Need a lil' help.....

[bugsy]

Sorry to butt in, Although i agree with you guys about the 2391 being a must for all sparks to do testing, but we don't live in a ideal world and as far as the Law is concerned anyone can do a PIR as long as they are competent..lol..... there are lots of guys out there who have been testing for years but have never done the 2391 exam.........crazy world we live in.......

Quite agree but competent is the operative word ,

 

[GT1]

Just to perhaps add some clarification for the OP.. and im only rewording what others have said..
sparky05084
ANYONE can change a consumer unit...
ANYONE can do any amount of electrical work in a dwelling..

however.... (here it comes)

a DIYer, or for that matter an electrician NOT part of a self certification scheme. MUST inform local building control, PRIOR to starting (notifiable) work, and when its completed, must then pay for local building control to test and inspect the work to ensure its up to standard.. And its that last bit which usually makes it unviable for the DIYer or indeed the non part P spark.. (due to the cost)

I agree with the others (having paid for and passed) that 2391 is desireable, but sadly not widely the case.
I was amazed at how many well established sparks were at the exam when i took mine, and many of them weren't taking it for the first time..!!