Will H. Hays
Hays tried to reduce studio costs by telling studios how to make movies that would be safe enough not to have to be cut or changed. Each board kept its "standards" secret. Hays had to try to guess what would or would not be allowed by each board. He made a set of guidelines he called "The Don'ts and Be Carefuls". In general he was not successful in quieting demands for federal censorship.