46 CFR 15.105: General manning requirements and STCW applicability
Last reviewed: October 14, 2026
This section says the regulations in this part apply to vessels subject to U.S. manning laws, including uninspected vessels. It names who must ensure proper personnel are carried. It also explains which vessels are covered by, exempt from, or deemed compliant with STCW subpart K.
Applies toAll vessels that are subject to the manning requirements contained in the navigation and shipping laws of the United States, including uninspected vessels.
What it says
The regulations in this part apply to all vessels subject to the manning requirements in the navigation and shipping laws of the United States, including uninspected vessels.
46 CFR 15.105(a)“The regulations in this part apply to all vessels that are subject to the manning requirements contained in the navigation and shipping laws of the United States, including uninspected vessels”
The owner, charterer, managing operator, Master, or Person in Charge or in command of the vessel is responsible for ensuring that appropriate personnel are carried to meet the applicable navigation and shipping laws and regulations.
46 CFR 15.105(b)“It is the responsibility of the owner, charterer, managing operator, Master, or Person in Charge or in command of the vessel to ensure that appropriate personnel are carried”
A Certificate of Inspection complements the statutory manning requirements but does not supersede them.
46 CFR 15.105(c)“The COI complements the statutory requirements but does not supersede them.”
Uninspected vessels operating on an international voyage may be issued a safe manning certificate indicating the minimum complement of qualified mariners necessary for safe operation.
46 CFR 15.105(d)“Uninspected vessels operating on an international voyage may be issued a safe manning certificate indicating the minimum complement of qualified mariners necessary for safe operation.”
The regulations in subpart K of this part apply to seagoing vessels subject to the STCW Convention.
46 CFR 15.105(e)“The regulations in subpart K of this part apply to seagoing vessels subject to the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers, 1978, as amended (STCW).”
Persons serving on certain vessels, and their owners or operators, do not need to meet subpart K of this part because those vessels are exempt from STCW. These include fishing vessels, barges, pilot vessels engaged on pilotage duty, and vessels operating exclusively on the Great Lakes or the listed inland waters.
46 CFR 15.105(f)“do not need to meet the requirements of subpart K of this part, because the vessels are exempt from application of STCW”
Owners, operators and personnel on listed small vessels engaged exclusively on domestic, near-coastal voyages are in compliance with subpart K of this part and are not subject to further requirements for the purposes of the STCW Convention.
46 CFR 15.105(g)“are in compliance with subpart K of this part and are, therefore, not subject to further requirements for the purposes of the STCW Convention”
The Coast Guard may issue personnel on vessels in paragraphs (g)(1) and (2) an STCW endorsement without additional proof of qualification when it determines the endorsement is necessary for a single international voyage of a non-routine nature. The endorsement is limited to service on that vessel or class of vessels.
46 CFR 15.105(h)“The STCW endorsement will be expressly limited to service on the vessel or the class of vessels and will not establish qualification for any other purpose.”
Common questions
Who is responsible for making sure a vessel has the right crew?
The owner, charterer, managing operator, Master, or Person in Charge or in command of the vessel is responsible. They must ensure appropriate personnel are carried to meet the applicable laws and regulations.
“It is the responsibility of the owner, charterer, managing operator, Master, or Person in Charge or in command of the vessel to ensure that appropriate personnel are carried”
Do fishing vessels have to meet STCW subpart K?
No. Fishing vessels as defined in 46 U.S.C. 2101 are exempt from application of STCW, so persons serving on them do not need to meet subpart K of this part.
“Fishing vessels as defined in 46 U.S.C. 2101.”
Does a Certificate of Inspection replace the legal manning requirements?
No. The COI indicates the minimum complement of officers and crew, but it complements the statutory requirements and does not supersede them.
“The COI complements the statutory requirements but does not supersede them.”
The text of 46 CFR 15.105
Electronic Code of Federal Regulations (eCFR), current as of April 16, 2026 · Read it on eCFR
General
(a) The regulations in this part apply to all vessels that are subject to the manning requirements contained in the navigation and shipping laws of the United States, including uninspected vessels (46 U.S.C. 7101-9308).
(b) The navigation and shipping laws state that a vessel may not be operated unless certain manning requirements are met. In addition to establishing a minimum number of officers and rated crew to be carried onboard certain vessels, they establish minimum qualifications concerning MMC endorsements, citizenship, and conditions of employment. It is the responsibility of the owner, charterer, managing operator, Master, or Person in Charge or in command of the vessel to ensure that appropriate personnel are carried to meet the requirements of the applicable navigation and shipping laws and regulations.
(c) Inspected vessels are issued a Certificate of Inspection (COI) which indicates the minimum complement of officers and crew (including Lifeboat Operators) considered necessary for safe operation. The COI complements the statutory requirements but does not supersede them.
(d) Uninspected vessels operating on an international voyage may be issued a safe manning certificate indicating the minimum complement of qualified mariners necessary for safe operation.
(e) The regulations in subpart K of this part apply to seagoing vessels subject to the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers, 1978, as amended (STCW).
(f) Persons serving on any of the following vessels, or any owner or operator of any of these vessels, do not need to meet the requirements of subpart K of this part, because the vessels are exempt from application of STCW:
(1) Fishing vessels as defined in 46 U.S.C. 2101.
(2) Fishing vessels used as fish-tender vessels as defined in 46 U.S.C. 2101.
(3) Barges as defined in 46 U.S.C. 102, including non-self-propelled Mobile Offshore Drilling Units.
(4) Vessels operating exclusively on the Great Lakes or on the inland waters of the U.S. in the Straits of Juan de Fuca or on the Inside Passage between Puget Sound and Cape Spencer.
(5) Pilot vessels engaged on pilotage duty.
(g) Owners and operators, and personnel serving on the following small vessels engaged exclusively on domestic, near-coastal voyages are in compliance with subpart K of this part and are, therefore, not subject to further requirements for the purposes of the STCW Convention:
(1) Small passenger vessels subject to subchapter T or K of this chapter.
(2) Vessels of less than 200 GRT, other than passenger vessels subject to subchapter H of this chapter.
(3) Uninspected passenger vessels (UPVs) as defined in subparagraph (B) of the definition of uninspected passenger vessel in 46 U.S.C. 2101.
(h) Personnel serving on vessels identified in paragraphs (g)(1) and (2) of this section may be issued, without additional proof of qualification, an appropriate STCW endorsement on their MMC when the Coast Guard determines that such an endorsement is necessary to enable the vessel to engage on a single international voyage of a non-routine nature. The STCW endorsement will be expressly limited to service on the vessel or the class of vessels and will not establish qualification for any other purpose.
The plain-English explanation on this page was written with AI from the regulation text above and checked automatically before publishing: every quote appears in the text, every number comes from it, and a second model confirmed each statement adds nothing the text doesn't say. Regulation text current as of April 16, 2026. The regulation text governs. RegKnot is not affiliated with the U.S. Coast Guard.