Manufactured housing is habitable only if:
(1) there is no defect or deterioration in or damage to the home that creates a dangerous situation;
(2) the plumbing, heating, and electrical systems are in safe working order;
(3) the walls, floor, and roof are:
(A) free from a substantial opening that was not designed; and
(B) structurally sound; and
(4) all exterior doors and windows are in place and operate properly.
Official text of the Texas Occupations Code as published by the Texas Legislative Council.