A HUD engineering foundation inspection is to conduct a structural inspection for determining If the MFD home is permanently tied down, and that the home would not float off the piers or foundation, That the drainage of the house will not flood the crawlspace or basement. The engineer may use his/her judgement as to the permanence and method of the tie downs. Modular homes are built in compliance with typical building codes just as a stick-built home would be. MOBILE Mobile homes are the predecessor of manufactured homes but built prior to 1976 prior to the HUD Standards being published. These were generally poorly built and not to either Federal or local standards/codes. MANUFACTURED Manufactured Homes are built from 1976 and on when the HUD standards became effective. The HUD standards improved the quality, safety, and energy efficiency of the homes. The most recent HUD standards are dated September 1996. Manufactured homes have exterior labels and an interior data sheet where Mobile and Modular homes do not.