This rulemaking revises the exemption for the manufacture of recreational vehicles to clarify which recreational vehicles qualify for an exemption from HUD's Manufactured Home Construction and Safety Standards and Manufactured Home Procedural and Enforcement regulations. HUD is adopting a recommendation of the Manufactured Housing Consensus Committee (MHCC) but expanding the definition of recreational vehicle and modifying it to require certification with the updated ANSI standard, A119.5-15.