ONTARIO REGULATION 387/00

made under the

occupational health and safety act

Made: June 21, 2000
Filed: June 26, 2000

Amending Reg. 839 of R.R.O. 1990

(Designated Substance — Benzene)

1. Subsections 4 (1) and (2) of Regulation 839 of the Revised Regulations of Ontario, 1990 are revoked and the following substituted:

(1) Every employer shall take all necessary measures and procedures by means of engineering controls, work practices and hygiene practices and facilities to ensure that the time–weighted average exposure of a worker to airborne benzene shall not exceed 1.0 parts benzene per million parts of air by volume.

(2) In complying with subsection (1), the employer shall ensure that the maximum concentration of exposure to airborne benzene shall not exceed 5.0 parts benzene per million parts of air by volume and the exposure of a worker to such maximum concentration,

(a) shall not exceed 15 minutes at any one time;

(b) shall not occur more than four times in a work day; and

(c) shall not occur until at least 60 minutes have elapsed from the time of the last previous exposure to that concentration.

2. Clause 5 (3) (b) of the Regulation is amended by striking out “dated the 29th day of October, 1984” and substituting “dated June 30, 2000”.

3. Section 11 of the Regulation is revoked and the following substituted:

11. The procedures for monitoring, sampling and determining the concentrations of airborne benzene in the atmosphere of a workplace and a worker’s exposure to airborne benzene shall be in accordance with standard methods for workplace air sampling and analysis.

4. Paragraph 1 of the Schedule to the Regulation is amended by striking out “as set out in the Code mentioned in section 11” and substituting “in accordance with standard methods for workplace air sampling and analysis”.

5. This Regulation comes into force on September 30, 2000.