Cashless tolling is now on every MTA-operated bridge in the city.
The cameras and sensors go live on the Whitestone and Throgs Neck bridges at 3 a.m. Saturday.
They were the final two MTA-operated bridges to be updated with the technology, three months ahead of schedule.
Toll booths have been replaced with cameras and E-Z Pass sensors that automatically charges the tags.
The cameras are used to photograph license plates and mail a bill directly to the registered address.