Source...Maryland State has a network of technical security databases which access the databases of all other states who comply and coordinate with them. For states who do not willfully comply, or those who are not set up to align technically, Maryland mines data from various LEO systems.
Maryland has a rather innocuous sounding name for the intelligence hub which contains this data, it's called Maryland Coordination and Analysis Center.
The intelligence analysis hub has access to, and contains, Florida's CCW list (among other identification systems) and mines the state's database systems for vehicle plate numbers of the holders. These license plate numbers are then stored in a cross referencing database within the Maryland Coordination and Analysis Center.
The database is directly connected to another Maryland technological system - Their ALPR (Automatic License Plate Reader) system is synergized with the MCAC Hub.
Every time one of the flagged license plates are detected by the ALPR an alert is generated...