24 CFR § 3286.105
Requirement for installer licensing
February 22, 2021
(a) Installer Licensing. The installer that installs a manufactured home in a state that does not have a qualifying installation program must be certified or licensed in accordance with the requirements in subpart C of this part.
(b) Use of licensed installer. When the retailer or manufacturer agrees to provide any set up in connection with the sale or lease of the home, the retailer or manufacturer must ensure that the installer is licensed in accordance with these regulations.