Skip to content

Electronic Detonators

Direct Final Rule

30 CFR Parts 56 and 57

RIN 1219-AB88

Published January 14, 2020

Comment Period Closes: February 13, 2020



Direct final rule; confirmation of effective date.

Published April 7, 2020

 



File Commenter Date Received
AB88-Comm-1 Paul Schulte PhD., Director, Division of Science Integration (Cover Page) 2/5/2020
AB88-Comm-1A Letter from Paul Schulte, PhD., Director, Division of Science Integration 2/5/2020
AB88-Comm-1B National Institute for Occupational Safety and Health, Comments to the Mine Safety and Health Administration (MSHA) NIOSH 2/5/2020
AB88-Comm-1C Waynert, Joseph & Holloway, Christopher L. (2013). "Underground Mine Environmental Impact on RF Coupling to Electric Blasting Caps" 2/13/2020
AB88-Comm-2 Mark Ellis, Industrial Minerals Association-North America, IMA-NA 2/13/2020
AB88-Comm-2A Mark Ellis, Industrial Minerals Association-North America, IMA-NA 2/13/2020
AB88-Comm-3 Susan Flanagan, Institute of Makers of Explosives, IME 2/13/2020
AB88-Comm-3A Joshua Hoffman, PhD., PE, Director of Technical Services, Institute of Makers of Explosives, IME 2/13/2020