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Training (COCN1)

Core Commercial Gas Safety ACS Assessment

This gas safety assessment is designed to test the gas safety competence of an operative in Core Commercial gas work by means of practical knowledge, training and assessment.

Before taking a commercial gas Appliance or Pipework assessment such as TPCP1/1A ICPN1, a candidate must first hold either Core Commercial Gas Safety (COCN1) or a change over Core domestic Gas to Commercial (CODNCO1). The remaining assessments can then be taken.


£745 + VAT


£745 + VAT

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