Welcome to Southwest District
Prevention Division (dp)


Local Notice to Mariners (LNM) Request


When requesting publication in the Local Notice to Mariners (LNM) please provide the following information 14 days prior to start of operation:

  • Type of operation (i.e. dredging, diving operations, construction.)
  • Location of operation including Latitude and Longitude in DD format and geographical position if applicable.
  • Duration of operation including start and completion dates.  If these dates change, the Coast Guard needs to be notified.
  • Vessels involved in the operation.
  • VHF-FM Radio Frequencies monitored by vessels on scene.
  • Point of Contact and 24 hour phone number.
  • Chart Number for the area of the operation (Add ENC).

Example of Published Local Notice to Mariners:

SOUTHERN CALIFORNIA- LONG BEACH- DIVING OPERATIONS- Divercorps Inc. will be conducting diving operations from 14 January through 22 February 2007 in the vicinity of Queensway Bay, Long Beach.  The M/V PRUDENT MARINER will be on scene monitoring VHF-FM CH.-16.  Mariners are advised to use caution when transiting the area.  For further comments or details contact Joe Coastie at (555) 123-4567.
CHART 18751, LNM 02/07 dated 08 January 2007.


You can notify the Waterways (dpw) office by:

 
Mailing:
Commander (dpw)
Southwest District
Bldg. 50-2, CG Island
Alameda, CA 94501-5100


* When mailing, please allow additional time for delivery.