In this chapter, the following terms have the meanings indicated. Terms Defined. “Agreed on Waiver” means a waiver based on an agreement to reduce recurring costs pursuant to Education Article §5-202(d)(9). “County” means the county governing body and includes the Mayor and City Council of Baltimore City. “Department” means the State Department of Education. “Education effort” means a county’s appropriation to the local school system divided by the county’s wealth, as defined in Education Article, §5-202(a)(14), Annotated Code of Maryland. “Five-year moving average of education effort” means the simple average of a county’s education effort for the five preceding years. “Highest local appropriation” means the total amount of a county's appropriation to the school operating budget for a fiscal year and includes all items related to the ongoing education functions of the public schools. “Impeded Ability Waiver” means a waiver for a fiscal year pursuant to Education Article, §5-202(d)(8), Annotated Code of Maryland. “Local board” means the local board of education and includes the Board of School Commissioners of Baltimore City. “Local wealth per pupil” means a county’s wealth divided by the county’s full-time equivalent enrollment. “Rebasing Waiver” means a waiver to rebase maintenance of effort permanently pursuant to Education Article, §5-202(d)(10), Annotated Code of Maryland. “Statewide 5-year moving average of education effort” means the simple average of the 5-year moving average of education effort for the 24 local school systems. “Supplemental” means expenditures that are in excess of the original appropriation to the regular school operating budget that qualify as nonrecurring costs.