Yes. Then your company would be regulated. (The employees would be regulated–not the owner.) They have no rules that establish when a crawl space height is considered safe. However, OSHA does have a General Duty Clause. [FONT=Verdana]It covers areas of occupational safety and health that are not addressed by a specific standard. It states that the workplace “must be free from recognized hazards that are likely to cause death or serious physical harm.”[/FONT] One of the things OSHA would be looking at, if anyone were to get injured or killed, is: employee training, and policies and procedures.
So, if you have employees it may well be good to establish procedures such as “if you have to remove your respirator, do not proceed” or “under no circumstances enter a crawl space < xx inches”. “Do not cross electric lines that are on the ground”, etc. You should document that instruction at least annually, with employees signing a training form. You also need to establish disciplinary action procedures. Training is worth nothing if it isn’t enforced. You can’t cite employee misconduct if you never enforce your rules.
I was an OSHA Compliance Officer in SC for 4 years. I conducted many fatality investigations. Let me know if you have other questions.