This unit involves the skills and knowledge required to maintain vital relay interlocking systems in a rail network.

It includes preparing and maintaining vital relay interlocking system. It also includes completing the maintenance of vital relay interlocking system, repairing system faults, performing operational tests and reporting requirements.

Persons achieving competence in this unit will need to fulfil the applicable state/territory legislated rail safety requirements and comply with relevant codes of practice, rules and/or guidelines.

No other licensing, legislative or certification requirements apply to this unit at the time of publication.