A.__Aroostook County, including up to 100 acres of trust land reserved for designation by the Aroostook Band of Micmacs and the Houlton Band of Maliseet Indians;

B.__The Androscoggin Valley region, including the Lewiston Enterprise Community area as designated by the Agriculture, Rural Development, Food and Drug Administration, and Related Agencies, Appropriations Act, Public Law 105-277 (1999);

C.__The Penobscot Valley region, including up to 500 acres of trust land reserved for designation by the Penobscot Nation; and

D.__The Washington County-Downeast region, including up to 500 acres of trust land reserved for designation by the Passamaquoddy Tribe.

The commissioner may designate up to 4 zones through the process established in section 5249.

2.__Requirements for designation.__The commissioner shall adopt rules establishing the minimum requirements for the designation of Pine Tree Development Zones.__Additionally, each participating municipality must:

A.__Designate the area of the Pine Tree Development Zone lying within its corporate limits as a municipal development district in which 10 years of municipal tax increment financing is provided to qualified Pine Tree Development Zone businesses equal to at least 100% of the real property tax increment resulting from the business's investment within the district following the district's designation; and

B.__Agree to maintain at least one prepermitted construction or development site available within the Pine Tree Development Zone on a continual basis throughout the term of the zone.

3.__Limitations.__The designation of Pine Tree Development Zones is subject to the following limitations:

A.__A Pine Tree Development Zone located in Aroostook County as described__in subsection 1, paragraph A may include only