As
@maus92 said, all NRP operations are encrypted. They encrypted their talkgroups earlier this year.
VHF is no longer in operation in the Baltimore/Chesapeake Bay area.
The only potential area that I could potentially see VHF still in service would be southern MD as they just went live on their talkgroups late last year but with them encrypting their talkgroups this year, I doubt they are still patched together.