CII Badging Silver level requires a code of conduct "The project MUST adopt a code of conduct and post it in a standard location".

LF has a code of conduct: https://www.linuxfoundation.org/code-of-conduct/.

However it seems "event" focused, not specifically targeting those working in projects.

Check with LFN if they would be open to extend their current code of conduct to meet CII Badging Silver Level requirements