(a) Any intervening party, or proposed intervening party, shall file an answer, counterpetition, or response within 30 calendar days of petition filing. For good cause shown, the administrative law judge may extend the time for filing an answer, counterpetition, or response for a period not to exceed an additional 20 days.
(b) The answers filed by intervenors, whether counterpetitions or responses, shall address the factors specified in this chapter and all related issues raised in the petition.