Rules 7.03, 8.03(a)(6):
The Crew Chief shall telephone the Office of the Commissioner when any game has been forfeited and follow such telephone report immediately with a detailed written report.
Before declaring a game forfeited, the plate umpire shall consult with the Crew Chief and may only declare a game forfeited if the Crew Chief agrees.
Announcements shall be made over the P.A. system that a game may be forfeited and again when the game is declared forfeited. Announcement of the possibility of a forfeit must be made to both Clubs and the fans prior to a forfeit.