I.S. 10101:2020: Key Dates

1 April 2020:

New electrical installations may be designed and certified to the new standard

30 September 2020:

This is the last day new electrical installations may be designed to the old standard (such installations must be certified by 31 March 2022)

1 October 2020:

New electrical installations must be designed to the new standard

2022

31 March 2022:

This is the last day an installation may be pre-connection certified to the old standard (such installations must have been designed by 30 September 2020)

1 April 2022:

Electrical installations must be certified to the new standard.