The provisions of this chapter do not apply to:
1. Manufactured home parks operated by public housing authorities and established pursuant to the United States Housing Act of 1937, as amended (now 42 U.S.C. §§ 1437 et seq.).
2. Any lot in a manufactured home park which is rented or held out for rent overnight or for less than 3 months.
3. Any recreational vehicle located on a lot described in subsection 2.
4. Any lot in a manufactured home park or manufactured home on such a lot which is used occasionally for recreational purposes and not as a permanent residence.