Each NFL team can have up to 10 players on the squad.
They can practice with the team but can’t play in games.
Practice players can sign with any team’s 53-man roster — except a team’s next opponent within six days of the game (10 days on a bye week).
Players with no accrued seasons (at least six games on the 53-man roster), unless they were active on game day for nine or fewer games in the accrued seasons.
Every team can have two players on the practice squad who have two accrued seasons.
Players can be on the practice squad for two seasons — three if their team keeps 53 players on the roster at all times. A PS season equals at least three games during the first two years or one game during the third PS season.