Alternating Possession

[Nevadaref]

Originally posted by Camron Rust

OOB (by being first touched by a teammate who is OOB...this is NOT a throwin violation)


Also, the throwin ends only when the ball is touched inbounds, not OOB.

Camron,
My answers are for NFHS play.
Your first statement is certainly covered by the throw-in provisions and appears to be a THROW-IN violation:
9-2-10
Violations and Penalties
Throw-in provisions
"A player shall not violate the following provisions governing the throw-in."
"No player shall be out of bounds when he/she touches or is touched by the ball after it has been released on a throw-in pass."

Your second statement is accurate only for non-AP throw-ins, but since AP throw-ins also end when the throwing team violates, A2 touching the ball while OOB would end that throw-in.