Amended Occupational Health and Safety Act

       Unless another method is prescribed, a notice under  this Act shall be served-

(a)       by delivering a copy thereof to the person upon whom it is to be served;

(b)       by leaving such a copy at the usual or last known place of residence or business of such a person; or

(c)        by sending such a copy by registered post to the usual or last known place of residence or business of such a person.