Vital changes are expected in Amendment 3 regarding safety for contractors and consumers. This essential quick-reference guide to BS 7671 will be updated to the changes expected in Amendment 3 to BS 671:2008. The "On-Site Guide" is designed to be taken on-site for easy referencing and provides simple guidance on the application of BS 7671.Amendment 3 publishes on the 5 January 2015 and comes into effect on 1 July 2015. All new installations from this point must comply with Amendment 3 to BS 7671:2008.All expected updates in Amendment No. 3 will be included in the "On-Site Guide," which include, but are not limited to: Consumer Units (to come into effect January 2016) Wiring in escape routes Changes to earth fault loop impedances for all protective devices Circuit-breakers used as functional switches Overvoltage EMC & compatibility Changes to definitions throughout the Regulations"