Fall protection. On the leading edge.
D000058:Accidental Falls / Q000517:prevention & control*; D000062:Accidents, Occupational / Q000517:prevention & control*; D000531:Altitude; D003252:Construction Materials; D004869:Equipment Safety / Q000191:economics; D006801:Humans; D007318:Inservice Training / Q000458:organization & administration; D016272:Occupational Health; D014481:United States