N.Y. Public Service Law § 145
* § 145. Conduct of hearing. 1. The hearing shall be conducted in an expeditious manner by a presiding examiner appointed by the department. An associate hearing examiner shall be appointed by the department of environmental conservation prior to the date set for commencement of the public hearing. The associate examiner shall attend all hearings as scheduled by the presiding examiner and he shall assist the presiding examiner in inquiring into and calling for testimony concerning relevant and material matters. The conclusions and recommendations of the associate examiner shall be incorporated in the recommended decision of the presiding examiner, unless the associate examiner prefers to submit a separate report of dissenting or concurring conclusions and recommendations. The testimony presented at a hearing may be presented in writing or orally. The board may require any state agency to provide expert testimony on specific subjects where its personnel have the requisite expertise and such testimony is considered necessary to the development of an adequate record. A record shall be made of the hearing and of all testimony taken and the cross-examinations thereon. The rules of evidence applicable to proceedings before a court shall not apply. The presiding examiner may provide for the consolidation of the representation of parties, other than governmental bodies or agencies, having similar interests. In the case of such a consolidation, the right to counsel of its own choosing shall be preserved to each party to the proceeding provided that the consolidated group may be required to be heard through such reasonable number of counsel as the presiding examiner shall determine. Appropriate regulations shall be issued by the board to provide for prehearing discovery procedures by parties to a proceeding, consolidation of the representation of parties, the exclusion of irrelevant, repetitive, redundant or immaterial evidence, and the review of rulings by presiding examiners.