Indiana Code Title 8. Utilities and Transportation § 8-9.5-8-10

(1) after obtaining the approval of the commissioner of the Indiana department of transportation;

(2) after the general assembly has, based on the recommendations of the commissioner of the Indiana department of transportation, provided for the issuance of the bonds by establishing in an act the maximum aggregate principal amount of bonds that the authority may issue;

(3) after the authority has delivered to the budget agency a written guarantee that the aggregate amount of attorney's fees for the particular proposed bond issue will not exceed two-tenths of one percent (0.2%) of the principal amount of the proposed issue of toll road and toll bridge bonds;  and

(4) with the approval of the budget committee, the budget agency, and the governor.