We're so glad you're thinking about contributing to a NPS open source project! If you're unsure about anything, just ask -- or submit the issue or pull request anyway. The worst that can happen is you'll be politely asked to change something. We love all friendly contributions.
We encourage you to read this project's CONTRIBUTING policy (you are here), its LICENSE, and its README.
If you have any questions or want to read more, check out the NPMap Open Source Policy GitHub repository (which the Natural Sounds & Night Skies Division is adopting until we have a formal NPS-wide one), or just shoot us an email.
This project is in the public domain within the United States, and copyright and related rights in the work worldwide are waived through the CC0 1.0 Universal public domain dedication.
All contributions to this project will be released under the CC0 dedication. By submitting a pull request, you are agreeing to comply with this waiver of copyright interest.