When must your employer establish a hearing conservation program? When employees are exposed to noise levels that are equal to or greater than 85 dBA over 8 hours When noise levels exceed 95 dB over any 15 minute period When anticipated noise levels exceed reasonably expected or anticipated levels When employees are subject to sudden impact noise or prolonged noise levelsWhich of the following is a category of insulating protective equipment (IPE)? hard hats gloves safety shoes rubber blankets