Mobile Homes and Manufactured Buildings - As enacted, requires this state's definition of manufactured home to automatically update with the definition of manufactured home under title 42 of the United States Code, which currently excludes a self-propelled recreational vehicle. - Amends TCA Title 47; Title 55 and Title 68.

HB 1142 aligns Tennessee's definition of "manufactured home" with the federal definition under 42 U.S.C. § 5402(6), which excludes self-propelled recreational vehicles (RVs). This change updates the definition across three Tennessee statutes (Titles 47, 55, and 68) governing manufactured homes. The bill directly affects state regulations and enforcement related to manufactured homes, ensuring consistency with federal standards without creating new requirements or altering existing protections. It does not change eligibility for housing programs or impose new obligations on residents.