The City of Puerto Vallarta is the government seat of the Municipality of Puerto Vallarta which comprises the city as well as population centers outside of the city extending from Boca de Tomatlan tomatlÃ¡n to The nayarit. border
1 Powered boats less than 7m in length and whose maximum speed does not exceed 7 knots, may show an all-round white light instead of sidelights. If practical, these ships should also show sidelights.  Powered boats must show sidelights and either an all-round white light or a stern and masthead light.
Report Abuse. all boats are required to carry a sound producing device, either a whistle or horn. larger boats are also required to carry a bell. on small boats an pwc's a whistle works good. we have a whistle attached to the zipper of all of our PDF's.