Any party wishing to challenge agency findings of fact shall specify which of the grounds above is relied upon and shall state the substance of his claim, including citations to the portions of the agency record he relies upon.
In such cases, the Council may take evidence itself or remand questions of fact to the agency for further proceedings, consistent with the 90 day time limit set forth in M.G.L. c. 164, § 69H1/2
In reviewing facts found by an agency, the Council shall give due weight to the experience, technical competence and specialized knowledge of the agency. Nothing in this section is intended to limit the authority of the Council to decide questions of fact not raised or decided in the context of the final decision of the agency.
980 CMR, § 11.05