Marked vehicles can be identified by the numbered license plates. Two, three and four digit plates show the precinct number followed by the car number. So a plate bearing the number 55 is assigned to Precinct-5 and is car-5; where plate 190 is precinct-19 car-0. Vehicles outside the standard precinct structure, i.e. Freeway Patrol, and Motorcycle Patrol also follow this pattern, where their unit is given a unique "precinct" number. For example, Freeway Patrol cruisers start with 6. Community Liaison cruisers begin with 3. Marked vehicles with a four digit starting in "9" are "mid-watch" assignments with the same pattern for their respective precinct.