Aids to Navigation

Buoy Tending - Spring

Status of buoy tending for the spring season.

Buoy Tending - Fall

Status of buoy tending for the fall season.

Four-Season Navigational Buoys

Status of Year-Round Lighted Ice Spar (YRLIS).

• State of Advancement for YRLIS

• Evaluation of Performance for YRLIS

• YRLIS Evaluation of Performance Form (PDF Simplified)

AIS Aids to Navigation

A significant breakthrough has been achieved with regard to AIS aids to navigation (AIS AtoN).

Notices to Mariners (NOTMAR)

Provides the necessary information to update charts and nautical publications.

• List of Lights, Buoys and Fog Signals

How to Request an AIS AtoN and Maritime Mobile Service Identity (MMSI)

Application for an Automatic Identification System Aid to Navigation (AIS AtoN); and Obtention of a Maritime Mobile Service Identity (MMSI).