To comply with internationally agreed practices, Canada and the U.S. have been eliminating overlapping coverage of electronic navigational charts (ENCs). New changes will soon take effect in the Great Lakes. Under the new ENC coverage scheme, each country is changing their areas of coverage, so that only one country’s ENC is available for any given area at a particular scale. View the changes.
These changes come into effect 0000 Coordinated Universal Time (UTC), on 22 February, 2013.
December 18, 2012