This document provides information about Clearcast and its role in regulating broadcast advertising in the UK. It summarizes that Clearcast works with advertisers and agencies to ensure television and video-on-demand ads comply with the UK advertising codes to gain approval for airing. It oversees the pre-clearance of over 32,000 scripts and 64,000 ads annually. On rare occasions, 0.1% of cleared ads are later found to violate codes by the Advertising Standards Authority after airing. The document outlines Clearcast's process for script review and working with the ASA on any post-airing complaints.