12. Any arrangements made by virtue of section 31(2)(c) of the Health Act 1999 (arrangements between NHS bodies and local authorities) for or in connection with the exercise by a local authority of any functions of a Health Authority or NHS trust shall not affect any power or duty to recover charges in respect of services provided in the exercise of those functions and these Regulations shall apply as if the functions were exercised by the Health Authority or NHS trust with which the arrangements were made.