Indiana Code Title 22. Labor and Safety § 22-15-4-5

(A) January 1, 1972, if the mobile structure is designed to be a dwelling;  or

(B) June 30, 1987, if the mobile structure is not designed to be a dwelling;  and

(A) a seal issued under IC 9-8-1.5 (before its repeal on July 1, 1987) or section 2 or 4 of this chapter;  and

(B) an affidavit from the manufacturer (if the mobile structure was manufactured in Indiana or the mobile structure was manufactured outside Indiana and has not been used by its owner) or a dealer who has sold at least three (3) mobile structures in the previous twelve (12) month period (if the mobile structure was manufactured outside Indiana and the mobile structure has been used by its owner) that states that the mobile structure meets or exceeds the applicable requirements adopted by the commission in its rules or an agreement under IC 22-13-2-12;