Do I need to join a scheme to sign off Minor Works Certificate?

[westward10]

At level 2 you aren’t classed as and won’t be classed as competent, we aren’t wellie wearers. level 3 NVQ and the completion of an electrotechnical apprenticeship is what you’d need and what anyone would want to see.

Qualifications and competence don't necessarily go hand in hand.

 

[davesparks]

So any minor works, like changing a plug socket like for like requires an electrician in a scheme to do the tests and fill in the form.

No, not at all, that's not notifiable under part P so no need for scheme membership.

Most people wouldn't even consider replacing a single accessory as minor works and wouldn't do much other than some basic tests to confirm it is safe and functional.