In connection with any action alleging a violation of a Commission regulation, any person claiming the benefit of any exception or permit under this Code shall have the burden of proving that the exception or permit is applicable and was valid and in force at the time of the alleged violation.

Any person asserting self-defense as justification for violation of a Commission regulation shall have the burden of proving that he acted under a good faith belief that he was protecting himself or other persons from imminent bodily harm or serious injury.