Under the Electricity Supply Act 1990, offences and their punishment are provided in sections 8, 23, 33, 37, 45, 49, 50 and 52. Under the Electricity Regulations 1994, regulation 122 makes it an offence for any person who contravenes or fails to comply with any provisions of the Regulations and provides the punishment on conviction.

Under the Gas Supply Act 1993, offences and their punishment are provided in sections 5, 29, 30, 31 and 36. Under the Gas Supply Regulations 1997, regulation 142 makes it an offence for any person who contravenes the Regulations and, on conviction, is punishable under section 31 of the Act.