According to a recent OHA memo about the new affiliation rules...
- Junior A teams are allowed either a team-to-team affiliation with one lower team, or 12 players at large, of which two must be goaltenders. (So, in essence, say Newmarket could choose to affiliate with YSE again, or they could pick 12 payers from anywhere in minor and junior hockey within the OHA territory; Buzzers could chose to stay with Marlies or sign 12 players from anywhere to AP).
-Players selected to be on this list of 12 must be approved by the team they're presently registered with to affiliate. Once they're on an affiliation list, they can not be removed unless they have been released by their registered team. (So, say Kingston picked the 12-man option and wanted to affiliate a Napanee goalie. They'd get a signature from Napanee to have him on their list and he cannot be removed from it unless the Raiders release him).
-Junior A teams can modify their lists by adding players until Jan. 15, but any player added must be verified by Hockey Canada and the OHA prior to skating - verification includes signatures from both teams involved.
- Players part of a team-to-team affiliation cannot be a specially-affiliated player with another team. Likewise, once a team allows a player to be part of a list, that team is no longer eligible for a team-to- team affiliation. (So, say, if Vaughan Kings allowed a player to go on Georgetown's list, they'd be ineligible to affiliate themselves with Vipers).
Unsure how it works if a Midget/Juvenile/Jr B or C player would prefer to AP (if asked) with another team even though an affiliation is already generally in place with a certain Junior team.