grunny
In the world of electrical installation ,you are competent to complete and sign the certification that says your work or others complies with bs 7671
Your competence is proved and would be accepted in a court or by institutions
In the world of installations in domestic properties,your competence is no different,however,domestic electrical installation now comes under building control because it has been included as part p of the building regulations
To comply with the building regulations then certain works (rewires,cons units,other major works)and work in a special location,that is a bathroom and surprisingly a kitchen (a kitchen is not a special location in bs 7671)
need to be pre notified to building control before starting the work ( no notification required if there is full plans approval though)
Along with this notification they will charge a fee It varies from area to area
They then have the responsibility to check at 1st fix and 2nd fix and to test the installation
To avoid going through all this You are able to join a scheme that is registered as a competent person scheme You may join as defined scope if you are a plumber for instance or in your case full scope mainly for electricians
By joining one of these schemes ,you can avoid the notification to buiding control and the fee because as a member of a scheme you are permitted to self certificate for compliance with the building regs
If you dont join a scheme and go the building control route,then they may accept your certificates as proof of compliance with bs7671 or they can test it themselves They would probably accept your certification because you have 2391 but its not assured
The 2391 is the qualification required to become a qualifying supervisor with an niceic approved contractor where you can then oversign others installations
The 2391 will assist you getting work in the PIR world Testing for yourself or as an employee
regards Des