The commissioner shall:
1. Community participation. Encourage persons in local communities to participate in the provision of supportive services for persons with intellectual disabilities or autism, so that persons in the community may have a better understanding of the need for those services;
2. Financial assistance. When offering assistance to community-based programs, follow the procedures set forth in this Article; and
3. Rules. Adopt rules, according to the Maine Administrative Procedure Act, Title 5, chapter 375, relating to the administration of the services authorized by this article and adopt major substantive rules, according to Title 5, chapter 375, subchapter 2‑A, relating to rate setting pursuant to Public Law 2005, chapter 12, Part BBBB and Public Law 2005, chapter 519, Part CCC.