# Data Sources and Update Cadence

> Named air freight data and methodology sources, their uses, refresh cadence, and correction policy.

Canonical URL: https://airfreightprice.com/data-sources/

**Last updated: 29 July 2026**

This register names the sources used to define or validate AirFreightPrice methodology. Listing a source does not mean that we republish its prices. We publish no third-party index values in our rate tables.

## Source register

Source | 
What we use it for | 
Our check cadence | 
Publication treatment | 

[IATA TACT Online](https://www.iata.org/en/services/compliance/tact/online/) | 
Industry and airline tariffs, rules, schedules, add-ons, and carrier-specific conditions. | 
For a shipment when applicable; public source description checked monthly. | 
Rules and source attribution only; no licensed tariff values republished. | 

[IATA European Air Cargo Programme Handbook](https://www.iata.org/contentassets/e9cb5a72b88f4f68a5cfc572a50b60c9/eacph-en-final.pdf) | 
Definition of chargeable weight as the greater of actual gross weight and volume weight, subject to the applicable rules. | 
Monthly check for a newer edition. | 
Concept and citation only. | 

[Freightos Air Index (FAX)](https://www.freightos.com/enterprise/terminal/fax-global-freightos-air-index/) | 
Independent context for airfreight spot-market direction and a comparison methodology. | 
Methodology checked monthly; Freightos states that FAX is published daily on a rolling prior-seven-day basis. | 
No FAX numeric values copied or used as a carrier quote. | 

[Xeneta Air rate structure and methodology](https://help.xeneta.com/docs/rate-structure-and-methodology-air) | 
Independent reference for weight categories, service-level normalisation, and defined surcharge inclusion. | 
Methodology checked monthly. | 
No Xeneta numeric values copied or used as a carrier quote. | 

Written carrier, freight-forwarder, or partner terms | 
Shipment-specific route, service, validity, currency, weight basis, capacity, and itemised charges. | 
Checked for the shipment and its stated validity. | 
Used only with permission and attribution appropriate to the quote; binding terms come from the issuing supplier. | 

User-supplied shipment details | 
Origin, destination, ready date, pieces, actual weight, dimensions, commodity, and special handling. | 
Validated on each request. | 
Treated as request inputs, not market observations. | 

## Unavailable planned internal source

The planned internal Postgres table afp_routes was not present in the specified production data container when inspected on 29 July 2026. Consequently, this release publishes no internal route count, airport count, carrier count, rate, transit-time statistic, or derived index. Those figures will remain omitted until the dataset exists and its provenance, field definitions, completeness, and refresh process can be audited.

## Change and correction policy

We update this register when a source, purpose, or cadence changes. Material changes also update the date on the [Air Freight Rate Reference](/en/air-freight-rate-reference/). Send corrections to [info@airfreightprice.com](mailto:info@airfreightprice.com?subject=Data%20source%20correction) with a source link and effective date.

Read the full [Methodology](/en/methodology/).