For compressed natural gas (CNG) refuelling points, referred to in point 3.4 of Annex II to Directive 2014/94/EU, the following technical specifications shall apply:

The fuelling pressure (service pressure) shall be 20,0 MPa gauge (200 bar) at 15 °C. A maximum fuelling pressure of 26,0 MPa with ‘temperature compensation’is allowed as addressed in standard EN ISO 16923, ‘Natural gas fuelling stations – CNG stations for fuelling vehicles’.