Find out about the legal definitions of biofuel products, excise duty rates and the roles and responsibilities of producers, and in some cases, users of these products before 1 April 2022.Find out about the legal definitions of biofuel products, excise duty rates and the roles and responsibilities of producers, and in some cases, users of these products before 1 April 2022.Read MoreNoticeHM Revenue & Customs – Activity on GOV.UK