Civilianised Parking Enforcement (CPE) involves councils enforcing on-street parking rules instead of the police.
The council said income from penalty charge notices was used to fund the parking enforcement service.
Parking enforcement in Gloucestershire is to be run by a private company rather than the six district councils.
If Devon County Councillors vote in favour of centralising parking enforcement the measures would take effect from April 2014.
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Parking is the responsibility of the city council's civil parking enforcement department.
But since the city sold its metered parking to a group of private investors led by Morgan Stanley last year, the level of rage in the city over hikes in parking-meter rates and aggressive parking enforcement has gone way up.
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Shane Rogers, manager of the Last Ink Impressions tattoo shop, said he thought the whistles were a "really, really good idea" because local paid parking and its enforcement was "killing the town".
Local authorities would have to report to ministers every year on the enforcement of disabled parking bays in their area.
Mr Ferguson also called for greater enforcement against drivers parking on cycle lanes and drivers who stop in the cycle-only area by traffic lights.
That total does not include revenue from parking fines, which are administered by traffic-enforcement officers and the police department, and would not be part of the city's privatization push, officials said.
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The app was not promoted to the public, but it was used internally between The Super Bowl Host Committee, New Orleans law and traffic enforcement, the Downtown Development District, and parking operators to monitor parking availability and traffic around the dome.
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Other employees misused a confidential law-enforcement computer to find out who had taken their parking spaces.
In North Somerset, the council enforces parking bays both on and off-road, but the enforcement of both single and double yellow lines remains with the police.
The Conservative-led authority hopes the move will lead towards a more consistent approach to enforcement and will free money to be spent on parking, roads and local transport.
Authorities also searched the suspect's car in the parking lot of the movie theater and found more magazines and ammunition, a federal law enforcement official said.
The proposals would also see the council "more actively pursue bus lane enforcement" to raise money for environmental, highways and transport improvements, make changes to city centre parking prices.
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