© RTC-RMD-SAIL
CHAPTER I –Preliminary
Reg1: Short title, extend and applications
Reg2: Definitions
4/16/2020 6
MMR 1961 Draft MMR 2019
Forty (40) definitions Two(02) definitions Omitted One split in
Two and Twenty Six (26) New added Total
Sixty Five (65) Definitions
•Omitted-Support (35) and UndergroundManager (37)
•Approved Safety Lamp and Approved electric torch defined separately
•Added-abandoned working, average employment, average output, booster fan, contractor,
decline, deep-hole drilling and blasting, designer, discontinued working, disused working,
financial year, flame proof enclosure, Form, general body of air, haul road, hazard, Heavy
Earth Moving Machinery (HEMM), inset, intrinsically safe, manufacturer, mine, pipeline,
principal official, risk, supplier, working