eCFR :: 29 CFR 1910.23 -- Ladders.
https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1910/subpart-D/section-1910.23
WEBThe employer must ensure: ( 1) Ladder rungs, steps, and cleats are parallel, level, and uniformly spaced when the ladder is in position for use; ( 2) Ladder rungs, steps, and cleats are spaced not less than 10 inches (25 cm) and not more than 14 inches (36 cm) apart, as measured between the centerlines of the rungs, cleats, and steps, except that:
DA: 95 PA: 55 MOZ Rank: 51