From the NTR:

July 5th is the beginning of the evaluation period and here are some reminders of the procedures for that period:

• Clubs may hold tryouts, and evaluations.
• Clubs may discuss roles on a specific team with any player.
• Verbal offers are permitted but are non-binding.
• Clubs may NOT email, text, or call to follow up on verbal offers.
• During the Evaluation Window, no binding offers may be made and no payment or other consideration for the upcoming USAV club season may be accepted.