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.
Making the world better, one answer at a time. Lights are always required to be installed on a boat trailer. This is so no one runs into the back of the trailer, especially at night.he size required is determined by the 'hitch' on the trailer or device being towed. 1-7/8 and 2 inch balls are common sizes.     You may also need a T-One adaptor to hook up the trailer lighting.