Section 6-420 - Issuance of complaints and orders(a) The Department shall issue a written complaint if the Department has reasonable grounds to believe that the person to whom the complaint is directed has violated: (2) Any rule or regulation adopted under this subtitle; or(3) Any order, permit, or certificate issued by the Department under this subtitle.(b) A complaint issued under this section shall:(1) Specify the provision that allegedly has been violated; and(2) State the alleged facts that constitute the violation.(c) After or concurrently with service of a complaint under this subtitle, the Department may:(1) Issue an order that requires the person to whom it is directed to take corrective action within a time set in the order;(2) Send a written notice that requires the person to whom it is directed to file a written report about the alleged violation; or(3) Send a written notice that requires the person to whom the notice is directed: (i) To appear at a hearing held in accordance with the Administrative Procedure Act before the Department at a time and place the Department sets to answer the allegations of a complaint; or(ii) To file a written report and also appear at a hearing held in accordance with the Administrative Procedure Act before the Department at a time and place the Department sets to answer the charges in the complaint.(d) Any order issued under this section is effective immediately, according to its terms, when it is served.