The weight class change deadlines is Feb 15th.
IPF rules do not allow weight class changes during weigh-in. If you do not make your delcared weight, you will compete as a Guest and not be eligible for cash prizes.
You do not need to submit a form if you are lifting in the Pro Deadlift or Grand Prix unless you are withdrawing.
You do not need to submit a form if you are lifting in the Pro Bench or Squat Challenge unless exceed the weight class from lightweight to heavyweight or unless you are withdrawing.