USCG Port State Control Inspections: The Publications You Must Have on Board

A missing or outdated publication is one of the simplest deficiencies for a Port State Control inspector to find, and one of the easiest for a vessel to prevent. When the U.S. Coast Guard boards a vessel in a US port, the publications library is among the first things scrutinized, because an out-of-date Coast Pilot or a missing Navigation Rules copy signals wider gaps in a vessel's compliance discipline.

We will show the exact publications a USCG inspector expects to see, split by the legal basis that requires them, so masters, chief officers, and DPAs can verify the library before the inspector steps aboard.

What USCG Port State Control Inspectors Check

USCG Port State Control verifies that a vessel meets the standards of the international conventions and, for US-flagged vessels, the domestic carriage requirements in US federal law. The publications library sits alongside certificates, equipment, and crew competency in the scope of a full inspection.

The sections below focus specifically on the publications an inspector will ask to see. For full inspection-day preparation covering certificates, equipment, and drills, see the complete Port State Control inspection guide. For the underlying distinction between the two enforcement regimes at work, the guide on port state control versus flag state explains who requires what.

The critical point for publications is that two separate requirement sets apply, and confusing them is where vessels get caught. US domestic navigation publications are required under 33 CFR 164.33. The IMO convention publications are required under SOLAS and each vessel's flag state rules. A US port call can engage both.

US Domestic Publications Required Under 33 CFR 164.33

For vessels subject to US domestic carriage requirements, 33 CFR 164.33 specifies a defined set of navigation publications that must be aboard, current, and corrected. The list below is what a USCG inspector checks against the domestic rule.

Two details matter here. A vessel may use tide and tidal current tables published by private entities, provided the data comes from a government hydrographic source. And the Navigation Rules requirement, drawn from Inland Rule 1(g) and the 72 COLREGS, can be met by an up-to-date printed or downloaded copy of the amalgamated Rules, or by the Rules as published within the U.S. Coast Pilot.

IMO Convention Publications Required Under SOLAS

Vessels on international voyages carry a second set of publications required by SOLAS and enforced according to their flag state's carriage rules. A USCG Port State Control officer examining a foreign-flagged vessel verifies these against SOLAS Chapter V and the vessel's flag state requirements, not against 33 CFR.

The exact IMO publication set a vessel must carry depends on its type, trade, and flag state. A dangerous-goods carrier needs the current IMDG Code amendment; a vessel with no dangerous goods does not. Confirming the precise list with the flag state or classification society is the surest way to avoid a carriage deficiency.

Do Electronic Publications Satisfy USCG Requirements?

Electronic publications are broadly accepted, within defined limits. Under USCG Navigation and Vessel Inspection Circular (NVIC) 01-16 Change 2, issued 21 May 2020, US-flagged vessels may use electronic copies of voyage-planning navigation publications and the Navigation Rules to meet domestic carriage and SOLAS certificate requirements.

For SOLAS instruments, the USCG has accepted ADMIRALTY e-Nautical Publications (e-NPs) and ADMIRALTY Digital Publications (ADP) as meeting 33 CFR 164.33 and SOLAS Chapter V requirements. There is one firm exception: per IMO Circular MSC-MEPC.2/Circ.2, the International Code of Signals and the IAMSAR Manual must be carried in paper form. Electronic versions of those two do not satisfy the requirement.

Common Deficiencies Related to Missing or Outdated Publications

Publication deficiencies are among the most avoidable findings in a USCG inspection. The most frequently encountered issues are:

• A publication present but not the current edition, such as a superseded Coast Pilot or an out-of-date IMDG Code amendment.
• Tide or current tables from a prior year still in use after the new edition took effect.
• The Navigation Rules copy missing entirely, or an electronic copy that cannot be displayed on demand.
• The International Code of Signals or IAMSAR held only electronically, contrary to the paper requirement.
• Corrections not applied, leaving a publication technically present but not maintained to date.

Each of these is preventable with a routine that tracks edition currency and correction status across the whole library.

How to Keep Your Publications Library Current

A current publications library is maintained, not assembled once. The practical routine is to track every required publication against its latest edition and correction status, flag any edition due to be superseded, and replace superseded editions before they lapse rather than after an inspector finds them.

Assigning one officer responsibility for the publications library, with a documented checklist reviewed before each US port call, converts a scramble into a routine. Sourcing from a single supplier that tracks edition changes across US and IMO publications simplifies the task considerably. ANS maintains the full range of IMO and compliance publications alongside US government publications, so a vessel can keep both requirement sets current from one place.

Pass the Inspection Before the Inspector Boards

The publications library is one of the few parts of a PSC inspection a vessel can make deficiency-proof through preparation alone. Knowing which publications the two requirement sets demand, keeping every edition current, and holding the International Code of Signals and IAMSAR in paper form covers the ground where inspectors most often find fault. Shop the full range of compliance publications, or contact American Nautical Services at +1 (954) 522-3321 or sales@amnautical.com for help building a compliant onboard library.

Frequently Asked Questions

Here are answers to common questions about publications and USCG Port State Control.

What happens if a required publication is missing during a PSC inspection?

A missing or outdated required publication is recorded as a deficiency. Depending on severity and the inspector's judgment, the vessel may be required to obtain the publication before departure. Repeated or safety-critical publication deficiencies can contribute to a detention.

Do digital or electronic publications satisfy USCG carriage requirements?

In most cases, yes. USCG NVIC 01-16 Change 2 allows electronic navigation publications for US-flagged vessels, and the USCG accepts ADMIRALTY e-NPs and ADP for 33 CFR 164.33 and SOLAS requirements. The exceptions are the International Code of Signals and the IAMSAR Manual, which must be carried in paper form.

How often do I need to update my onboard publications library?

Publications must always be the current edition and fully corrected. Editions such as the Coast Pilot, Light List, and Tide Tables are updated on published schedules, and IMO instruments like the IMDG Code update on amendment cycles. Verify edition currency before each voyage and replace superseded editions promptly.

What US publications does the Coast Guard check under 33 CFR 164.33?

Under 33 CFR 164.33, the required navigation publications include the U.S. Coast Pilot, the USCG Light List, current Tide Tables, current Tidal Current Tables, and the Navigation Rules. Private-source tide and current tables are acceptable if the data originates from a government hydrographic source.

Which publications must be carried in paper form?

Under IMO Circular MSC-MEPC.2/Circ.2, the International Code of Signals and the IAMSAR Manual must be carried in paper form. Most other required IMO and US publications may be carried electronically under USCG NVIC 01-16 Change 2.