Some highly rated boat trailers include those manufactured by E-Z Loader, such as the E-Z Loader tandem and single-axle trailers; LoadRite, such as the galvanized, roller, single-axle trailer; and Continental, which features the "A" and "CA" model trailers. As of 2015, these companies produce boat trailers that are certified by the National Marine Manufacturer's Association (NMMA).
NMMA-certified boat trailers are top-notch products in terms of capacity ratings, identification plates, safety chains, lighting, couplings, braking and conspicuity systems, winches and registration methods. Boat trailer makers with NMMA certification adhere to established standards in the boating industry, as well as to safety regulations in the United States. Other boat trailers that are NMMA-certified as of 2015 include those manufactured by AmeraTrail, Heritage Custom, Karavan, Boatmaster, Venture, Coyote MFG, BoatMate, Tracker Marine, Magic Tilt and Marine Masters.