The Department may intervene in certain proceedings in this State that are conducted by regional, State, interstate, and federal agencies. Among these are proceedings in connection with the adoption or amendment of plans; the initiation, modification, or abandonment of major public improvements; the adoption, amendment, or enforcement of regulations; and the granting, modification, or revocation of licenses or permits. The Department may participate in these proceedings through correspondence, through attendance or testimony at meetings or hearings, through legal argument, or in any other appropriate manner.
Md. Code Regs. 34.03.01.04