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33 C.F.R. §§ 164.33–164.41

7 sections in range

§164.33. Charts and publications.

33 C.F.R. § 164.33

(a)
Each vessel must have the following:
(1)
Marine charts of the area to be transited, published by the National Ocean Service, U.S. Army Corps of Engineers, or a river authority that—
(i)
Are of a large enough scale and have enough detail to make safe navigation of the area possible; and
(ii)
Are currently corrected.
(2)
For the area to be transited, a currently corrected copy of, or applicable currently corrected extract from, each of the following publications:
(i)
U.S. Coast Pilot.
(ii)
Coast Guard Light List.
(3)
For the area to be transited, the current edition of, or applicable current extract from—
(i)
Tide tables published by private entities using data provided by the National Ocean Service.
(ii)
Tidal current tables published by private entities using data provided by the National Ocean Service or river current publication issued by a river authority.
(b)
As an alternative to the requirements for paragraph (a) of this section, a marine chart or publication, or applicable extract, published by a foreign government may be substituted for a U.S. chart and publication required by this section. The chart must be of large enough scale and have enough detail to make safe navigation of the area possible, and must be currently corrected. The publication, or applicable extract, must singly or in combination contain similar information to the U.S. Government publication to make safe navigation of the area possible. The publication, or applicable extract must be currently corrected, with the exceptions of tide and tidal current tables, which must be the current editions.
(c)
As used in this section, “currently corrected” means corrected with changes contained in all Notices to Mariners published by the National Geospatial-Intelligence Agency, or an equivalent foreign government publication, reasonably available to the vessel, and that is applicable to the vessel's transit.
Notes, amendments, and revision history

Amendments

[CGD 82-055, 48 FR 44535, Sept. 29, 1983, as amended by USCG-2001-9286, 66 FR 33641, June 25, 2001; USCG-2015-0433, 80 FR 44282, July 27, 2015; USCG-2016-0498, 82 FR 35088, July 28, 2017]

Authority

Authority: 46 U.S.C. 2103, 3703, 70034; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277. Sec. 164.13 also issued under 46 U.S.C. 8502. Sec. 164.46 also issued under 46 U.S.C. 70114 and Sec. 102 of Pub. L. 107-295. Sec. 164.61 also issued under 46 U.S.C. 6101. DHS Delegation No. 00170.1, Revision No. 01.4.

Amendments

[CGD 82-055, 48 FR 44535, Sept. 29, 1983, as amended by USCG-2001-9286, 66 FR 33641, June 25, 2001; USCG-2015-0433, 80 FR 44282, July 27, 2015; USCG-2016-0498, 82 FR 35088, July 28, 2017]

§164.35. Equipment: All vessels.

33 C.F.R. § 164.35

Each vessel must have the following:
(a)
A marine radar system for surface navigation.
(b)
An illuminated magnetic steering compass, mounted in a binnacle, that can be read at the vessel's main steering stand.
(c)
A current magnetic compass deviation table or graph or compass comparison record for the steering compass, in the wheelhouse.
(d)
A gyrocompass.
(e)
An illuminated repeater for the gyrocompass required by paragraph (d) of this section that is at the main steering stand, unless that gyrocompass is illuminated and is at the main steering stand.
(f)
An illuminated rudder angle indicator in the wheelhouse.
(g)
The following maneuvering information prominently displayed on a fact sheet in the wheelhouse—
(1)
A turning circle diagram to port and starboard that shows the time and distance and advance and transfer required to alter course 90 degrees with maximum rudder angle and constant power settings, for either full and half speeds, or for full and slow speeds. For vessels whose turning circles are essentially the same for both directions, a diagram showing a turning circle in one direction, with a note on the diagram stating that turns to port and starboard are essentially the same, may be substituted.
(2)
The time and distance to stop the vessel from either full and half speeds, or from full and slow speeds, while maintaining approximately the initial heading with minimum application of the rudder.
(3)
For each vessel with a fixed propeller, a table of shaft revolutions per minute for a representative range of speeds.
(4)
For each vessel with a controllable pitch propeller, a table of control settings for a representative range of speeds.
(5)
For each vessel that is fitted with an auxiliary device to assist in maneuvering, such as a bow thruster, a table of vessel speeds at which the auxiliary device is effective in maneuvering the vessel.
(6)
The maneuvering information for the normal load and normal ballast condition for—
(i)
Calm weather— wind 10 knots or less, calm sea;
(ii)
No current;
(iii)
Deep water conditions— water depth twice the vessel's draft or greater; and
(iv)
Clean hull.
(7)
At the bottom of the fact sheet, the following statement—
(h)
An echo depth sounding device.
(i)
A device that can continuously record the depth readings of the vessel's echo depth sounding device, except when operating on the Great Lakes and their connecting and tributary waters.
(j)
Equipment on the bridge for plotting relative motion.
(k)
Simple operating instructions with a block diagram, showing the change-over procedures for remote steering gear control systems and steering gear power units, permanently displayed on the navigating bridge and in the steering gear compartment.
(l)
An indicator readable from the centerline conning position showing the rate of revolution of each propeller, except when operating on the Great Lakes and their connecting and tributary waters.
(m)
If fitted with controllable pitch propellers, an indicator readable from the centerline conning position showing the pitch and operational mode of such propellers, except when operating on the Great Lakes and their connecting and tributary waters.
(n)
If fitted with lateral thrust propellers, an indicator readable from the centerline conning position showing the direction and amount of thrust of such propellers, except when operating on the Great Lakes and their connecting and tributary waters.
(o)
A telephone or other means of communication for relaying headings to the emergency steering station. Also, each vessel of 500 gross tons and over and constructed on or after June 9, 1995 must be provided with arrangements for supplying visual compass-readings to the emergency steering station.
Notes, amendments, and revision history

