https://regulations.justia.com/regulations/fedreg/agencies/mine-safety-and-health-administration/2017/12/26?registers=between Sat, 27 Apr 2024 10:43:45 -0700 Sat, 27 Apr 2024 10:43:45 -0700 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/2017/12/26?registers=between https://regulations.justia.com/regulations/fedreg/2017/12/26/2017-27666.html https://regulations.justia.com/regulations/fedreg/2017/12/26/2017-27666.html Tue, 26 Dec 2017 00:00:00 -0800 2017-27666 Notice https://www.gpo.gov/fdsys/pkg/FR-2017-12-26/pdf/2017-27666.pdf