Clarification concerning allowable drilling distance between loaded holes for a blasting operation.

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.

 


DATE: October 30, 1984

 

 

 

Clarification of the intent of 29 CFR 1926.905(h) and (k).

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.

April 1, 1982

Commissioner Robert Beard
Department of Labor and Industries
P.O. Box 12064
Richmond, Virginia 23241

Dear Commissioner Beard:

This is in response to your telephone inquiry of March 22, 1982, to our office of Construction and Civil Engineering Safety Standards, requesting a clarification of the intent of 29 CFR 1926.905(h) and (k).

Redrilling Seismic Shotholes For The Purpose of Plugging the Hole to Protect Groundwater.

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.

October 22, 1984

Seismic explorations as it pertains to detonation.

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.

February 3, 1981

Restrictions on drilling within 50 feet of a hole loaded with explosives.

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.

March 5, 2010

Letter #20080729-8550

Re: Does 29 CFR §1926.905(h) allow a drill to be used within 50 feet of a hole loaded with explosives when it is necessary to use the drill to open up a previously-drilled hole so that it can also be loaded?