6.705, 2001 MAR p. 18, Eff. 1/12/01.23-2-521, 87-1-301, 87-1-303, MCA; IMP, 23-2-521, MCA;