Link to pre register is here! This is done through the montgomery county department of health and human services.
link with more info is here: https://www.montgomerycountymd.gov/covid19/vaccine/?utm_content=buffer65b3a&utm_medium=social&utm_source=facebook.com&utm_campaign=buffer&fbclid=IwAR0JUG4gQObHmrlRLCABtvTdis67sV-DDgAhEvr601b1z1lYT-YjtM0wJPU