Section Pas 204.05 - Intervention(a) A petitioner shall state with particularity in his or her petition for intervention the following:(1) The petitioner's interest in the subject matter of the hearing;(2) The petitioner's position with respect to the subject matter of the hearing;(3) Why the interests of the parties and the orderly and prompt conduct of the proceeding would not be impaired; and(4) Any other reasons why the petitioner should be permitted to intervene.(b) Petitions for intervention shall be granted any time during the proceeding if the petitioner has a substantial interest in the proceeding and granting the petition is in the interest of justice, and if granting intervention will not unduly delay the board's proceeding.(c) Once granted leave to intervene, an intervenor shall take the proceeding as he or she finds it and no portion of the proceeding shall be repeated because of the fact of intervention.N.H. Admin. Code § Pas 204.05