What you'll learn?

  • Gas Safety Regulations
  • Combustion
  • Flueing
  • Pressure regulators
  • Purging
  • Emergency Actions
  • Ventilation
  • Gas pipework
  • let-by & tightness testing
  • Re-establishing gas supplies
  • Unsafe situations
  • Emergency valves
  • Gas controls
  • Gas rates & Pressures


COCN1, Commercial Natural Gas, is the core qualification and is normally a pre-requisite to have before attaining other additional commercial qualifications. There are some exceptions to this, but generally most candidates must complete COCN1, or already be in possession of this qualification before adding commercial qualifications.


  • Core Commercial Natural Gas - COCN1