9 9 3 . ▁ ▁The ▁scope ▁of ▁the ▁act ▁is : ▁To ▁provide ▁for ▁the ▁health ▁and ▁safety ▁of ▁persons ▁at ▁work ▁and ▁for ▁the ▁health ▁and ▁safety ▁of ▁persons ▁in ▁connection ▁with ▁the ▁use ▁of ▁plant ▁and ▁mach in ery ; ▁the ▁ ▁protection ▁of ▁persons ▁other ▁than ▁persons ▁at ▁work ▁against ▁ha z ards ▁to ▁health ▁and ▁safety ▁ar ising ▁out ▁of ▁or ▁in ▁connection ▁with ▁the ▁activities ▁of ▁persons ▁at ▁work ; ▁to ▁establish ▁an ▁advis ory ▁council ▁for ▁occup ational ▁health ▁and ▁safety ; ▁and ▁to ▁provide ▁for ▁matters ▁connected ▁there with . ▁ ▁The ▁act ▁su pers edes ▁and ▁repe als : ▁The ▁Mach in ery ▁and ▁Occ up ational ▁Saf ety ▁Act , ▁ 1 9 8 3 , ▁the ▁Mach in ery ▁and ▁Occ up ational ▁Saf ety ▁Am end ment ▁Act , ▁ 1 9 8 9 , ▁and ▁the ▁Mach in ery ▁and ▁Occ up ational ▁Saf ety ▁Am end ment ▁Act , ▁ 1 9 9 1 . ▁ ▁Reg ulations ▁under ▁the ▁act ▁ ▁As best os ▁Reg ulations , ▁ 2 0 0 1 ▁Reg ulations ▁covering ▁work ▁that ▁may ▁expose ▁workers ▁to ▁as best os ▁dust . ▁ ▁Cert ificate ▁of ▁Compet ency ▁Reg ulations , ▁ 1 9 9 0 ▁– ▁Ob tain ing ▁a ▁Cert ificate ▁of ▁Compet ency ▁for ▁mechanical ▁engineering . ▁ ▁Const ruction ▁Reg ulations , ▁ 2 0 0 3 ▁su pers eded ▁by ▁Const ruction ▁Reg ulations ▁ 2 0 1 4