In this chapter, the following words have the meanings indicated. Terms Defined. “ACH Credit” means a transaction through the Automated Clearing House Network originated by a participating employer to transmit payment of member contributions to an account at a financial institution designated by the Retirement Agency. “ACH Debit” means a transaction through the Automated Clearing House Network originated by the Retirement Agency to remove member contributions from a financial institution designated by a participating employer for payment into an account at a financial institution designated by the Retirement Agency. “Local employer” means a county board of education or the Baltimore City Board of School Commissioners. “Participating employer” has the meaning set forth in COMAR 22.01.01.01B(11). Participating Governmental Unit. “Participating governmental unit” means a governmental unit that participates in a State system under State Personnel and Pensions Article, Title 31, Annotated Code of Maryland. “Participating governmental unit” includes a governmental unit that has withdrawn from participation in a State system in accordance with State Personnel and Pensions Article, Title 31, Subtitle 3, Annotated Code of Maryland, but has employees that continue to participate in a State system. “Supporting payroll data” means the information required to be provided by a participating employer for each member of a State system as each payroll is paid in accordance with Regulation .02 of this chapter.