Public List of Authorised A Electricians updated 6th November, 2025 for the Installation, Alteration, Extension and Certification of Single Phase Electrical Installations.
Public List of Authorised B Electricians updated 6th November, 2025 for the Installation, Alteration, Extension of Single Phase Electrical Installations and Three Phase Electrical Installations and certification in the case of installations rated less than 300 Amps per phase.
Public List of Warranted Electrical Engineers holding an Authorisation Updated 16th October, 2025 for the Installation, Alteration, Extension and Certification of Single Phase Electrical Installations and Three Phase Electrical Installations.
| Can a person with the listed qualification design, install and certify this type of installation? | Listed Qualification | |||||
| Type of Installation | Authorisation A | Warranted Mechanical Engineer with Auth A | Warranted Electrical Engineer with Auth A | Authorisation B | Warranted Mechanical Engineer with Auth B | Warranted Electrical Engineer with Auth B |
| Single Phase | Yes | Yes | Yes | Yes | Yes | Yes |
| Three phase less than 300Amps | No | No | No | Yes | Yes | Yes |
| Three phase no limit | No | No | No | No | No | Yes |
| Single phase grid-tied generator (e.g. PV, WT and CHP) | No | No | Yes | No | No | Yes |
| Three phase grid-tied generator (e.g. PV, WT and CHP) | No | No | No | No | No | Yes |
For standby generators(not intended to be operated in parallel with the grid), the generator rating would then determine the required competences.
The info is only a summary and Authorisation holders should always refer to the Regulations for details.
The above information is being provided for information purposes only.
Only the respective regulations in the Electrical Installations Regulations S.L.545.24 have the force of law.
To report an alleged malpractice by an authorised provider (Electrician) in carrying out a wiring electrical installation refer to the section “Dispute Resolution”
The Ministry for the Environment, Energy and Public Cleanliness (MEEC) had launched a consultation on the Electrical Installations (amendment) Regulations 2024 where a number of amendments to the Electrical Installations Regulations (S.L.545.24) had been proposed. The consultation was closed but the documentation may be access at the following link: [Consultation Documentation].
A comparative table showing and explaining the changes proposed to the Electrical Installations Regulations: (document here)
