Regulation of advertising takes place through the ASA and OFCOM. The ASA reviews ads to ensure they are suitable and do not cause harm or offense, with rules around children, shock tactics, and unsafe practices. OFCOM is the communications regulator that ensures high quality TV and radio programming appealing to diverse tastes, while protecting viewers from harmful material. Both organizations investigate complaints and can ban ads found to breach their codes, such as a Durex condom ad deemed inappropriate for children to view.