1. Subject to the provisions of subregulation (3) an employer or a user, as the case may be, shall not permit any person who is or who appears to be under the influence of intoxicating liquor or drugs, to enter or remain at a workplace.
2. Subject to the provisions of subregulation (3) no person at a workplace shall be under the influence of or have in his possession or partake of or offer any other person intoxicating liquor or drugs.
3. An employer or user, as the case may be, shall in the case where a person is taking medicines, only allow such person to perform duties at the workplace if the side effects of such medicine do not institute a threat to the health or safety of the person concerned or other persons at such workplace.