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product_type Digital Chart

C-Map NT+ Chart NA-C394: Portland to Boston (Update)

  • $124.50

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Publisher C-MAP by Jeppesen
Class Wide
Media C-Card or FP Card
Technology NT+
UPC 686074002562

Why Update Your C-Map Chart?

 It is very important that the latest C-Map charts are used when sailing out in the open water for safe navigation purposes. The C-Map electronic chart libraries get updated twice a year to coincide with popular boating sessions. Included in the library updates are the latest notice to mariner updates from government hydrographic offices, updates to marina facilities, port services, photos and more. Navigational updates to C-Map charts include: 

  • Buoy, beacons and lights.
  • Shoreline areas and shallow water depths.
  • Channels, commercial shipping lanes, and restricted or dangerous areas.

Why Exchange Your C-Map Chart?

It is recommended to exchange your C-Map chart on your cartridge if you no longer sail or visit the area on the chart to more suitable chart coverage. The exchange process will allow you to receive a brand new chart at the reduced update price. Mail us your C-Map cartridge and we'll exchange the chart on the cartridge to the chart you order.   


How the C-Map Chart Updates & Exchange Process Works 

Simply purchase the update version of this chart or the update version of the new chart you want to exchange for by browsing through our C-Map update NT+ chart collection (exchange offer only valid if the new chart is the same price class as the current chart on your cartridge). Once your purchase has been made we'll email you a link to our customer return portal where you can enter your order # and email address to login to generate a return label. Once we have received your C-Map cartridge we'll program it accordingly with the update/exchange chart ordered and send it back to you. Please note there will be two shipping charges involved in this process, one to ship the cartridge to us and another to send it back to you. 

C-Map cartridges we update:

  • NT+
  • Max
  • Max-N
  • Max NT+
  • 4D


Our Mailing Address:

American Nautical Services
3311 S Andrews Ave, Suite 11
Fort Lauderdale, FL 33316
United States of America


Please note all C-Map chart orders are final once the chart is programmed onto the cartridge.


C-MAP NT+ cartography helped launch a digital charting revolution years ago, and it is still as useful and reliable as ever. For fishermen, sailors and cruisers who continue to depend on C-MAP NT+, C-Map provides updates twice annually to ensure that navigators benefit from all the latest Coast Guard Notice to Mariner (NTM) changes and other important chart data updates.

  • Rich chart detail and available data to aid in safe navigation
  • Easy on-screen queries of chart objects for greater situational awareness
  • Compatible with many brands and models of chartplotters on the water
  • Local and Wide coverage areas available


  • C-MAP NT+ provides boaters with the accurate, up-to-date vector chart detail including Depth Areas and Contours, Spot Soundings, NavAids, Light Sectors, Wrecks/Obstructions, Small Craft Facilities and more.
  • The detail and information available with C-MAP NT+ charts lets boaters approach any harbor and inlet with confidence — the perfect conclusion to a long voyage, sailing adventure or exciting day of bluewater fishing.
  • C-MAP NT+ Tides feature presents the time, water level and direction of tides with Tide Level graphs. This information is vital for navigation and fishing.
  • C-Marina Port database and detailed marina charts in C-MAP NT+ provides useful, categorized information for cruisers, fishermen and sailors — including Port Layout and Facilities, Operating Hours, Accessibility, phone/Email Contact Info and more.

C-Map Chart Compatibility Guide

Not sure which charts are compatible with your chart plotter? Find out if your chart plotter is compatible with C-Map charts using the C-Map Chart Compatibility Guide


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