New FAA AC 120-FPM Flightpath Management open for comments
https://www.faa.gov/aircraft/draft_docs/afs_ac/

This advisory circular (AC) provides guidance and recommended practices to operators under Title 14 of the Code of Federal Regulations (14 CFR) parts 121 and 135, as well as part 142 training centers, in developing operational policies, procedures, and training to support effective flightpath management (FPM).

Comments due by March 5, 2022 can be provided by non-US citizens and organizations.