Mine Health & Safety Act of South Africa (Proximity Detection Systems) (1)OH & SPC CIRCULAR NO. 1/15 issued on 15th/ January/2015, states “Proximity Detection Systems requires after 3 month after publication.” (2) Government Gazette No.R125 showing the amendment of Chapter 8 of the Mine Health & Safety Act, was issued on 27th/February/2015. (3) Effective date of Proximity Detection Systems will be 28th/May/2015. (4) Chapter 8 of the Mine Health & Safety Act amendment tells the exemption of automatic braking system in 8.10.1.2(b) on Proximity Detection Systems . 1