Question: are side marker lights required on a boat trailer?
Answer: Required Lights for Trailers Less Than 80" Wide and Less Than 30' Long. ... If your trailer is less than 6' long, you do not need to have front side marker lights or front side marker reflectors. If your trailer is less than 30" wide, you only need to have 1 brake light, 1 tail light, and 1 rear reflector.