To realise a seamless electronic navigational chart (ENC)
coverage, countries are addressing overlap issues along their
shared international borders. As the first step, NOAA and the
Canadian Hydrographic Service have harmonised the Pacific ENCs,
effective 15th December 2011.
The first areas affected by the changes include Strait of Juan
de Fuca, Haro Strait and Boundary Pass. Throughout 2011 and 2012,
the United States and Canada will continue to resolve ENC overlaps
in the Atlantic and Great Lakes regions. This new ENC coverage
scheme will result in each country changing their areas of
coverage, so that only one country's ENC would be available for any
given area.
A Notice to Mariner will be issued when the revised ENCs are
available to the public.
(Source: www.nauticalcharts.noaa.gov)
