In addition to the other reports, studies and documents provided in this chapter, the board shall submit to the legislative bodies and to the planning agencies of all of the counties, cities, and to other governmental agencies and instrumentalities, official representatives, other agencies, organizations and individuals, public or private, designated by the board, an annual report on or before the first day of March. The annual report shall contain a report on the status of the regional plan, and descriptions of those sections of the regional plan which have been amended, revised, added or deleted during the year, and a brief report of other major activities.