(6)__Financial participation in any economic development project organized or funded on a regional basis by 2 or more political subdivisions or state or federal agencies.__For this purpose, the county commissioners may provide assistance to a regional project to be located in whole or in part outside of Piscataquis County only upon a finding by the commissioners that the project will confer a substantial economic benefit on Piscataquis County;

(7)__Funding the annual salary and operating expenses of a county economic development officer, development agency or development office; and

(8)__Necessary contractual services for any of the purposes stated in this paragraph.

B.__All borrowing by the county commissioners for the purposes of this section is subject to the following limitations.

(1)__All bonds issued by the county commissioners for the purposes of this section must be approved prior to issuance by the voters of Piscataquis County by referendum vote in accordance with section 938, except that a referendum for this purpose may be conducted at any regular or special county election at which the total number of votes cast for and against the proposed bond issue is equal to at least 50% of the total number of votes cast in Piscataquis County for all gubernatorial candidates in the most recent gubernatorial election.

(2)__The aggregate unpaid principal amount of all bonds issued under this section may not exceed 2% of the most recent taxable valuation of Piscataquis County, as certified by the State Tax Assessor pursuant to Title 36, section 381, adjusted to 100%.

(3)__Debt may not be incurred or bonds issued under this section if such debt or bonds, in combination with other county debt then outstanding, would cause Piscataquis County to exceed limitations on total county debt otherwise provided by law.