Distributor – The person (in this case person refers to a company) who is responsible for the distribution of electricity.

DNO – Distribution Network Operator, these are the companies licensed to distribute electricity around the UK.

ESQCR – The Electricity Safety and Continuity Regulations, these are the regulations that the Distribution Network Operator works too.

Minor works – Electrical work that does not normally require notification to a building control body, examples include extending or altering an existing circuit that is not in a special location (such as a bathroom).

Notifiable work – Electrical work that requires the relevant building control body to be notified, examples include installing a new circuit or replacing a consumer unit.

Building Regulations – These are the regulations that should be complied with when building work is carried out.

Wiring Regulations – Colloquial name for BS7671 Requirements for Electrical Installations.

Competent Persons Scheme – This allows an individual to self-certify that their work complies with the building regulations, examples being the NICEIC and ELECSA