As soon as censorship of the media was implemented in Occupied Japan, publishers quickly learned the importance of self-censorship. The idea was to avoid submitting anything to the Civil Censorship Detachment (CCD) that would be deleted or would cause an entire work to be suppressed (i.e., not published). The majority of publishers couldn’t afford to reprint an entire book if issues were identified by the CCD.
It is surprising, therefore, that publishers, who must have been aware that any mention of the CCD or censorship was prohibited (“Reference to Censorship” was one of banned topics in the Key logs issued by GHQ on a periodic basis), still chose to include in the colophon statements such as, “This book passed censorship” or a CCD assigned number. Below are examples of colophons with deletions.