(a) Submissions in the form of briefs are required for consideration of all petitions. The parties must adhere to the briefing schedules and other requirements set forth in this article.

(b) Upon receipt of a perfected petition, the Chief of Board Proceedings will provide written notification to each party that a perfected petition has been filed and that briefing will begin under the applicable briefing schedule, as determined by the Chief of Board Proceedings. The notification may be included, if appropriate, in the acknowledgement letter issued under section 5336, subdivision (b). Throughout the briefing schedule, the Chief of Board Proceedings will inform the parties of applicable deadlines, extensions, and other requirements by written notification, and will ensure that all parties receive copies of any correspondence.

(c) Any request to extend the period for filing a brief must be in writing. The Chief Counsel, in his or her discretion, may grant such a request upon a showing of reasonable cause or based upon the written agreement of the parties and the Appeals Attorney.

(d) The party filing a brief is responsible for submitting one copy of the brief and any supporting exhibits to the Board Proceedings Division. Upon receipt of any brief filed within the scope of the applicable briefing schedule, including any applicable deadlines and extensions, the Chief of Board Proceedings will provide written acknowledgement of receipt to all parties and provide each opposing party with a copy of the brief and any supporting exhibits.

(e) General Requirements. All briefs permitted to be filed under this section must follow the requirements listed below:

(f) The failure to file a brief within the scope of the applicable briefing schedule, including any applicable deadlines, extensions, and other requirements, is a waiver of the right to file that brief. Such a failure will also conclude the briefing schedule, except as otherwise provided in the applicable briefing schedule.

(g) Any individual or entity may file a non-party (amicus) brief regarding a petition or application described in section 5310, subdivision (a)(2), (a)(3), or (a)(4), subject to any generally applicable conditions of this section and the specific conditions of this subdivision.