Amendments

[CGD 74-77, 42 FR 5956, Jan. 31, 1977, as amended by CGD 77-183, 45 FR 18925, Mar. 24, 1980; CGD 83-004, 49 FR 43466, Oct. 29, 1984; CGD 83-043, 60 FR 24771, May 10, 1995; 60 FR 28834, June 2, 1995; USCG-2020-0304, 85 FR 58280, Sept. 18, 2020]

Authority

Authority: 46 U.S.C. 2103, 3703, 70034; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277. Sec. 164.13 also issued under 46 U.S.C. 8502. Sec. 164.46 also issued under 46 U.S.C. 70114 and Sec. 102 of Pub. L. 107-295. Sec. 164.61 also issued under 46 U.S.C. 6101. DHS Delegation No. 00170.1, Revision No. 01.4.

Amendments

[CGD 74-77, 42 FR 5956, Jan. 31, 1977, as amended by CGD 77-183, 45 FR 18925, Mar. 24, 1980; CGD 83-004, 49 FR 43466, Oct. 29, 1984; CGD 83-043, 60 FR 24771, May 10, 1995; 60 FR 28834, June 2, 1995; USCG-2020-0304, 85 FR 58280, Sept. 18, 2020]

§164.37. Equipment: Vessels of 10,000 gross tons or more.

33 C.F.R. § 164.37

(a)
Each vessel of 10,000 gross tons or more must have, in addition to the radar system under § 164.35(a), a second marine radar system that operates independently of the first.
(b)
On each tanker of 10,000 gross tons or more that is subject to 46 U.S.C. 3708, the dual radar system required by this part must have a short range capability and a long range capability; and each radar must have true north features consisting of a display that is stabilized in azimuth.
Notes, amendments, and revision history

Amendments

[CGD 77-016, 43 FR 32112, July 24, 1978, as amended by CGD 79-033, 44 FR 26741, May 7, 1979; CGD 79-033, 47 FR 34389, Aug. 9, 1982; USCG-1998-3799, 63 FR 35532, June 30, 1998; USCG-2020-0304, 85 FR 58280, Sept. 18, 2020]

Authority

Authority: 46 U.S.C. 2103, 3703, 70034; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277. Sec. 164.13 also issued under 46 U.S.C. 8502. Sec. 164.46 also issued under 46 U.S.C. 70114 and Sec. 102 of Pub. L. 107-295. Sec. 164.61 also issued under 46 U.S.C. 6101. DHS Delegation No. 00170.1, Revision No. 01.4.

Amendments

[CGD 77-016, 43 FR 32112, July 24, 1978, as amended by CGD 79-033, 44 FR 26741, May 7, 1979; CGD 79-033, 47 FR 34389, Aug. 9, 1982; USCG-1998-3799, 63 FR 35532, June 30, 1998; USCG-2020-0304, 85 FR 58280, Sept. 18, 2020]

§164.38. Automatic radar plotting aids (ARPA).

33 C.F.R. § 164.38

(a)
The following definitions are used in this section— Bulk means material in any quantity that is shipped, stored, or handled without benefit of package, label, mark or count and carried in integral or fixed independent tanks.

Constructed means a stage of construction where—

(1)
The keel is laid;
(2)
Construction identifiable with a specific ship begins; or
(3)
Assembly of that ship has commenced comprising at least 50 tons or 1 percent of the estimated mass of all structural material, whichever is less.

Hazardous material means—

(1)
A flammable liquid as defined in 46 CFR 30.10-22 or a combustible liquid as defined in 46 CFR 30.10-15;
(2)
A material listed in table 151.05 of 46 CFR 151.05, table 1 of 46 CFR 153, or table 4 of 46 CFR part 154; or
(3)
A liquid, liquefied gas, or compressed gas listed in 49 CFR 172.101.

