Apply for a permit to carry out temporary work causing a discharge of pollutants into the air or of water into a sewer

Last updated March 17, 2023

Is your company planning to carry out occasional work that may emit pollutants into the atmosphere or require a discharge into the sewer, with or without treatment? Before starting the work, you must get a permit and meet certain requirements. Find out everything you need to know.

Apply for a permit

  • Complete the permit application (see the section entitled « Documents »).
  • Complete Appendix A, which applies to most work operations. 
  • Complete the other appendices adapted to the work, if applicable. 

Transmit the completed and digitally signed application and the associated appendices.

Guidelines to meet


  • Please provide all the required information so as to avoid any delays in processing your application.
  • Any mailing in paper format or digitized in image format will be refused.

You must receive your permit prior to beginning the work.


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