https://regulations.justia.com/regulations/fedreg/agencies/department-of-labor/mine-safety-and-health-administration/2013/05/31?registers=between Sun, 28 Apr 2024 05:23:38 -0700 Sun, 28 Apr 2024 05:23:38 -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/2013/05/31?registers=between https://regulations.justia.com/regulations/fedreg/2013/05/31/2013-12949.html https://regulations.justia.com/regulations/fedreg/2013/05/31/2013-12949.html Fri, 31 May 2013 00:00:00 -0700 2013-12949 Notice http://www.gpo.gov/fdsys/pkg/FR-2013-05-31/pdf/2013-12949.pdf