Fixed ladder protection and safe entry into storm sewer manholes.

OSHA interpretation letter responding to a request to confirm the interpretation of 29 CFR 1910.27(d)(2) on fixed ladders in manholes. It states that landing platforms are required for every 30 feet, that ANSI A14.3-1984 raised this to 50 feet as de minimis, and that employers must implement confined space entry procedures including hazard testing and training.