The CPC International project:
New XML Products for the CPC Scheme and Definitions:
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Amended June 2023:
- Introduced in May 2019: CPC Compilation of Changes sample
- Introduced in January 2017:
CPC XML schemas:
- CPC Scheme Files Specification (December 2023)
- CPC Definition Files Specification (November 2023)
- CPC Scheme Files Specification (August 2021)
- Changes introduced in November 2016:
- Changes introduced in April 2015:
Guide to the CPC:
Subclasses where 2000 series symbols are used:
- List of subclasses where 2000 series symbols are used (updated 1 May 2019)
Combination Sets:
- List of technical areas where Combination Sets are authorised for classification (updated 19 September 2024)
- List of additional Combination Sets which can be used for search only (updated 1 May 2019)
CPC Coverage:
- CPC Coverage November 2013 (PDF 519kb)
CPC News:
- October 2013 (PDF 1992kb)
- October 2012 (PDF 967kb)
General documentation:
- CPC trifold (PDF 830kb)
- CPC Presentation (PDF 550kb)