(a)    In this section, “capital expenditure” includes an expenditure for:

(1)    acquisition of land, buildings, or equipment; or

(2)    new construction.

(b)    At the end of a fiscal year, the unspent part of an appropriation for a capital expenditure made through the State budget or a supplementary appropriation act other than an enabling act for a general obligation loan:

(1)    does not revert to the General Fund; and

(2)    with the approval of the Board of Public Works, may be carried in a capital account until it is spent in accordance with subsection (c) of this section or until the authority to spend the appropriation for a project terminates.

(c)    Money carried in a capital account under subsection (b) of this section may be spent only for a capital purpose.

(d)    Unless otherwise provided by law, the authority to spend the appropriation for a project terminates:

(1)    2 years after the effective date of the appropriation act that authorizes the project, if:

(i)    evidence that a required matching fund will be provided has not been presented to the Board; or

(ii)    no part of the project is under contract and the Board has not encumbered money for any part of the project;

(2)    1 year after the latest of abandonment, completion, or acceptance of the project; or

(3)    except to the extent the Board has encumbered money for a State project or program authorized by an appropriation act, 7 years after the effective date of the appropriation act that authorized the project unless:

(i)    the appropriation act provides otherwise; or

(ii)    in an emergency, the Board unanimously grants a temporary exception for 1 year.