Regulation 1 Citation and commencementI1 United Kingdom These Regulations may be cited as the Human Fertilisation and Embryology (Mitochondrial Donation) Regulations 2015 and shall come into force on 29th October 2015. Annotations Commencement I1 Reg. 1 in force at 29.10.2015, see reg. 1 ← Introduction Regulation 1 Regulation 2 →