Frequently Asked Questions

What is License Plate Recognition or Reader (LPR)?

LPR is an image-processing technology used to identify vehicles by their license plates. The technology is mounted on a vehicle, therefore parking enforcement officers can drive through public parking lots and public streets to monitor parking activity rather than walking and chalking tires. Chalking will stay in effect as a back-up to the LPR.

How does it work?

LPR systems use digital cameras and software to read license plate data and check that plate data against permitted vehicle lists and scofflaw lists.

How does the City of Longmont Parking Enforcement use LPR technology?

Parking Enforcement will utilize a LPR system to recognize vehicles in violation of over-time parking, scofflaw vehicles, stolen license plates and stolen vehicles. Stolen license plates and stolen vehicles will be reported to the Police Department.

What kind of information does it collect?

For parking enforcement purposes, the data collected would be:

  • Information on whether or not a vehicle has moved
  • A picture of the license plate which will help to determine the vehicle owner name and address
  • The picture also might show bent or scratched license plates and bumper stickers

How long are the records retained?

  • Data collected by the LPR system not resulting in a parking enforcement action or not part of an ongoing law enforcement investigation retained for 90 days by NuPark Management System.
  • Data resulting in parking enforcement action is retained for 180 days by NuPark Management System. Data associated with an ongoing law enforcement investigation or action is retained until the investigation or action is completed or resolved.
  • Data retained in the LPR system shall only be searched by LPR users who are authorized to do so, and all searches must be related to official law enforcement investigations, or actions only.

How accurate is the LPR technology?

LPR has a 95% accuracy reading.  A license plate scanner can capture thousands of tags per hour. Every time an image is captured, it is saved with the time, date, and location by GPS coordinates.  If the plate is returned with a read that has an incorrect plate number, the person running LPR will have the option to edit that bad read manually with the correct plate. 


Information for Parking Permit Holders

How does the LPR affect parking lot permits?

The LPR system will recognize parking lot permit holder’s license plates, excluding them from an over- time parking ticket as long as the permit holder has registered their owner and vehicle information with the LDDA. This includes all vehicles that the owner might park in the permitted lot.

What if I do not have a front license plate?

If your vehicle is registered in the state of Colorado, the state requires two plates to be displayed, one in the front and one in back of the vehicle. If you have a back-facing plate only, please park head-in so that the LPR system can read your registered license plate from the drive aisle. Failure to park head-in may result in a citation.

Will I receive a citation if my license plate is dirty or if I have a decorative plate cover?

As long as your plates are legal for driving, our system can read them.

What if I have a newly registered vehicle without a license plate?

Please enter the temporary license plate when registering your vehicle with the LDDA. Don’t forget to notify the LDDA when you receive your permanent plate.

What if I own/drive more than one vehicle?

Currently, individuals are allowed to register multiple vehicles with the LDDA. However, only one vehicle at a time is allowed to use the permit.

What if I have a loaner or rental car?

Permit holders are allowed to add or remove vehicles to their parking lot permits at any time, which includes loaner or rental cars. Once usage of this temporary vehicle has ended, you will need to notify the LDDA to remove it.