Don't know the NFHS restrictions but in NCAA the defender can continue "chucking" the receiver all the way down the field as long as the receiver is not on the same yardline as the defender or gone past the defender or the ball has been passed.

This is an imprtant distinction for a place that is transitioning from NFL to NCAA rules as the NFL rules are much more restrictive.

NFHS Rules and NCAA Rules are basically the same. NFHS states when he is "no longer a potential blocker" whereas the entire NCAA Rule reads

c . Defensive players may use hands and arms to push, pull, ward off or
lift offensive players obviously attempting to block them. Defensive
players may ward off or legally block an eligible pass receiver until that
player occupies the same yard line as the defender or until the opponent
could not possibly block him. Continuous contact is illegal (A.R.
9-3-4-I, II and IV).

My interpretation and more importantly, Rogers Redding's is once the eligible receiver get even with or past the d-back contact was illegal.

Would an eligible receiver on a crossing route be subject to a linebacker blocking?

My point is that this statement is not factually accurate when it comes to NCAA. It IS legal to give the receiver a "chuck" to knock them off their route as long as the previous exceptions I mentioned do not apply. The receiver crossing in front of the LB is vulnerable to the "chuck" as he is typically a yard or more in front of the defender.

change of subject
 

guys, a new doubt came up (zys is a much better doubt creator then I am)...

post scrimmage kick

I realize PSK applies to fouls that happens by team B during team A kicks. And reading the book I couldn't find something that would tell me that roughing/running into the kicker would not be PSK fouls.

Help please?

1. For kicks, the NFHS refers to the teams as 'K' and 'R'.

2. PSK requires not only that the foul occur after the kick, but also beyond the expanded neutral zone. Roughing/running into the kicker occur behind the neutral zone, so do not receive PSK enforcement.

PSK fouls occur beyond the LOS.
Roughing the kicker usually occurs behind.

Roughing the kicker can only occur behind the LOS, otherwise, it is an illegal kicking.

For what it's worth (and unless I am mistaken)...Mr Vasques is translating the NCAA code for use in Brazil. When folks try to help him with some of the confusion he is running into, we need to remember it is the NCAA code and try not to confuse further by referring to NFHS code/protocols/etc

Yes, Mike, that's me translating to portuguese and Zys is a friend of mine who's also helping the process. We're done translating and are now just checking the book again so some doubts are coming up.
I know this is a very strong NFHS forum and I appreciate all the help I'm getting, but I am working with NCAA rules.

It is absolutely a STRONG NFHS forum. It was one of the first places on the internet when refs started gathering online about 10 years ago and the membership here has demonstrated time and time again an incredible depth of understandingof NFHS rules, policies, etc It also has guys from probably one of the largest number of different states of any internet ref forum around.

An equally strong site for NCAA discussions is NCAA Rules Discussion You are going to get a much wider variety of opinion and explanation on NCAA rules there than you can get here as the NCAA numbers here are relatively small.

So, they do make stuff up just for kicks!