Part P is not a qualification or something you have/need....it is a part of the building regs
Your son's qualifications will be more than adequate to register with a self certification body such as NICEIC DI, etc
yes you are correct but as i said the the domestic installer qualification is specifically tailored to Part P.
yes i'm sure his quals will allow him to register but will it allow him to undertake Part P notifiable work?
and for the OP I have just read through what is involved for AM2 and it is more in depth than the Domestic Installer course but i would ring NICEIC or NAPIT to verify the situation
when you find the definative answer post it on here then we will all know the correct answer.