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The Certificates of Electrical Safety (COES) system explained 2017 published

ESV has produced and published The Certificates of Electrical Safety (COES) system explained 2017 handbook, aimed at assisting the electrical industry in understanding the requirements for purchasing, lodging and issuing COES as specified by the Electricity Safety Act and the Electricity Safety (Installations) Regulations.

To download your copy of the COES system explained 2017, click here.

For a brief outline of time frames for the lodgement of the different types of certificates (prescribed and non-prescribed) and frequently asked questions, see A practical guide to using COES.

For more information on COES, click here.


Contact our COES team

For information and advice about COES please email us directly at or call 03 9203 9700 and select option 3.


The Electricity Safety Act 1998 and Electricity Safety (Installations) Regulations 2009 require a Certificate of Electrical Safety (COES) to be issued for all electrical installation work.
Failure to comply with these requirements is a criminal offence and licensed workers who do so may be subject to disciplinary action which could result in the suspension or cancellation of their licence.