EP 1130-2-520
29 Nov 96
CHAPTER 2 - AIDS TO NAVIGATION, NAVIGATION CHARTS, AND RELATED DATA
2-1. Purpose. This chapter establishes the procedures on aids to navigation, chart data, and
publication of information on related USACE civil works water resources activities.
2-2. Background.
a. The USACE - by virtue of its lead role in construction, operations, and maintenance -
often has primary source data for direct use by the marine industry as well as input to other
agencies for use in carrying out their navigation missions. Besides construction and maintenance
work itself, the USACE performs hydrographic surveys, publishes navigation charts for inland
waters, evaluates and approves permit applications for Sec.10/404 work, and issues navigation
regulations.
b. The U.S. Coast Guard (USCG) maintains the U.S. aids to navigation system and has
mission responsibilities for management of vessel traffic. The USCG publishes the USCG Light
List, and weekly Local Notices to Mariners (LNTM) with summary information on hazards,
restrictions, aids to navigation changes, and National Ocean Service (NOS) chart updates. The
USCG also broadcasts more time-sensitive Notices to Mariners by VHF-FM radio broadcast.
c. The National Ocean Service (NOS), under the National Oceanic and Atmospheric
Administration (NOAA), prepares and publishes nautical charts for coastal (tidal) waters, the
intracoastal waterways, and the Great Lakes; and publishes the U.S. Coast Pilot for these same
areas for more detailed navigational information.
d. MSC/district commanders are responsible for preparing navigation charts for the inland
waterways (those maintained by the USACE) which are not charted by the National Ocean
Service (NOS).
e. Defense Mapping Agency (DMA) prepares worldwide nautical charts for Department
of Defense use; for U. S. waters, coverage is essentially the same as NOS, and DMA works
closely with NOS to share chart data. DMA also issues periodic Notices to Mariners for
correction and update of DMA and NOS charts.
2-3. Guidance.
a. The USACE will provide information to the responsible agencies and minimize
redundant publication of separate navigation information.
b. District commanders shall prepare channel survey/ condition reports from the results of
each controlled survey, using ENG Forms 4020-R and 4021-R prescribed in Appendixes B and C
for tabular reports. For coastal areas, a copy of the tabular reports and survey drawings/tracings
will be forwarded within 60 days after completion to (see Appendix D for addresses):
(1) National Ocean Service (NOS)
(2) Defense Mapping Agency (DMA) - drawings only
2-1
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