https://regulations.justia.com/regulations/fedreg/agencies/department-of-labor/mine-safety-and-health-administration/2012/07/30?registers=between Wed, 01 May 2024 16:48:46 -0700 Wed, 01 May 2024 16:48:46 -0700 Justia Regulations Tracker Copyright 2011 Justia Inc. https://regulations.justia.com/images/justiafedregulations.gif https://regulations.justia.com/regulations/fedreg/agencies/department-of-labor/mine-safety-and-health-administration/2012/07/30?registers=between https://regulations.justia.com/regulations/fedreg/2012/07/30/2012-18436.html https://regulations.justia.com/regulations/fedreg/2012/07/30/2012-18436.html Mon, 30 Jul 2012 00:00:00 -0700 2012-18436 Notice http://www.gpo.gov/fdsys/pkg/FR-2012-07-30/pdf/2012-18436.pdf