FAR and DFARS › DFARS Part 247: Transportation › Subpart 247.5
DFARS 247.571 Definitions.
The codified text (eCFR, as of 2026-10-02). Under the Revolutionary FAR Overhaul ↗, agencies follow class deviations with new text for many parts while the formal rules go through the Federal Register: check the solicitation and your contract's clauses, which rule.
In plain English
This section defines key terms used in DFARS subpart 247.571, such as 'corrective and preventive maintenance or repair,' 'covered vessel,' 'foreign-flag vessel,' 'ocean transportation,' 'overhaul, repair, and maintenance work,' 'reflagging or repair work,' 'supplies,' and 'U.S.-flag vessel.' These definitions matter to contractors because they determine which vessels and activities fall under the subpart's requirements, affecting how contractors classify work and comply with applicable rules.
Applies to: Contractors involved in ocean transportation, vessel maintenance, or repair under DoD contracts
Key terms: corrective and preventive maintenance or repair · covered vessel · foreign-flag vessel · ocean transportation · overhaul, repair, and maintenance work
Written by AI from this section's text. A guide, not legal advice: the text below rules.
The text
As used in this subpart—
Corrective and preventive maintenance or repair means—
(1) Maintenance or repair actions performed as a result of a failure in order to return or restore equipment to acceptable performance levels; and
(2) Scheduled maintenance or repair actions to prevent or discover functional failures.
Covered vessel means a vessel—
(1) Owned, operated, or controlled by the offeror; and
(2) Qualified to engage in the carriage of cargo in the coastwise or noncontiguous trade under 46 U.S.C. 12112 and 50501 and 46 U.S.C. chapter 551.
Foreign-flag vessel means any vessel that is not a U.S.-flag vessel.
Ocean transportation means any water-borne transportation aboard a ship, vessel, boat, barge, ferry, or the like outside the internal waters of the United States (as defined in 33 CFR 2.24).
Overhaul, repair, and maintenance work means work requiring a shipyard period greater than or equal to 5 calendar days.
Reflagging or repair work means work performed on a vessel—
(1) To enable the vessel to meet applicable standards to become a vessel of the United States; or
(2) To convert the vessel to a more useful military configuration.
Supplies means supplies that are clearly identifiable for eventual use by or owned by DoD at the time of transportation by sea, or are otherwise transported by DoD, regardless of ownership or use by DoD. An item is clearly identifiable for eventual use by DoD if, for example, the contract documentation contains a reference to a DoD contract number or a military destination.
U.S.-flag vessel means either a vessel belonging to the United States or a vessel of the United States as that term is defined in 46 U.S.C. 116.
← 247.570 Scope. · 247.572 Policy. →
Rule changes for DFARS Part 247
- Defense Federal Acquisition Regulation Supplement: Preference for United States Vessels in Transporting Supplies By Sea (DFARS Case 2021-D020) ↗ · final rule 2024-09-26 · effective 2024-10-01
- Defense Federal Acquisition Regulation Supplement: Modification of Notification of Intent To Transport Supplies by Sea (DFARS Case 2020-D026) ↗ · final rule 2024-09-26 · effective 2024-10-01
- Defense Federal Acquisition Regulation Supplement: Preference for United States Vessels in Transporting Supplies by Sea (DFARS Case 2021-D020) ↗ · proposed 2024-04-25 · comments due 2024-06-24
- Defense Federal Acquisition Regulation Supplement: Modification of Notification of Intent To Transport Supplies by Sea (DFARS Case 2020-D026) ↗ · proposed 2024-03-26 · comments due 2024-05-28
Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.