CHP E-plate ranges

[mac88chp]

While there are certain plate number ranges associated with certain build years, plates themselves were not assigned in strict numerical order within build years.

The most definitive document to establish where a unit was stationed is the CHP Assignment Card which is hard to impossible to obtain. You may get lucky if an in-service photo or some other agency documentation can be found to associate the unit to a location. Otherwise, it can be tough to establish this information.