§ 1910.24 Step bolts and manhole steps.

(a) Step bolts. The employer must ensure:

(1) Each step bolt installed on or after January 17, 2017 in an environment where corrosion may occur is constructed of, or coated with, material that protects against corrosion;

(2) Each step bolt is designed, constructed, and maintained to prevent the employee's foot from slipping off the end of the step bolt;

(3) Step bolts are uniformly spaced at a vertical distance of not less than 12 inches (30 cm) and not more than 18 inches (46 cm) apart, measured center to center (see Figure D–6 of this section). The spacing from the entry and exit surface to the first step bolt may differ from the spacing between the other step bolts;