This chapter does not apply to:(1) buildings owned and operated by the federal government;(2) equipment regulated by a municipal inspection and certification program in accordance with Health and Safety Code §754.018 and §74.65(b) in this chapter;(3) equipment located in the following structures if access is limited primarily to employees:(A) industrial facilities;(B) grain silos;(C) radio antennas;(D) bridge towers;(E) underground facilities; and(F) dams;(4) equipment located in a private building that has two or fewer floors used exclusively by a labor union, trade association, private club, or charitable organization; and(5) elevators located in a single family dwelling except as provided by Texas Health and Safety Code §754.0141.