Building Permit Requirements; Provides that certain residential manufactured buildings may not be denied building permit for placement of such building; prohibits local government from adopting certain technical amendments to FBC; prohibits local enforcement agency from requiring building permit for work valued at specified amount; prohibits project from being divided into multiple projects; requires building permit for certain work regardless of value of work; requires contractor to maintain certain written records; prohibits local enforcement agency from requiring building permit for specified work on backup power system installed by certain persons or entities; requires local enforcement agencies to establish specified process to submit certain notice before installation of backup power system; prohibits local governments from adopting or enforcing certain ordinances, rules, or other measures; authorizes local enforcement agency to conduct one inspection, either in person or virtually; authorizes use of private provider for certain inspections; requires local enforcement agency to provide certain persons written notice of correction; authorizes stop-work order under specific circumstances; requires local enforcement agency to offer reinspection date within certain time period; provides that private provider inspection report constitutes acceptance; prohibits local enforcement agency from withholding or revoking certificate of occupancy based solely on failed inspection report.