These Regulations apply to Great Britain and amend the Renewable Heat Incentive Scheme Regulations 2011 (the “2011 Regulations”) and the Domestic Renewable Heat Incentive Scheme Regulations 2014 (the “2014 Regulations”). The 2011 Regulations and 2014 Regulations create schemes under which owners of plants which generate heat from specified renewable sources and meet specified criteria, and producers of biomethane for injection, may receive payments at prescribed tariffs for heat used for eligible purposes.