|1||2010 - 03/05/2010 - Restrictions on drilling within 50 feet of a hole loaded with explosives.|
|2||1984 - 10/30/1984 - Clarification concerning allowable drilling distance between loaded holes for a blasting operation.|
|3||1984 - 10/22/1984 - Redrilling Seismic Shotholes For The Purpose of Plugging the Hole to Protect Groundwater.|
|4||1982 - 04/01/1982 - Clarification of the intent of 29 CFR 1926.905(h) and (k).|
|5||1981 - 02/03/1981 - Seismic explorations as it pertains to detonation.|
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