In this chapter, the following terms have the meanings indicated. Terms Defined. “Agency” has the meaning stated in COMAR 12.11.02.02B. “Agency head” has the meaning stated in COMAR 12.11.02.02B. “Contested case” has the meaning stated in State Government Article, §10-202, Annotated Code of Maryland. “Department” has the meaning stated in COMAR 12.11.02.02B. Party. “Party” means a person, an agency, or another entity involved in the contested case. “Party” includes any other person, agency or legal entity which may be substantially affected by the outcome of the contested case. “Presiding officer” has the meaning stated in State Government Article, §10-202(g), Annotated Code of Maryland.