When does a passer no longer hold the title of 'passer'?

The title of 'passer' is held by a player who is attempting to throw a forward pass. Once the player either completes the pass, has it intercepted, or the play is otherwise concluded (like going out of bounds or being downed), they cease to be recognized as the passer. Specifically, if the player actively participates further in the play, such as by running the ball after throwing it, they no longer fit the definition of a passer, as they are engaged in a different phase of play.

This context helps clarify that while a passer may start the play by throwing the ball, their role changes based on subsequent actions. Therefore, the conclusion of the play or their participation in another action solidifies the point at which they no longer hold the title of passer.