E. The complete restoration of existing school buildings in lieu of replacement when in the judgment of the commissioner the action is in the best interest of the State and local unit; and

F. Off-site construction may only be included within the meaning of this term if, in the judgment of the commissioner, it is economically in the best interests of the State or there is no other practical way to complete a project.

"School construction project" does not mean the purchase, lease- purchase or construction of portable temporary classroom space, as defined in section 15603 15672, subsection 19-A 21-B, the lease-purchase of bus garage and maintenance facilities, as defined in section 15603, subsection 6-A or a permanent space lease-purchase project as defined in section 15901, subsection 4- B.

Sec. B-13. 20-A MRSA §15901, sub-§4-A, as amended by PL 1991, c. 268, §6, is further amended to read:

4-A. Small scale school construction project. "Small scale school construction project" means a project that will not be eligible for state subsidy and is limited to:

A. New buildings not exceeding 600 square feet in gross area to be utilized solely for storage or custodial work, or both; or

B. On-site additions to existing school buildings not exceeding 600 square feet in gross area.

"Small scale school construction project" does not mean the purchase, lease-purchase or construction of portable temporary classroom space, as defined in section 15603 15672, subsection 19-A 21-B, or the lease-purchase of bus garage and maintenance facilities, as defined in section 15603, subsection 6-A .

Sec. B-14. 20-A MRSA §15901, sub-§4-B, as enacted by PL 1999, c. 81, §7, is amended to read:

4-B. Permanent space lease-purchase project. "Permanent space lease-purchase project" means the lease-purchase of permanent administrative space or permanent small nonadministrative or instructional space whose costs are wholly