CNS ratings

The CNS has a six-tier rating system. The first ratings are: A1 (suitable for all ages), A2 (suitable for ages 13 and up), A3 (suitable for adults only), and A4 (limited adult audience; extreme caution even for most adults). The next ratings are B, which means morally offensive in part for all, and a C rating for films which are condemned. This system is little-known today.