(1) ‘Special use trailer’ means a trailer described under any of the following:

(a) A trailer that is eight and one-half feet or less in width and of any length and that is used for commercial or business purposes.

(b) A trailer that is used temporarily on a construction site for office purposes only.

(c) A mobile modular unit.

(2) ‘Special use trailer’ does not include any travel trailer. [1985 c.16 § 26; 1993 c.696 § 7; 2003 c.655 § 90a]