Too close for comfort: OSHA confined spaces regulations.
D005161:Facility Regulation and Control; D015386:Hazardous Substances; D007318:Inservice Training; D016272:Occupational Health / Q000331:legislation & jurisprudence*; D010934:Planning Techniques; D012107:Research Design; D017751:Safety Management / Q000379:methods*; D013597:Systems Analysis; D014481:United States; D014489:United States Occupational Safety and Health Administration; D017132:Workplace / Q000331:legislation & jurisprudence*