Since this due process argument was not addressed during the course of the hearing or in the committee's order, it was improperly included in the motion for rehearing and was therefore not properly raised on appeal. In re Appeal of Working on Waste, 133 N.H. 312, 315-16, 577 A.2d 403, 406 (1990). Nonetheless, the CRR claims that its objections as to the constitutionality of RSA 162-F:15, II (Supp. 1989) would have been merely pro forma since the committee lacked the authority to declare the statute unconstitutional.