Certificate ratings provide guidelines for the content in films based on their rating. Universal films (U) can contain mild language and have no significant issues with drugs, sex or violence. Parental Guidance films (PG) may not be suitable for young children and can explore violence and contain language like "shit" but not strong language. 12A films allow moderate language and can briefly show sex/nudity and violence without detail. 15 rated films are not suitable for those under 15 and can show sex, violence, language but not strongly or graphically. 18 rated films are only for adults and can portray very strong content without limitation.