A systems approach is developed for defining compliance with the noise criteria of the Occupational Safety and Health Act of 1970. The result is a flow diagram which can be used as a “road map” for determining progress toward compliance. A flow diagram is also developed as a guideline for evaluating the feasibility of engineering noise control. General suggestions are made for controlling the noise produced by air sources, oscillating bodies, frictional sources, impact, and gears. Absorption, enclosures, and barriers have also been considered as means of interrupting the path between the source and the receiver. Noise exposure has been included as an important factor with economic feasibility as a final consideration in the flow diagram.

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