This PCB is released under the Creative Commons Attribution-Share Alike 3.0 United States License. You may manufacture PCBs for both your own personal use, and for commercial use. You will have to provide a link to the original web source https://www.olimex.com/ on any documentation or website. You may also modify the PCB files, but you must then release them as well. Credit can be attributed through a link to the product website: https://www.olimex.com/