In this area of the website, CPC related material such as scheme files, notices of changes, concordances, etc, will be published about one month before official entry into force of this material.
The publication of the pre-released material started on 6 May 2014 concerning the June 2014 CPC scheme version (2014-06).
The pre-release will normally happen on the first Tuesday of a given month (for example Tuesday 6 May 2014) for entry into force on the first day of the following month (for example 1 June 2014).
7 April 2026: 2026.05 pre-released material:
- 2026.05 CPC Scheme in PDF and in XML
- 2026.05 CPC to IPC concordance in PDF, XML and TXT
- Notices of Changes related to the "2026.05 CPC Scheme":
- CPC Notice of Changes 1818-MP12735 (various)
- CPC Notice of Changes 1877-DP12737 (various)
- CPC Notice of Changes 1878-MP12752 (various)
- CPC Notice of Changes 1879-RP10480 (A41G)
- CPC Notice of Changes 1880-RP12200 (G06T finalised)
- CPC Notice of Changes 1881-RP12201 (H04B finalised)
- CPC Notice of Changes 1882-RP12202 (H04W finalised)
- CPC Notice of Changes 1883-RP12203 (various finalised)
- CPC Notice of Changes 1884-RP12215 (B64F finalised)
- CPC Notice of Changes 1885-RP11979 (H04N finalised)
- CPC Notice of Changes 1886-RP12183 (B60K finalised)
- CPC Notice of Changes 1887-RP12190 (B08B finalised)
- CPC Notice of Changes 1888-RP10453 (H05B finalised)
- CPC Notice of Changes 1889-RP10460 (H04L finalised)
- CPC Notice of Changes 1890-RP0754 (B09B finalised)
- CPC Notice of Changes 1891-RP11925 (G06Q finalised)
- CPC Notice of Changes 1892-RP12086 (B01J finalised)
- CPC Notice of Changes 1893-RP12426 (F23B)
- CPC Notice of Changes 1894-RP12459 (B64D finalised)
- CPC Notice of Changes 1895-MP12753 (various)
- CPC Notice of Changes 1896-RP12292 (F25B)
- CPC Notice of Changes 1897-DP12762 (various)
- CPC Notice of Changes 1898-RP12030 (C08G)
- CPC Notice of Changes 1899-MP12511 (A47C)
- CPC Notice of Changes 1900-MP12313 (C07D)
- CPC Notice of Changes 1901-RP0552 (B23C finalised)
- CPC Notice of Changes 1902-MP12083 (various)
- CPC Notice of Changes 1903-MP12140 (various)
- CPC Notice of Changes 1904-RP11754 (C22C finalised)
- CPC Notice of Changes 1905-RP11530 (C07K)
- CPC Notice of Changes 1906-RP12830 (A61Lcorrected)
- CPC Notice of Changes 1908-RP12819 (various corrected)