Self-propelled vessel includes those combinations of pushing vessel and vessel being pushed ahead which are rigidly connected in a composite unit and are required by Rule 24(b) of the International Regulations for Preventing Collisions at Sea, 1972 (72 COLREGS) (App. A to 33 CFR part 81) to exhibit the lights prescribed in Rule 23 for a “Power Driven Vessel Underway”.

Tank vessel means a vessel that is constructed or adapted to carry; or carries, oil or hazardous materials in bulk as cargo or cargo residue.

(b)
An Automatic Radar Plotting Aid (ARPA) that complies with the standard for such devices adopted by the International Maritime Organization in its “Operational Standards for Automatic Radar Plotting Aids” (Appendix A), and that has both audible and visual alarms, must be installed as follows:
(1)
Each self-propelled vessel, except a public vessel, of 10,000 gross tons or more carrying oil or hazardous materials in bulk as cargo or in residue on the navigable waters of the United States, or which transfers oil or hazardous materials in any port or place subject to the jurisdiction of the United States, must be equipped with an ARPA.
(2)
Each tank vessel of 10,000 gross tons or more operating on the navigable waters of the United States must be equipped with an ARPA.
(3)
Each self-propelled vessel of 15,000 gross tons or more that is not a tank vessel, and is not carrying oil or hazardous material in bulk as cargo or in residue operating on the navigable waters of the United States, and was constructed before September 1, 1984, must be equipped with an ARPA, except when it is operating on the Great Lakes and their connecting and tributary waters.
(4)
Each vessel of 10,000 gross tons or more, except when operating on the Great Lakes and their connecting and tributary waters, constructed on or after September 1, 1984 must be equipped with an ARPA.
(c)
[Reserved]
(d)
(1)
Each device required under paragraph (b) of this section must have a permanently affixed label containing:
(i)
The name and address of the manufacturer; and
(ii)
The following statement— “This device was designed and manufactured to comply with the International Maritime Organization (IMO) ‘Performance Standards for Automatic Radar Plotting Aids (ARPA).’ ”
(2)
[Reserved]
Notes, amendments, and revision history

Amendments

[CGD 79-148, 45 FR 54039, Aug. 14, 1980; 45 FR 71800, Oct. 30, 1980, as amended by CGD 83-004, 49 FR 43467, Oct. 29, 1984; USCG-1998-3799, 63 FR 35532, June 30, 1998; USCG-2011-0257, 76 FR 31838, June 2, 2011]

Authority

Authority: 46 U.S.C. 2103, 3703, 70034; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277. Sec. 164.13 also issued under 46 U.S.C. 8502. Sec. 164.46 also issued under 46 U.S.C. 70114 and Sec. 102 of Pub. L. 107-295. Sec. 164.61 also issued under 46 U.S.C. 6101. DHS Delegation No. 00170.1, Revision No. 01.4.

Amendments

[CGD 79-148, 45 FR 54039, Aug. 14, 1980; 45 FR 71800, Oct. 30, 1980, as amended by CGD 83-004, 49 FR 43467, Oct. 29, 1984; USCG-1998-3799, 63 FR 35532, June 30, 1998; USCG-2011-0257, 76 FR 31838, June 2, 2011]

§164.39. Steering gear: Foreign tankers.

33 C.F.R. § 164.39

(a)
This section applies to each foreign tanker of 10,000 gross tons or more, except a public vessel, that—
(1)
Transfers oil at a port or place subject to the jurisdiction of the United States; or
(2)
Otherwise enters or operates in the navigable waters of the United States, except a vessel described by § 164.02 of this part.
(b)
Definitions. The terms used in this section are as follows:

Constructed means the same as in Chapter II-1, Regulations 1.1.2 and 1.1.3.1, of SOLAS 74.

Existing tanker means a tanker—

(1)
For which the building contract is placed on or after June 1, 1979;
(2)
In the absence of a building contract, the keel of which is laid or which is at a similar stage of construction on or after January 1, 1980;
(3)
The delivery of which occurs on or after June 1, 1982; or
(4)
That has undergone a major conversion contracted for on or after June 1, 1979; or construction of which was begun on or after January 1, 1980, or completed on or after June 1, 1982.

Public vessel, oil, hazardous materials, and foreign vessel mean the same as in 46 U.S.C. 2101.

SOLAS 74 means the International Convention for the Safety of Life at Sea, 1974, as amended.

Tanker means a self-propelled vessel defined as a tanker or a tank vessel by 46 U.S.C. 2101.

