Please see the LICENSE file in each top-level directory for the terms applicable to that directory and its relative sub-directories.

The relevant directories and licenses are:

document/       - W3C Software and Document Notice and License
specification/  - W3C Software and Document Notice and License
spectec/        - Apache License 2.0
interpreter/    - Apache License 2.0
test/           - Apache License 2.0
proposals/      - Creative Commons Universal 1.0 International License (CC0)
papers/         - Creative Commons Attribution 4.0 International License (CC BY 4.0)