These Regulations provide for a range of matters relating to the functions of the National Health Service Commissioning Board (“the Board”) and clinical commissioning groups (“CCGs”). They also make provision related to the transfer of staff between NHS bodies, the appointment of Independent Mental Health Advocates (IMHAs), payment of certain medical expenses and public health functions of local authorities. They are made under powers in the European Communities Act 1972 (c. 68); the National Health Service Act 2006 (c. 41) (“the 2006 Act”) and the Mental Health Act 1983 (“the 1983 Act”), as amended by the Health and Social Care Act 2012 (c. 7) (“the 2012 Act”), and powers in the 2012 Act.