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CCG operates one of the largest networks of navigational [[buoys]], [[lighthouses]] and [[foghorn]]s in the world. These facilities assist marine navigation on the Atlantic, Pacific and Arctic coasts as well as selected inland waterways. CCG represents Canada at the [[International Association of Lighthouse Authorities|International Association of Marine Aids to Navigation and Lighthouse Authorities]] (IALA).
CCG completed a large-scale program of lighthouse automation and de-staffing which began in 1968 and was largely completed in the 1990s.<ref>''Lighthouses and Lights'' E.R. Irwin, Nimbus, 2003, p. viii</ref> The result of this program saw the automation of all lighthouses and the removal of light keepers except for a handful of stations in British Columbia, Newfoundland and Labrador and New Brunswick.
Budget cuts and technological changes in the marine shipping industry, such as the increased use of [[GPS]], electronic navigation charts and the [[Global Maritime Distress Safety System]], has led CCG to undertake several service reviews for aids to navigation in recent decades.
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