Start early to engineer against noise.
D000162:Acoustics; D003120:Colorado; D004430:Ear Protective Devices; D004781:Environmental Exposure; D004864:Equipment and Supplies / Q000592:standards; D006801:Humans; D008452:Maximum Allowable Concentration; D009622:Noise / Q000517:prevention & control*; D009787:Occupational Medicine / Q000592:standards; D014481:United States