Maryland Md WCC Request To Imp lead A Party H-33r (print Only) is a legal document that is used when a party is requesting to join an existing civil case in the Maryland Workers’ Compensation Commission. This form is used to add a third party that is not originally named in the case, either as a defendant or a plaintiff, for the purpose of bringing a claim against that party or being held responsible for another party’s claim. This form must be printed and physically signed by the party making the request and then filed with the Commission. There are two types of Maryland Md WCC Request To Imp lead A Party H-33r (print Only): Request to Imp lead a Party as a Defendant and Request to Imp lead a Party as a Plaintiff.