WASHINGTON, July 30 (TNSFR) -- A manufacturer of custom entertainer motorcoaches is seeking a temporary exemption from a federal safety rule requiring lap-and-shoulder belts on all seats, asking for permission to use lap-only belts for side-facing seating. The National Highway Traffic Safety Administration (NHTSA) has received the petition from Nix Coach Interiors, LLC, and is now requesting public comment. The request focuses on Federal Motor Vehicle Safety Standard No. 208, which mandates Typ more PR