In this chapter, the following words have the meanings indicated. Terms Defined. “Alternate payee” means a former spouse named in an eligible domestic relations order that the Retirement Agency has accepted for administration pursuant to a notice of administration issued in accordance with State Personnel and Pensions Article, §21-502, Annotated Code of Maryland, and COMAR 22.01.03.04. “Participant” has the meaning set forth in COMAR 22.01.01.01B. “Payee” means a participant or alternate payee.