combustion equipment that must report criteria air contaminants if the release thresholds are met (regardless of employee hours) The facility is a pipeline installation Facility owners and operators report their substances by using the tools found on the on-line reporting software known as the Single Window reporting module. This software guides users through a comprehensive questionnaire in order to organize and set up their annual report. References External links 1. The Canadian Environmental Protection Act, 1999 and the National Pollutant Release Inventory. 2. Canada Gazette, Notice with Respect to Substances in the National Pollutant Release Inventory. 3. Single Windows 4. Data Highlights 5. Environment Canada NPRI Website Pollutant release inventories and registers Environment and Climate Change Canada Environment of Canada Pollution in Canada 1992 establishments in Canada