The Advertising Codes lay down rules for advertising agencies and media ownerships written by the Committee of Advertising Practice (CAP) and Broadcast Committee of Advertising Practice (BCAP) to ensure advertising is responsible. The rules inform advertisers what can and cannot be said to avoid misleading audiences or causing offense. Additional rules apply to advertising of products like alcohol, medicines, and gambling to ensure health and safety. The Advertising Standards Authority (ASA) administers the codes to close loopholes and enforce compliance.