Inquiries about CIP can be found on the website of the General Administration of Press and Publication or the official website China Map Library. General Administration of Press and Publication → Service → Convenience query → Query of press and publication products → Verification →CIP data check number → Input year, six-digit check number and verification code for query. The starting year of this query data is from September 20, 2009 to September 3, 2009. If it is not available, there is another query entry.

In addition, there is an inquiry entrance on the right side of the home page of official website in China Map Library. -The Gulu cultural media publishes books.