https://regulations.justia.com/regulations/fedreg/agencies/mine-safety-and-health-administration/2012/12/28?registers=between Mon, 06 Jan 2025 17:44:57 -0800 Mon, 06 Jan 2025 17:44:57 -0800 Justia Regulations Tracker Copyright 2011 Justia Inc. https://regulations.justia.com/images/justiafedregulations.gif https://regulations.justia.com/regulations/fedreg/agencies/mine-safety-and-health-administration/2012/12/28?registers=between https://regulations.justia.com/regulations/fedreg/2012/12/28/2012-30963.html https://regulations.justia.com/regulations/fedreg/2012/12/28/2012-30963.html Fri, 28 Dec 2012 00:00:00 -0800 2012-30963 Rule http://www.gpo.gov/fdsys/pkg/FR-2012-12-28/pdf/2012-30963.pdf