Apologies if this has been previously mentioned but I just picked up from the ODPM website a circular letter re Part P
"It has been drawn to our intention that some local authorities in letting contracts for electrical installation work in dwellings specify that only installers registered with the National Inspection Council for Electrical Installation Contracting (NICEIC) or which are members of the Electrical Contractors Association (ECA) should be acceptable for carrying out the work. Local authorities are reminded that there are ten authorised competent person schemes for Part P. Installers registered with any of the full competence schemes have been assessed as competent to carry out any electrical installation work in dwellings in accordance with the requirements of the Building Regulations;"
"Local authorities should ensure that charges for checking full plans applications or building notices and carrying out inspections of building work, including that relating to Part P, are pre-fixed in their charges scheme as required by the Building (Local Authority Charges) Regulations 1998. Authorities do not have powers to reassess a fixed charge, which they have levied for a particular application or notice, during the course of the work."
It does suggest that some LA's have been too keen by half