When does each Zone establish the deadline for foreign player registration?

Each Zone establishes the deadline for foreign player registration prior to the start of each season to ensure that all teams have the opportunity to prepare their rosters and comply with the rules and regulations before competitive play begins. This timeline allows teams to strategically evaluate their needs, make necessary acquisitions or changes, and ensures that all roster management is handled before any games are played. Establishing this deadline ahead of the season helps maintain a level playing field and supports the integrity of the competition across all participating teams.

The other options suggest timing that does not align with standard practices in player registration. For example, waiting until the start of the season or after the first match would undermine planning and roster stability, while mid-season breaks would not be practical for integration of new players into the teams effectively.