On Board Trains Occupational Health and Safety Regulations

7.6 (1) No person shall use a hazardous substance for any purpose in a work place where it is reasonably practicable to substitute for it a substance that is not a hazardous substance.

(2) Where a hazardous substance is to be used for any purpose in a work place and an equivalent substance that is less hazardous is available to be used for that purpose, the equivalent substance shall be substituted for the hazardous substance where reasonably practicable.