A "regular briefing" refers to a scheduled meeting or update where important information is shared with a group of people in a consistent manner. Full definition
Communicating to the Client to provide regular briefings on individual appointment details including diary management for appointment date / times, achieved through regular face - to - face... more (cv-library.co.uk)
Provide regular briefings on the state of security to the Board of Directors and senior leadership (jobhero.com)
He has been receiving regular briefings from the acting president and he has also been going through the print media and electronic media to follow the happenings in the country. (nigeriapoliticsonline.com)