These Regulations amend—
(i) the Coal and Other Mines (Managers and Officials) Regulations 1956,
(ii) the Coal and Other Mines (Surveyors and Plans) Regulations 1956,
(iii) the Coal and Other Mines (General Duties and Conduct) Regulations 1956,
(iv) the Coal and Other Mines (Safety Lamps and Lighting) Regulations 1956,
(v) the Coal and Other Mines (Electricity) Regulations 1956,
(vi) the Coal and Other Mines (Fire and Rescue) Regulations 1956,
(vii) the Coal and Other Mines (Locomotives) Regulations 1956,
(viii) the Coal and Other Mines (Sidings) Regulations 1956,
(ix) the Coal and Other Mines (Working Plans) Rules 1956,
(x) the Coal Mines (Cardox and Hydrox) Regulations 1956,
(xi) the Stratified Ironstone Shale and Fireclay Mines (Explosives) Regulations 1956,
(xii) the Coal and Other Mines (Shafts, Outlets and Roads) Regulations 1960,
(xiii) the Coal Mines (Explosives) Regulations 1961,
(xiv) the Coal and Other Mines (First Aid) Regulations 1962,
(xv) the Coal and Other Mines (Mechanics and Electricians) Regulations 1965, and
(xvi) the Coal and Other Mines (Training) Regulations 1967,
by substituting for the measurements expressed in imperial units, measurements expressed in metric units so as to preserve the effect of the various provisions except to the extent necessary to obtain amounts expressed in convenient and suitable terms.
In addition Regulation 3 of the Regulations amends the Coal and Other Mines (Working Plans) Rules 1956 to allow the use of Ordnance Datum as well as an assumed level below Ordnance Datum as had hitherto been the case.