All sample rubrics are licenced under an International Attribution-Share Alike Creative Commons Licence.
This licence allows users to distribute, remix and build upon the work, and create Derivative Works – even for commercial purposes – as long as they credit the original creator/s (and any other nominated parties) and license any new creations based on the work under the same terms. All new Derivative Works will carry the same licence, so will also allow commercial use.
In other words, you agree to share your materials with others, if they will share their new works in return. This licence is often compared to the free software licences, known as ‘copyleft.’