On March 13, 2022 @ 1036 hrs. Station 3 was alerted for an MVA with injuries WB Rt50 prior to Rt213 in the 3-73 Box. Officer 304 (Nash) was traveling EB in his POV when he came upon the three vehicle crash, advising Queen Anne to alert Station 3. Rescue 3 and Chief 3 responded with 7 members. Officer 304 advised with WB Rt50 shutdown, for equipment to proceed EB in the WB lane to access the scene. Officer 304 requested 2 additional transport units bringing the total to 3. Three patients were transported to Queen Anne ER for treatment. Scene was later turned over to the Maryland State Police. Officer 304 had command