Mines Safety and Inspection Amendment Regulations 2020 (WA)

4416 GOVERNMENT GAZETTE, WA 4 December 2020

MINERALS AND PETROLEUM

Amendment Regulations 2020.

M P301

Mines Safety and Inspection Act 1994

Mines Safety and Inspection Amendment

Regulations 2020

SL 2020/239

Made by the Governor in Executive Council.

1.   Citation

These regulations are the Mines Safety and Inspection

4 December 2020 GOVERNMENT GAZETTE, WA 4417

2.   Commencement

These regulations come into operation as follows —

(a)	regulations 1 and 2 — on the day on which these regulations are published in the Gazette;
(b)	the rest of the regulations — on the day after that day.

3. Regulations amended

These regulations amend the Mines Safety and Inspection

Regulations 1995.

4.           Regulation 9.1 amended

In regulation 9.1 in the definition of exposure standard:

(a) in paragraph (b) delete "determined;" and insert:

determined; or

(b)	after paragraph (b) insert:
(c) in relation to an atmospheric contaminant specified in regulation 9.11(2), the standard specified for the atmospheric contaminant in regulation 9.11(2);

5.           Regulation 9.11 amended

Delete regulation 9.11(2) and insert:

(2) The following standards apply for the purposes of

paragraph (c) of the definition of exposure standard in

regulation 9.1 —

(a)	respirable dust — a TWA concentration of
3.0 milligrams per cubic metre of air;
(b)	inhalable dust — a TWA concentration of 10.0 milligrams per cubic metre of air;
(c)	diesel particulate matter — a TWA concentration of 0.1 milligrams per cubic metre of air (measured as sub-micron elemental carbon).

6.           Regulation 9.13 amended

In regulation 9.13(1)(a) delete "a TWA exposure standard; and" and insert:

an exposure standard expressed by reference to a TWA
concentration; and

V. MOLAN, Clerk of the Executive Council.