The Ubuntu Code of Conduct is probably the most widely read document I’ve written. Agreement to it is prerequisite to participation in the Ubuntu community in all official and many unofficial capacities. It is has successfully set a positive tone and helped turn Ubuntu into what is probably the most friendly and civil free software project I’ve worked in.
Over time, quite a few free software projects have copied or adapted the CoC. Tired of giving folks permission, the project went ahead and licensed the CoC under the Creative Commons Attribution-Sharealike license to explicitly allow reuse as long as attribution to the Ubuntu project is given and derivatives are similarly modifiable.
In a recent development, it was adapted by the Fort Erie, Ontario town council for use government interactions of their business improvement areas! It’s amazing to see the document gain so much traction! Unfortunately, the person who repurposed the CoC did not attribute the document correctly and was publicly accused of plagiarism by another council member!
Ubuntu is happy to have Fort Erie, and anyone else, use or adapt the CoC. Folks should just take care to be honest about where it came from and maintain the BY-SA license.