I know you cannot park large commercial vehicles (e.g., a landscaping truck or a food truck) in your driveway in Montgomery county:
https://www.montgomerycountymd.gov/goodneighbors/
I also know you cannot park large commercial vehicles on the street in residential neighborhoods in DC:
https://ddot.dc.gov/service/commercial-vehicles#:~:text=Commercial%20vehicles%20can%20be%20ticketed,permit%20during%20off%2Dpeak%20hours
Can you park a large commercial vehicle in your driveway or backyard in a DC residential neighborhood?