Agreement Between the Government of the United States of America and the Government of Canada on Air Quality Document type Bilateral Field of application Regional/restricted Date Mar 13, 1991 Source FAO, FAOLEX; IUCN (ID: TRE-160040) Place of adoption Ottawa Language English Entry into force Mar 13, 1991 Subject Air & atmosphere Keyword Transboundary effects Climate change Acid precipitation Long-range air pollution Monitoring Air quality/air pollution Public health Emission standards Ozone layer Dispute settlement Research Emissions Geographical area North America Abstract In 1991, the U.S. and Canada entered into an agreement to address transboundary air pollution, whereby pollutants released at one location can travel long distances, affecting air quality at their sources, as well as many miles away. The 1991 Agreement led to reductions in acid rain in the 1990s, and was expanded in 2000 to reduce transboundary smog emissions under the Ozone Annex. (Source: http://www.epa.gov/airmarkets/programs/us-canada.html) Full text English Website www.epa.gov Country/Territory/Participant See Expanded View Show Map Countries Entry into force Ratification * Canada Mar 13, 1991 Mar 13, 1991 [6] United States of America Mar 13, 1991 Mar 13, 1991 [6] * [1] Ratification [2] Accession/approbation [3] Acceptance/approval [4] Succession [5] Consent to be bound [6] Definite signature reset zoom out zoom in References - Treaties Cites Convention on Long-Range Transboundary Air Pollution Treaty | Multilateral | Geneva | Nov 13, 1979 Keyword: Education, Data collection/reporting, Standards, Technology transfer, Air quality/air pollution, Research, Emissions, Long-range air pollution, Transboundary effects, Air pollution (non-stationary sources), Dispute settlement, Pollution control, Enforcement/compliance, Air pollution (stationary sources), Monitoring, Ozone layer Source: IUCN (ID: TRE-000529) Protocol amending the 1978 Agreement Between The United States of America and Canada on Great Lakes Water Quality, as amended on October 16, 1983 Treaty | Bilateral | Ottawa | Oct 2, 2009 Keyword: Coastal zone management, Data collection/reporting, International agreement-text, Inland waters, Freshwater quality/freshwater pollution, Pollution control Source: FAO, FAOLEX; IUCN (ID: TRE-148621) Amended by Ozone Annex to the Air Quality Agreement Treaty | Bilateral | Washington | Dec 7, 2000 Keyword: Long-range air pollution, Public participation, Public health, Ozone layer, Renewable energy, Transboundary effects, Emissions trading, Emissions, Air quality/air pollution, Research, Monitoring Source: FAO, FAOLEX; IUCN (ID: TRE-160041) Cited by Ozone Annex to the Air Quality Agreement Treaty | Bilateral | Washington | Dec 7, 2000 Keyword: Long-range air pollution, Public participation, Public health, Ozone layer, Renewable energy, Transboundary effects, Emissions trading, Emissions, Air quality/air pollution, Research, Monitoring Source: FAO, FAOLEX; IUCN (ID: TRE-160041)