have their Presidio issued Referee ID cards with name and picture in their possession
Click here to learn how to handle situations where the Referee does not have the card in his or her possession...
You MUST be currently registered as a USSF referee (up-to-date) and have your risk management completed if you are over age 18. Also you will need the ID Card to officiate any games in Presidio Soccer League and/or any related tournaments.
Member league's contract directly with the Referee Associations of their choice. Associations are required to use currently registered U.S. Soccer Federation referees and listed as "Approved" on the CalSouth website for either 2011 or 2012: