A parking ban has been put in effect for parts of Waterloo on Friday and Saturday night.
It comes as thousands are expected to be on the streets for unsanctioned St. Patrick's Day parties.
Parking will not be permitted overnight in the MacGregor Albert, Northdale or Uptown neighbourhoods of Waterloo.
That borders the area of Westmount Road, Columbia Street, Weber Street, and Erb Street.
Registered vehicles can still park in Waterloo's Station Lot and the Waterloo Town Square North and South Lots.