OSHA noise regulations: pathways to compliance.
Personal ear protection is probably the most expensive and least fruitful approach when one considers the cost of plugs, tests, monitoring and record keeping.
D000056:Accident Prevention; D006317:Hearing Loss, Noise-Induced / Q000517:prevention & control; D006320:Hearing Tests; D006801:Humans; D007878:Legislation as Topic; D009622:Noise / Q000517:prevention & control*; D009623:Noise, Occupational / Q000517:prevention & control*; D009786:Occupational Health Services; D012449:Safety