42 CFR § 423.2024 - Objections to the issues.
(a) If an enrollee objects to the issues described in the notice of hearing, he or she must notify the ALJ in writing at the earliest possible opportunity before the time set for the hearing, and no later than 5 calendar days before the hearing, except for expedited hearings in which the enrollee must submit written or oral notice of objection no later than 2 calendar days before the hearing. OMHA must document all oral objections in writing and maintain the documentation in the case files.
(b) The enrollee must provide the reasons for his or her objections.
The following state regulations pages link to this page.