Standard Interpretations
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.
- 1926.905 - Clarification of the intent of 29 CFR 1926.905(h) and (k). - 04/01/1982
- 1926.905 - Redrilling Seismic Shotholes For The Purpose of Plugging the Hole to Protect Groundwater. - 10/22/1984
- 1926.905 - Restrictions on drilling within 50 feet of a hole loaded with explosives. - 03/05/2010
- 1926.905 - Seismic explorations as it pertains to detonation. - 02/03/1981
- 1926.905(h) - Blasting and Use of Explosives Relative. - 08/26/1981
- 1926.905(h) - Clarification concerning allowable drilling distance between loaded holes for a blasting operation. - 10/30/1984
- 1926.905(h) - Restrictions on drilling within 50 feet of a hole loaded with explosives. - 03/05/2010
- 1926.905(h) - Use of construction equipment around explosive loaded bore holes. - 06/22/1999
- 1926.905(i) - Clarification concerning allowable drilling distance between loaded holes for a blasting operation. - 10/30/1984
- 1926.905(j) - Restrictions on drilling within 50 feet of a hole loaded with explosives. - 03/05/2010
- 1926.905(k) - Blasting and Use of Explosives Relative. - 08/26/1981
- 1926.905(k) - Restrictions on drilling within 50 feet of a hole loaded with explosives. - 03/05/2010