The Advertising Standards Authority (ASA) regulates advertising across all UK media, investigating misleading and offensive ads. Ofcom regulates broadcasting and telecommunications to protect viewers and consumers. Both organizations operate under the Communications Act 2003. The BCAP advertising codes establish rules around advertising content like preventing ads from encouraging irresponsible drinking. Recent ads ruled against by the ASA for breaching these codes include a Jane Plan diet ad that made unauthorized health claims and referenced weight loss amounts.