Sources and licences

This page is generated from our source registry. It lists 22 sources we use or cite, with licence terms and the attribution shown beside their numbers, and 11 commercial sources we name but never republish.

Sources we use

Sources in use
SourceLicenceCommercial reuseAttribution shownCadence
IMF PortWatchIMF Copyright and Usage (terms effective 2024-10-11)Unconfirmed, permission requestedSource: IMF PortWatch (portwatch.imf.org), International Monetary Fund, using UN Global Platform AIS data. Statistics derived by World Freight Monitor.weekly (Tuesdays 09:00 US Eastern), full table rebuild
US Bureau of Labor Statistics, Producer Price IndexUS Government work, public domainPermittedSource: US Bureau of Labor Statistics, Producer Price Index.monthly, about 10 days after the reference month
US Bureau of Labor Statistics, Import and Export Price IndexesUS Government work, public domainPermittedSource: US Bureau of Labor Statistics, Import and Export Price Indexes.monthly, about 2.5 weeks after the reference month
Global Supply Chain Pressure IndexFederal Reserve Bank of New York Terms of UseUnconfirmed, permission requestedSource: Federal Reserve Bank of New York, Global Supply Chain Pressure Index.monthly, 10:00 US Eastern on the 4th business day
Border Crossing Entry DataUS Government work, public domainPermittedSource: US Bureau of Transportation Statistics, Border Crossing Entry Data, from US Customs and Border Protection.monthly, about 3 weeks lag
Waterborne Commerce StatisticsUS Government work, public domainPermittedSource: US Army Corps of Engineers, Waterborne Commerce Statistics Center.annual; provisional about 19 months after year end, final about 2.5 years
US International Trade Data APIPublic domain (CC0); API terms require a non-endorsement noticePermittedSource: US Census Bureau, USA Trade data. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.monthly, about 5 weeks lag
EIA World Oil Transit ChokepointsUS Government work, public domainPermittedSource: US Energy Information Administration, World Oil Transit Chokepoints, last updated 3 March 2026.annual, with a half year update
EIA Petroleum PricesUS Government work, public domainPermittedSource: US Energy Information Administration.weekly (Monday data, published Tuesday)
US Bureau of Labor Statistics, PPI Residual FuelsUS Government work, public domainPermittedSource: US Bureau of Labor Statistics, Producer Price Index, residual fuels (WPU0574).monthly
Distances Between Ports (Pub. 151)US Government work, public domainPermittedDistances: US National Geospatial-Intelligence Agency, Pub. 151, Distances Between Ports, 11th edition (2001).irregular editions; latest 11th edition 2001 (PDF built 2004)
World Freight MonitorCC BY 4.0 for our event records and derived statistics, subject to upstream termsPermittedWorld Freight Monitor (worldfreightmonitor.com).continuous
Panama Canal Authority (ACP)ACP terms; no open licence. Commercial reproduction prohibited without ACP authorisationNot permittedSource: Panama Canal Authority (ACP).Gatun Lake level daily CSV (1965 to present); monthly operations advisory PDF about 10 days after month end
Suez Canal AuthorityNo explicit licence found; footer "All Right Reserved"Unconfirmed, permission requestedSource: Suez Canal Authority.monthly statistics in embedded Power BI only; annual report PDF; news HTML about weekly
Port of Los Angeles statisticsNo licence found; disclaimer onlyUnconfirmed, permission requestedSource: Port of Los Angeles.monthly HTML tables from 2000, about 2 weeks lag
Port of Long Beach statisticsUnknownUnconfirmed, permission requestedSource: Port of Long Beach.unknown
Port Authority of New York and New Jersey cargo volumesNo terms foundUnconfirmed, permission requestedSource: Port Authority of New York and New Jersey.monthly from 2006, about 6 weeks lag
Port of Rotterdam throughput figuresPort of Rotterdam copyright notice; reproduction not permittedNot permittedSource: Port of Rotterdam Authority.quarterly press releases, annual PDF
Port of Antwerp-Bruges throughput releasesDisclaimer not captured (JavaScript rendered)Unconfirmed, permission requestedSource: Port of Antwerp-Bruges.quarterly and half year, prose only
Port of Hamburg statisticsHHM imprint; source must be acknowledgedUnconfirmed, permission requestedSource: Hafen Hamburg Marketing e.V.half year and annual, prose plus chart image
Maritime and Port Authority of Singapore port statisticsMPA Terms of Use; prior written permission required to reproduceNot permittedSource: Maritime and Port Authority of Singapore.monthly XLS, about 6 weeks lag
SingStat Sea Cargo and Shipping Statistics, Monthly (M651101)Singapore Open Data LicencePermittedContains information from the Sea Cargo and Shipping Statistics table accessed on {accessed} from SingStat, made available under the Singapore Open Data Licence.monthly from 1995-01, about 2 weeks lag

Commercial indices we do not republish

Freight rate benchmarks and commercial shipping data are licensed products. We may name and link them, but we never store, chart, derive from or quote their values. Where a price direction is needed we use the US Bureau of Labor Statistics producer price index for deep sea freight, which is public domain, and say that is what it is.