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It is the responsibility of the mariner to maintain their digital Sailing Directions file by ensuring that the latest version is always downloaded. Visit [charts.gc.ca](charts.gc.ca) to download the most recent version of this volume, with all current changes already incorporated.  \nThe table below lists the most recent changes that have been applied to this volume of Sailing Directions. This record of changes will be maintained at the discretion of the Canadian Hydrographic Service.  \n\n| Date | Chapter /\u003Cbr>Paragraph | Description of Change |\n| --- | --- | --- |\n| 2025/06 | Entire Booklet | CEN 300 has been reformatted and now meets Web Content Accessibility Guidelines (WCAG) 2.0. Other changes include updated imagery, hyperlinks, and indexing. |\n| 2025/06 | C2/P16 | Added website link. |\n| 2025/06 | Preface/C1/P1 | Removed geographical index. |\n| 2025/06 | C1/P101 | Replaced website link. |\n| 2025/06 | C1/P129 | Radar Beacons (Racons) are now described in List of Lights, Buoys and Fog Signals. |\n| 2025/10 | Entire Booklet | Updated all references of NOTSHIPs & Notice(s) to Shipping to NAVWARNs & Navigational Warnings |\n| 2026/06 | Enitre Booklet | Amended “Sail Plan” title in book to “Trip Plan” per Transport Canada |\n| 2026/06 | C1/P38 | Removed references of “Print copies are available at any CCG office” |\n|  |  |  |\n|  |  |  |\n|  |  |  |\n|  |  |  |\n|  |  |  |\n|  |  |  |\n|  |  |  |\n|  |  |  |\n|  |  |  |\n|  |  |  |\n\nCEN 300: General Information, Great Lakes  \nv  \nContents  \nPictogram Legendiii  \nRecord of Changesiv  \nPrefacevii  \nReferences to Other Publicationsvii  \nExplanato","cbCaihUogfGo7x9U","https://ap.wps.com/l/cbCaihUogfGo7x9U","pdf",8115789,76,"English","# Pictogram Legend\n# Record of Changes\n# Preface\n# References to Other Publications\n# Explanatory Notes\n# Abbreviations\n# Chapter 1: General Navigational Information\n## Routes and navigational hazards\n## Ship routing systems\n## Fishing vessels\n## Winter navigation\n## Nautical publications\n## Canadian Hydrographic Service (CHS) publications\n## Canadian Coast Guard (CCG) publications\n## Nautical charts\n## Magnetic variation\n## Cables\n## Water level information\n## Aids to navigation\n## Electronic positioning systems\n## Pilotage\n## Canadian Coast Guard (CCG)\n## Use of radio\n## Search and rescue (SAR)\n## Cold water survival\n# Chapter 2: Regulations\n## List of Statutes, Regulations, Guidelines and Conventions\n## Regulations\n# Chapter 3: General Geographic Information and Broad Description of Port Facilities\n## Geographical and physical features\n## The provinces\n## St. Lawrence River and Great Lakes system\n## Port facilities\n# Chapter 4: Natural Conditions\n## Seabed\n## Ice\n## Types of ice\n## Ages of ice\n## Concentration\n## Forms of floating ice\n## Surface features\n## Other Terms Common to Shipping\n## Ice coverage\n## Water levels\n## Seiches\n## Currents\n## Meteorological information\n# Appendices: Trip Plan\n## Other References\n## Distances in nautical miles: Montréal to Sarnia\n## Distances in nautical miles: Sarnia to Thunder Bay\n# Index","[{\"question\":\"How are updates to CEN 300 delivered and kept current?\",\"answer\":\"The record of changes notes that safety requires mariners to download the latest digital version. Updates are published via Notices to Mariners and on the Canadian Hydrographic Service website, which also hosts the most recent volume with current changes incorporated.\"},{\"question\":\"What navigation topics are covered in Chapter 1?\",\"answer\":\"Chapter 1 includes routes and navigational hazards, ship routing systems, fishing vessels, winter navigation, nautical publications, charts and magnetic variation, cables and water-level information, aids to navigation, electronic positioning systems, pilotage, radio use, search and rescue, and cold-water survival.\"},{\"question\":\"What natural conditions are described for the Great Lakes?\",\"answer\":\"Chapter 4 covers seabed conditions and ice, including ice types, ages, concentration, floating ice forms, surface features, ice coverage, water levels, seiches, currents, and meteorological information.\"}]","CEN 300 - Canadian Sailing Directions - General Information, Great Lakes - 2026/06 | PDF",1792986004,192]