Appropriate ear muffs or ear plugs must be made available as a last resort if it is not possible to make the workplace less noisy. This requirement is a small part of the Occupational Noise Exposure standard, which requires employers to ensure that workers are exposed to less than 90 decibels of noise over an 8-hour day. If noise levels reach 85 decibels over an 8-hour day, the employer must develop a hearing conservation program as outlined by the regulation. If no other method of eliminating or reducing the noise exposure is found, the employer must supply PPE. Ear muffs and ear plugs are available to employees and can be obtained from the Warehouse.