Upon completion of the review of allrelevant information, including petitions, by the Commission, the Department shall propose amendments to the List of Interchangeable Drug Products by issuing a Notice of Public Comment Period pursuant to M.G.L. c. 30A, §§ 2 and 3. The Department shall mail a Notice of Public Comment Period to each person who filed a petition during the period ending 30 days before the Notice of Public Comment Period is issued. In addition, the Department shall mail a Notice of the Public Comment Period to each person who has filed a written request therefore with the Department during December of the previous year pursuant to M.G.L. c. 30A, § 2.