[Nevadaref]

Originally Posted by JoeTheRef

By the official's manual, I am required to give a verbal and visual signal for a spot throw-in, and I am only speaking about the endline (since we are talking about running). If the thrower is available and I forget to do this and she starts to run, then I am going to whistle her back immediately and "do over" correctly, because I screwed up.

If the thrower is not available, I am signaling spot, placing the ball on the floor and starting my count. If he/she runs, then it will be a violation.

This is the reason why my partners and I communicate how and where the ball will be put back into play on the endline, after the timeout (spot or run). Again, I speak for myself and the crew i will be working with for any game.