Allowable TLV of coke gases at the breathing levels of the employees.

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. This 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. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.

August 17, 1977

Mr. J.P. O'Donovan
Safety Director
Eastern Region
Turner Construction Company
1528 Walnut Street
Philadelphia, Pennsylvania 19102

Dear Mr. O'Donovan:

This is in response to your letter dated May 3, 1977, to Mr. James J. Concannon, which was forwarded to this office for reply, regarding the interpretation of Paragraph 5.6.4. (1) ANSI A10. 9-1970, as adopted in 29 CFR 1926.700(a). In addition, this confirms a telephone conversation on the subject matter with a member of my staff.

Whether it is mandatory to use a wet saw when cutting brick or concrete block.

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. This 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. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.

July 20, 2006

Maria Galvan
[by e-mail]

Re: Whether it is mandatory to use a wet saw when cutting brick or concrete block.

Dear Ms. Galvan:

This is in response to your email correspondence dated June 15, 2005, to the Occupational Safety and Health Administration (OSHA). We apologize for the long delay in responding.

We have paraphrased your question as follows:

Question: Do OSHA requirements mandate the use of a wet saw to cut bricks and cement blocks?