Well actually it was signed yesterday.
Bans carry even with a wear and carry permit, with 100 yards of a place of gathering, including the parking lot. Places of gathering now include churches, schools, county buildings, county parks, libraries, rehab homes, day care centers, convention centers etc etc. It pretty much makes it impossible to carry in the county, you can still transport under the state law, aka locked up and unloaded.
If your not a member of Maryland Shall Issue and live in the state of maryland shame on you. Yes they will be filing a law suit against it shortly, thats why you should join MSI, to help support them as they are the only one really doing anything in Maryland against the infringement of 2A rights.