A quick note that the official draft of CIRCA is now published:
A Proposed Rule by the Homeland Security Department on 04/04/2024
All information is linked from https://www.federalregister.gov/documents/2024/04/04/2024-06526/cyber-incident-reporting-for-critical-infrastructure-act-circia-reporting-requirements
NOTE: This is quite long, so leave yourself time to read it. Comments and related material must be submitted on or before June 3, 2024.