Collaborative Computational Project No. 4
Software for Macromolecular X-Ray Crystallography

Resource page for CCP4 licensing

This information is intended for CCP4 staff only!


Dealing with email enquiries

Licence documents

Contributors Licence Agreement

Current STFC (6.0) Licence

Previous CCLRC (6.0) Licence

Current (5.0) Licence

Other useful resources

Licence banners

Latest (6.0) Licence

GNU Software and Third Party Software is expected to come with its own banners.

Current (5.0) Licence


Latest (6.0) Licence

Current (5.0) Licence

Supporting Documents


Updated policy - Feb 2010:
Updated policy on commercial usage
See Martyn's summary from 6th June 2003:
Executive summary on CCP4 commercial policy
13th December 2004:
Licensing CCP4 for web services (interim)