OP
Spudnik
Thanks wveryone for your answers, just to clarify, to be able to sign off domestic work i will just need pat p and wont need to bother with the 2391? i will do at some point but due to expense i want to just get what i need for now. also is it a must that i have or take the 17th to get the part p?
Thanks agin people
No you do not need 2391 to certify your own work.
Yes you will need to do the 17th update during your first year of membership.
Best check with the scheme you choose first tho.