(a) In complaint or investigation proceedings, the Commission shall give notice of hearing not less than ten days before the date of hearing, unless it be found that public necessity requires hearing at an earlier date. Comparable notice ordinarily will be given when hearings are held in application proceedings. (See P.U. Code Section 1704.)
(b) Whenever any electrical, gas, heat, telephone, water, or sewer system utility files an application to increase any rate, the utility shall give notice of hearing, not less than five nor more than 30 days before the date of hearing, to entities or persons who may be affected thereby, by posting notice in public places and by publishing notice in a newspaper or newspapers of general circulation in the area or areas concerned, of the time, date, and place of hearing. Proof of publication and sample copies of the notices shall be filed at or before the hearing.
(c) In addition to the notice required by this rule, parties shall provide such notice of hearing as the presiding officer may designate. Sample copies of the notices shall be filed at or before the hearing.
In a complaint proceeding petitions to intervene and become a party thereto shall be in writing, shall set forth the grounds of the proposed intervention, the position and interest of the petitioner in the proceeding, and whether petitioner's position is in support of or opposition to the relief sought. Such a petition shall be served and filed by petitioner at least five days before the proceeding is called for hearing, except for good cause shown. If petitioner seeks a broadening of the issues and shows that they would not thereby be unduly broadened, the petition shall be served and filed by petitioner at least ten days, and the parties may serve and file replies at least five days, before the matter is called for hearing.
Leave will not be granted except on averments which are reasonably pertinent to the issues already presented, but do not unduly broaden them. If leave is granted, the petitioner thereby becomes an intervener and a party to the proceeding to the degree indicated by the order allowing intervention, or by the presiding officer at the hearing.
In an investigation or application proceeding, or in such a proceeding when heard on a consolidated record with a complaint proceeding, an appearance may be entered at the hearing without filing a pleading, if no affirmative relief is sought, if there is full disclosure of the persons or entities in whose behalf the appearance is to be entered, if the interest of such persons or entities in the proceeding and the position intended to be taken are stated fairly, and if the contentions will be reasonably pertinent to the issues already presented and any right to broaden them unduly is disclaimed.
A person or entity in whose behalf an appearance is entered in this manner becomes a party to and may participate in the proceeding to the degree indicated by the presiding officer.
Proceedings involving related questions of law or fact may be consolidated.
A motion to dismiss (other than a motion based upon a lack of jurisdiction) any proceeding before this Commission, which is based upon the pleadings or any matter occurring before the first day of hearing may only be made upon five days' written notice thereof duly filed and served upon all parties to the proceeding and all other parties upon whom service of copies of the pleadings are therein shown to have been made.
In hearings on complaints, applications and petitions, the complainant, applicant, or petitioner shall open and close. In hearings on investigation proceedings where filed rates or rules which do not result in an increase have been suspended, the respondent shall open and close. In other investigation proceedings, the Commission's staff shall open and close. Intervenors shall follow the parties in whose behalf the intervention is made. The presiding officer, where circumstances warrant, may vary the order of presentation.
To avoid unnecessary cumulative evidence, the presiding officer may limit the number of witnesses or the time for testimony upon a particular issue.