[Hawks Coach]

Does the rule book distinguish between screens and rebounds - in short, yes. Look in your book, or read below.

4-36: Rebounding
Rebounding is an attempt by any player to secure possession of the ball following a try or tap for goal. In a rebounding situation there is no player or team control.
ART. 2 . . . To obtain or maintain legal rebounding position, a player may not:
a. Displace, charge or push an opponent.
b. Extend shoulders, hips, knees or extend the arms or elbows fully or partially in a position other than vertical so that the freedom of movement of an opponent is hindered when contact with the arms or elbows occurs.
c. Bend his/her body in an abnormal position to hold or displace an opponent.
d. Violate the principle of verticality.
ART. 3 . . . Every player is entitled to a spot on the floor, provided such player gets there first without illegally contacting an opponent.

4-39
ART. 1 . . . A screen is legal action by a player who, without causing contact, delays or prevents an opponent from reaching a desired position.
ART. 2 . . . To establish a legal screening position:
a. The screener may face any direction.
b. Time and distance are relevant.
c. The screener must be stationary, except when both are moving in the same path and the same direction.

Clearly, the definition for rebounding works under a different set of standards than screening. Screening specifically says you must be stationary, rebounding does not - you can move to stay in front of someone on a rebound, you just can't dislodge them from a position that they legally hold.

Also, I would say that refs tend to use the rebound rules on a ball going OOB. It makes sense to apply those guielines, because the player being impeded is attempting to get to the ball (as in a rebound), rather than to a player they are guarding or a spot on the floor (as in a screen). It is not clear that this is the way the rules are written, but I like that interpretation myself. It seems the most logical application of the rules as written.