(c)
Each tanker constructed on or after September 1, 1984, must meet the applicable requirements of Chapter II-1, Regulations 29 and 30, of SOLAS 74.
(d)
Each tanker constructed before September 1, 1984, must meet the requirements of Chapter II-1, Regulation 29.19, of SOLAS 74.
(e)
Each tanker of 40,000 gross tons or more, constructed before September 1, 1984, that does not meet the single-failure criterion of Chapter II-1, Regulation 29.16, of SOLAS 74, must meet the requirements of Chapter II-1, Regulation 29.20, of SOLAS 74.
(f)
Each tanker constructed before September 1, 1984, must meet the applicable requirements of Chapter II-1, Regulations 29.14 and 29.15, of SOLAS 74.
Notes, amendments, and revision history

Amendments

[CGD 83-043, 60 FR 24771, May 10, 1995, as amended by USCG-2024-1103, 90 FR 52878, Nov. 24, 2025]

Authority

Authority: 46 U.S.C. 2103, 3703, 70034; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277. Sec. 164.13 also issued under 46 U.S.C. 8502. Sec. 164.46 also issued under 46 U.S.C. 70114 and Sec. 102 of Pub. L. 107-295. Sec. 164.61 also issued under 46 U.S.C. 6101. DHS Delegation No. 00170.1, Revision No. 01.4.

Amendments

[CGD 83-043, 60 FR 24771, May 10, 1995, as amended by USCG-2024-1103, 90 FR 52878, Nov. 24, 2025]

§164.40. Devices to indicate speed and distance.

33 C.F.R. § 164.40

(a)
Each vessel required to be fitted with an Automatic Radar Plotting Aid (ARPA) under § 164.38 of this part must be fitted with a device to indicate speed and distance of the vessel either through the water or over the ground.
(b)
The device must meet the following specifications:
(1)
The display must be easily readable on the bridge by day or night.
(2)
Errors in the indicated speed, when the vessel is operating free from shallow water effect, and from the effects of wind, current, and tide, should not exceed 5 percent of the speed of the vessel, or 0.5 knot, whichever is greater.
(3)
Errors in the indicated distance run, when the vessel is operating free from shallow water effect, and from the effects of wind, current, and tide, should not exceed 5 percent of the distance run of the vessel in one hour or 0.5 nautical mile in each hour, whichever is greater.
Notes, amendments, and revision history

Amendments

[CGD 83-004, 49 FR 43467, Oct. 29, 1984, as amended by USCG-1998-3799, 63 FR 35532, June 30, 1998]

Authority

Authority: 46 U.S.C. 2103, 3703, 70034; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277. Sec. 164.13 also issued under 46 U.S.C. 8502. Sec. 164.46 also issued under 46 U.S.C. 70114 and Sec. 102 of Pub. L. 107-295. Sec. 164.61 also issued under 46 U.S.C. 6101. DHS Delegation No. 00170.1, Revision No. 01.4.

Amendments

[CGD 83-004, 49 FR 43467, Oct. 29, 1984, as amended by USCG-1998-3799, 63 FR 35532, June 30, 1998]

§164.41. Electronic position fixing devices.

33 C.F.R. § 164.41

(a)
Each vessel calling at a port in the continental United States, including Alaska south of Cape Prince of Wales, except each vessel owned or bareboat chartered and operated by the United States, or by a state or its political subdivision, or by a foreign nation, and not engaged in commerce, must have a satellite navigation receiver with—
(1)
Automatic acquisition of satellite signals after initial operator settings have been entered; and
(2)
Position updates derived from satellite information during each usable satellite pass.
(b)
A system that is found by the Commandant to meet the intent of the statements of availability, coverage, and accuracy for the U.S. Coastal Confluence Zone (CCZ) contained in the U.S. “Federal Radionavigation Plan” (Report No. DOD-NO 4650.4-P, I or No. DOT-TSC-RSPA-80-16, I). A person desiring a finding by the Commandant under this subparagraph must submit a written application describing the device to the Commandant (CG-DCO-D), Attn: Deputy for Operations Policy and Capabilities, U.S. Coast Guard Stop 7318, 2703 Martin Luther King Jr. Avenue SE., Washington, DC 20593-7318. After reviewing the application, the Commandant may request additional information to establish whether or not the device meets the intent of the Federal Radionavigation Plan. Note: The Federal Radionavigation Plan is available from the National Technical Information Service, Springfield, Va. 22161, with the following Government Accession Numbers:
Notes, amendments, and revision history

Amendments

[USCG-2011-0257, 76 FR 31838, June 2, 2011, as amended by USCG-2014-0410, 79 FR 38442, July 7, 2014]

Authority

Authority: 46 U.S.C. 2103, 3703, 70034; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277. Sec. 164.13 also issued under 46 U.S.C. 8502. Sec. 164.46 also issued under 46 U.S.C. 70114 and Sec. 102 of Pub. L. 107-295. Sec. 164.61 also issued under 46 U.S.C. 6101. DHS Delegation No. 00170.1, Revision No. 01.4.

Amendments

[USCG-2011-0257, 76 FR 31838, June 2, 2011, as amended by USCG-2014-0410, 79 FR 38442, July 7, 2014]