If something is found not to comply with the wiring regulations, a description of the nature of the fault will be recorded on the Electrical Installation Condition Report and given a code for the level of danger it represents.
The codes used to determine whether there are non-compliances or issues with the electrical installation are numbered C1, C2 and C3. These codes will ultimately determine whether a ‘Satisfactory’ or ‘Unsatisfactory’ report will be applied to the installation.
Code C1 ‘Danger present’: There is a risk of injury and immediate remedial action is required to remove the dangerous condition.
Code C2 ‘Potentially dangerous condition’: Urgent remedial action required - this should declare the nature of the problem, not the remedial actions required.
Code C3 ‘Improvement recommended’: This code more often than not implies that while the installation may not comply with the current set of regulations, it complies with a previous set of regulations and so is deemed to be safe although this safety can be improved upon.
