Section 6. Estimated useful life of projects.
The General Assembly states that the estimated useful life of the transportation assistance projects heretofore itemized is as follows:
(1) Rolling stock, 15 years.
(2) Passenger buses, 12 years.
(3) Furniture and equipment, 10 years.
(4) All other projects, 30 years.
The maximum term of the debt authorized to be incurred hereunder is 30 years.