← All vessels
Coverage, known gaps and method
What this is
Maury publishes every US commercial vessel with a US Coast Guard inspection record, 226,477 hulls, with every inspection, deficiency, operational control and casualty recorded against each. The record runs from 1972 for every class, thin before 1985; casualty investigations from 1991, through 13 September 2026. 40,323 documented commercial hulls with no inspection record have a documentation-record page. Recreational vessels are never published; hulls filed without a class are held and not published. It does not score, rate, or grade vessels, and it publishes
no opinion about any vessel's condition.
The archive behind the site is larger than the site. Source: USCG Port State Information Exchange (PSIX) — 247 exports covering 27 February 1972 through 13 September 2026, all retrieved 18 September 2026. The archive holds 1,073,629 vessels of every class, 3,424,711 recorded inspections, 1,369,025 deficiencies and 96,995 operational controls; 226,477 of those vessels have a page, and 2,207,720 of the inspections are reachable through one.
The archive behind the site is larger than the site. Source: USCG Port State Information Exchange (PSIX) — 247 exports covering 27 February 1972 through 13 September 2026, all retrieved 18 September 2026. The archive holds 1,073,629 vessels of every class, 3,424,711 recorded inspections, 1,369,025 deficiencies and 96,995 operational controls; 226,477 of those vessels have a page, and 2,207,720 of the inspections are reachable through one.
Where these records come from
31.1% of the records were written by one Coast Guard
district: predominantly the Mississippi–Ohio inland river system, with coastal
and Alaskan activity included. Unit and district names are as recorded at the time.
47,666 inspections cover more than one vessel, a tug and its tow.
What this archive covers, and what it misses
Maury holds every hull on the Coast Guard's inspection record in every class, and
every hull in the National Vessel Documentation Center file as NOAA serves it. The site
publishes the commercial classes with an inspection record: 226,477
vessels, and 40,323 documented commercial hulls with no inspection record, as documentation records.
Two populations are held and not published, and the reason is recorded against
each hull rather than implied by the absence of a page:
983,187 recreational vessels. Recreational vessels are never published, at any version of the rule: they are private boats owned by private individuals. 239,260 of them are in the documentation file only.
145,123 hulls the Coast Guard filed with no class — excluded for now.
Where the record begins. The record runs from 1972 for every class, and is thin before 1985. By class: Barge from 1972; Bulk Carrier from 1981; Fishing Vessel from 1972; General Dry Cargo Ship from 1980; Miscellaneous Vessel from 1979; Offshore from 1978; Passenger Ship from 1977; Refrigerated Cargo Ship from 1984; Research Ship from 1980; Ro-Ro Cargo Ship from 1981; School Ship from 1981; Tank Ship from 1980; Towing Vessel from 1980; Warship from 1983. Each vessel page states the year its class's record begins beside its data vintage.
Before 1985. PSIX coverage begins around 1985. 2 in 1972, 405 in 1980, 3,535 in 1981, 6,248 in 1982, 7,413 in 1983, 18,366 in 1984, 38,196 in 1985: that ramp is the record starting, not the fleet appearing, and any trend that crosses it is nonsense.
Partial years in the all-class record. For every class except barge and towing vessel, the record is partial where the all-class export has been retrieved for only part of a year: 305 of 366 days of 2000, 349 of 365 days of 2005, 304 of 365 days of 2006, 334 of 365 days of 2007, 197 of 365 days of 2009, 212 of 365 days of 2010, 182 of 365 days of 2011, 152 of 366 days of 2012, none of 2013, 154 of 365 days of 2014 and 172 of 365 days of 2015. The Coast Guard's record for those years is whole; the gap is in what has been retrieved so far, and it closes as the remaining windows are pulled.
Rule history. From 27 August to 10 September 2026 the site published only hulls the Coast Guard classed as Barge or Towing Vessel: 50,028 vessels. The second rule opened every commercial class with an inspection record on 10 September 2026; the 460-foot, 24,213-deadweight-ton hull the Coast Guard classes as a General Dry Cargo Ship, which the first rule left out, has a page. The third rule, on 12 September 2026, published the documented but uninspected commercial fleet as documentation records: 40,323 hulls in the National Vessel Documentation Center file with no Coast Guard inspection on record, 15,036 of them with a valid document, each page headed as what it is. Each rule is kept as data beside the one before it, so a change in what the site publishes is itself auditable.
983,187 recreational vessels. Recreational vessels are never published, at any version of the rule: they are private boats owned by private individuals. 239,260 of them are in the documentation file only.
145,123 hulls the Coast Guard filed with no class — excluded for now.
Where the record begins. The record runs from 1972 for every class, and is thin before 1985. By class: Barge from 1972; Bulk Carrier from 1981; Fishing Vessel from 1972; General Dry Cargo Ship from 1980; Miscellaneous Vessel from 1979; Offshore from 1978; Passenger Ship from 1977; Refrigerated Cargo Ship from 1984; Research Ship from 1980; Ro-Ro Cargo Ship from 1981; School Ship from 1981; Tank Ship from 1980; Towing Vessel from 1980; Warship from 1983. Each vessel page states the year its class's record begins beside its data vintage.
Before 1985. PSIX coverage begins around 1985. 2 in 1972, 405 in 1980, 3,535 in 1981, 6,248 in 1982, 7,413 in 1983, 18,366 in 1984, 38,196 in 1985: that ramp is the record starting, not the fleet appearing, and any trend that crosses it is nonsense.
