20. Middle school level. "Middle school level" means grade 6 to grade 8.

20-A.__Minor capital costs.__"Minor capital costs" means costs relating to plant maintenance, minor remodeling, site development or the purchase of land not in conjunction with a construction project.

A.__"Minor capital costs" does not include construction of new buildings or the purchase of land in conjunction with a school construction project.

B.__Expenditures to repay funds borrowed for minor capital expenditures must be considered minor capital costs in the year in which these funds are repaid.

C.__Purchase of land made in accordance with this subsection must be approved:

(1)__By the legislative body of the school administrative unit; and

(2)__By the commissioner, under rules adopted for this purpose.

21. Municipality. "Municipality" means a city, town or organized plantation.

21-A.__Portable, temporary classroom space.__"Portable, temporary classroom space" means one or more mobile or modular buildings that are at least partially constructed off site and that are designed to be moved to other sites with a minimum of disassembly and reassembly.

22. Per-pupil guarantee. "Per-pupil guarantee" means the total amount of funds that is made available for each subsidizable pupil representing the following cost components:

A. Salary and benefit costs for school level teaching staff;

B. Salary and benefit costs for other identified school level staff;

C. Designated costs for substitute teachers; and

D. Identified nonstaffing costs.