It Depends on What the Meaning of the Term 'Infringement' Is

The letter does note that no action on the part of the CLEO is required, does not specify in what manner a CLEO should store the documentation, if they choose to do so, and asks that if the CLEO has any information that may disqualify any maker or transferee, including a responsible person of a legal entity, from making or possessing a firearm to provide that information to the NFA Branch. Of concern is that the letter does not specify the copies of the Form 1s and Form 4s that the CLEOs are receiving contain confidential tax information and should be treated as such. [More]

I guess "shall not be" wasn't clear enough.