Each year thousands of motor, sailing and personal watercraft vessels, enjoy the waterways of the Maryland Chesapeake Bay and its tributaries. Be it for pleasure or for work, vessels are subject to many obstacles that are associated with boating. Have you ever wondered though - what happens when an emergency happens on the open water? If you’re located on the waters of the upper Chesapeake Bay or its tributaries, chances are Marine Emergency Team 21 will be involved in helping you.