Section Box 206.15 - Parties, Intervenors, and Complainants(a) License applicants requesting a hearing in response to a notice of license refusal and licensees who are the subject of a pending commission action against a license held, pursuant to RSA 285:12,I and appellants to a decision or order of the commission, pursuant to RSA 285:12,II, shall be parties to the adjudicative proceeding.(b) Any person may intervene in a matter pending before the commission under the provisions of RSA 541-A:32.(c) The presiding officer shall grant petitions for intervention, if, in accordance with the provisions of RSA 541-A:32: (1) The petition is submitted in writing to the presiding officer, with copies mailed to all parties named in the notice of hearing, at least 3 days prior to the hearing;(2) The petition demonstrates that the petitioner's rights, duties, privileges immunities or other substantial interests may be affected by the proceeding or that the petitioner qualifies as an intervenor under any provision of law, and(3) The presiding officer determines that the interests of justice and the orderly and prompt conduct of the proceedings would not be impaired by allowing the intervention.(d) Unless granted intervenor status, witnesses or person(s) filing complaints to the commission or the department about the conduct of a party under the commission's jurisdiction, shall not be parties to any enforcement or disciplinary hearings.N.H. Admin. Code § Box 206.15