The BBFC rates films based on their content, including language, violence, sex, and other potentially offensive material. They assign age ratings from U to 18 to indicate what age groups films are appropriate for. The rating process involves film directors submitting their finished films to the BBFC for examination. Two examiners from the BBFC then carefully watch each film and determine the appropriate rating based on the type and frequency of potentially offensive content. The different age ratings indicate what types of content are allowed at each rating level, with more restrictive ratings like 12A and 18 allowing stronger language, sex scenes, violence and gore.