SI 2020/1541. The Renewable Transport Fuel Obligations (Amendment) Order 2020. Comes into force 31st December. These Regulations amend SI 2007/3072 The Renewable Transport Fuel Obligations Order 2007. They increase the multiplier which will be applied to any shortfall in a supplier’s main renewable transport fuel obligation by £0.20 to £0.50 for obligation periods beginning on or after 1st January 2021.