Partial years in the all-class record. For every class except barge and towing vessel, the record is partial where the all-class export has been retrieved for only part of a year: 305 of 366 days of 2000, 349 of 365 days of 2005, 304 of 365 days of 2006, 334 of 365 days of 2007, 197 of 365 days of 2009, 212 of 365 days of 2010, 182 of 365 days of 2011, 152 of 366 days of 2012, none of 2013, 154 of 365 days of 2014 and 172 of 365 days of 2015. The Coast Guard's record for those years is whole; the gap is in what has been retrieved so far, and it closes as the remaining windows are pulled.
Rule history. From 27 August to 10 September 2026 the site published only hulls the Coast Guard classed as Barge or Towing Vessel: 50,028 vessels. The second rule opened every commercial class with an inspection record on 10 September 2026; the 460-foot, 24,213-deadweight-ton hull the Coast Guard classes as a General Dry Cargo Ship, which the first rule left out, has a page. The third rule, on 12 September 2026, published the documented but uninspected commercial fleet as documentation records: 40,323 hulls in the National Vessel Documentation Center file with no Coast Guard inspection on record, 15,036 of them with a valid document, each page headed as what it is. Each rule is kept as data beside the one before it, so a change in what the site publishes is itself auditable.
Which vessels have a page
The archive holds 1,073,629 hulls with a Coast Guard inspection record and
279,583 more from the documentation file. The site publishes
226,477, under two rules:
include every hull with a Coast Guard inspection record whose class is not Recreational and not blank; and every commercial hull in the documentation file with no inspection record, as a documentation record (40,323 pages).
Every vessel that rule includes has a page, with no recency filter — hulls last recorded decades ago are here. Vessels the rule excludes are held in the archive and are not published, and the reason is recorded per vessel. When the rule changes it is added as a new version beside this one, never by editing it.
include every hull with a Coast Guard inspection record whose class is not Recreational and not blank; and every commercial hull in the documentation file with no inspection record, as a documentation record (40,323 pages).
Every vessel that rule includes has a page, with no recency filter — hulls last recorded decades ago are here. Vessels the rule excludes are held in the archive and are not published, and the reason is recorded per vessel. When the rule changes it is added as a new version beside this one, never by editing it.
Known gaps
Three ranges are missing entirely because the USCG CGMIX export failed at source:
barge 2009-10-01 to 2009-11-30; barge 2011-03-01 to 2011-05-31; barge 2013-01-01 to 2013-05-31. Figures for those years are correspondingly low.
Later exports have since covered the rest of 2009-10-01 to 2009-12-31, the rest of 2011-01-01 to 2011-05-31.
2020 incident records come from two sources, and the year is near-complete for barges and not for towing vessels. The Coast Guard produced no incident export for 2020. Maury holds 2,268 incidents dated 2020: 2,089 that surfaced in neighbouring years' exports and 179 recovered from the Coast Guard's IIR web service. Judged by the class of hull involved, that is 616 incidents touching a barge against about 638 in a typical neighbouring year (97%), and 1,039 touching a towing vessel against about 1,290 (81%). Any reading of 2020 restricted to towing vessels should treat the year as incomplete. Web-service records do not carry the originating unit, the activity owner, or the number of people dead, injured or missing; those fields are shown as not carried, never as zero, and an export record replaces a web-service record for the same incident as soon as one exists.
61.7% of inspection records carry no inspection type at all, and the share is far higher before 2000 than after 2015. A count of physical examinations is therefore a count of what was written down, not of what was done, and it is least complete for the oldest records.
443,738 vessels have no build year recorded, and 670 carry a build year later than their last recorded inspection. Both are shown exactly as recorded. Nothing is reconciled or inferred.
866,676 vessels are in the barge class but carry a vessel type that does not name a barge. They are included because the Coast Guard classed them as barges.
Tow-unit lists are a floor, not a manifest. A recreational or unclassed hull inspected in the same activity is held and not published, so it does not appear in the list.
2020 incident records come from two sources, and the year is near-complete for barges and not for towing vessels. The Coast Guard produced no incident export for 2020. Maury holds 2,268 incidents dated 2020: 2,089 that surfaced in neighbouring years' exports and 179 recovered from the Coast Guard's IIR web service. Judged by the class of hull involved, that is 616 incidents touching a barge against about 638 in a typical neighbouring year (97%), and 1,039 touching a towing vessel against about 1,290 (81%). Any reading of 2020 restricted to towing vessels should treat the year as incomplete. Web-service records do not carry the originating unit, the activity owner, or the number of people dead, injured or missing; those fields are shown as not carried, never as zero, and an export record replaces a web-service record for the same incident as soon as one exists.
61.7% of inspection records carry no inspection type at all, and the share is far higher before 2000 than after 2015. A count of physical examinations is therefore a count of what was written down, not of what was done, and it is least complete for the oldest records.
443,738 vessels have no build year recorded, and 670 carry a build year later than their last recorded inspection. Both are shown exactly as recorded. Nothing is reconciled or inferred.
866,676 vessels are in the barge class but carry a vessel type that does not name a barge. They are included because the Coast Guard classed them as barges.
Tow-unit lists are a floor, not a manifest. A recreational or unclassed hull inspected in the same activity is held and not published, so it does not appear in the list.
Elsewhere on Maury
How the inspection-type split is derived
PSIX records inspection type as free text with no published taxonomy. Maury groups those
values into physical examinations and administrative events. That grouping is Thalor's
reading of Coast Guard vocabulary, not a Coast Guard fact, and the only derived field
on the site; a value that fits neither is left unclassified.