LNG marine fuel carbon-intensity table updated with new load-range and methane-slip values

Plain-language summary · AI-assisted

The regulation's Table 4, which sets the Additional Carbon Intensity Attributable to Use (UCI) values for LNG fuel, has been replaced with a revised version covering marine end uses. The new table introduces differentiated UCI figures based on engine load range: marine vessels operating LNG engines at 51–75% load are assigned 12.7 g CO2e/MJ, and those at 76–100% load are assigned 7.1 g CO2e/MJ, compared to a general rate of 22.2 g CO2e/MJ. A separate, lower set of UCI values applies to marine vessels equipped with a methane slip reduction kit, ranging from 2.9 to 5.5 g CO2e/MJ depending on load range. Marine vessels with unknown load characteristics are assigned the highest rate of 22.2 g CO2e/MJ, while all other LNG end uses retain a UCI of 0. Fuel suppliers, compliance account holders, and marine fleet operators using LNG will need to verify which load range and equipment category applies to their vessels when calculating carbon intensity for compliance reporting.

Who this affects
marine vessel operators using LNG fuel · low carbon fuel suppliers and blenders · compliance account holders under the Low Carbon Fuels Act · fleet managers with LNG-powered vessels