Sec. 791.004. EXEMPTIONS. (a) This chapter does not apply to the construction of a structure in a municipality that has in effect a nationally recognized model building code governing the construction if the building code requires at least one one-hour fire-resistive means of escape with a total width equal to or greater than the total exit width required under this chapter for a structure of three or more stories.

(b) This chapter does not apply to a grain elevator constructed of:

(1) steel;

(2) steel and concrete; or

(3) wood if fewer than five persons are employed at the grain elevator.

Acts 1989, 71st Leg., ch. 678, Sec. 1, eff. Sept. 1, 1989.