Standard Interpretations
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OSHA requirements are set by statute, standards, and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. Each letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information.
- 1926.55 - Special emphasis program for silicosis. - 03/27/1998
- 1926.55 - Whether it is mandatory to use a wet saw when cutting brick or concrete block. - 07/20/2006
- 1926.55(a) - Allowable TLV of coke gases at the breathing levels of the employees. - 08/17/1977
- 1926.55(a) - Whether it is mandatory to use a wet saw when cutting brick or concrete block. - 07/20/2006