http://www.legislation.gov.uk/uksi/2021/1391/regulation/1The Building Regulations etc. (Amendment) (England) Regulations 2021enBUILDING AND BUILDINGS, ENGLANDStatute Law Database2026-03-23Expert Participation2024-04-06 These Regulations amend the Building Regulations 2010 (S.I. 2010/2214) and the Building (Approved Inspectors etc.) Regulations 2010 (S.I. 2010/2215) as they apply in relation to England. The amendments made by these Regulations provide for a new metric for the measurement of energy efficiency in the form of the target primary energy rate and introduce new regulation for on-site electricity generation and in relation to overheating (in particular by virtue of the introduction of paragraph L2 into part L of Schedule 1 to S.I. 2010/2214, and a new Part O). Amendments are made to S.I. 2010/2215 in consequence of these changes. PART 111These Regulations may be cited as the Building Regulations etc. (Amendment) (England) Regulations 2021 and come into force on 15th June 2022.2They extend to England and Wales and apply in relation to buildings and building work in England.3In these Regulations—“the Building Regulations” means the Building Regulations 2010;“the Approved Inspectors Regulations” means the Building (Approved Inspectors etc.) Regulations 2010.4In this regulation and regulation 17, “building” and “building work” have the meanings given in regulation 2(1) of the Building Regulations 2010. “Building” has the meaning given in regulation 2(1) of the Building Regulations 2010 (S.I. 2010/2214); that instrument was amended by S.I. 2013/1959, 2014/110, 2015/767, 2016/285, 2017/856 and 1274. There are other amending instruments but none is relevant. S.I. 2010/2215, as amended by S.I. 2012/3119, 2013/747, 2013/1959, 2014/579 and 2016/285; there are other amending instrument but none is relevant. Reg. 1 in force at 15.6.2022, see reg. 1(1)Reg. 1(4) inserted (1.12.2022) by The Building etc. (Amendment) (England) Regulations 2022 (S.I. 2022/603), regs. 1(4), 3(1)