Data are reported by industry and compiled by Environment Canada. Database is replicated. All data is accessible except that which has been granted confidential status under the Access to Information Act. Environment Canada assumes no responsibility for loss suffered as a result of the use of this data. Coverage is complete.
Coverage is uniform.
Coverage is complete. Coverage is not uniform. Data may or may not have been audited. Legislated reporting criteria may change from year to year. Documents listed do not provide guidance for using NPRI data.