How WRC Scrutineers Track Tyre Quotas and Prevent Unauthorised Rubber

Factory-Embedded Identifiers

In the FIA World Rally Championship, controlling which tyres reach competitive stages begins long before a car rolls out to a special stage. For four-wheel-drive entries, regulations mandate that every competition tyre features a permanent Radio Frequency Identification (RFID) chip embedded inside its structure prior to vulcanisation. Alongside these chips, tyres carry unique barcodes that the designated supplier submits to the FIA under technical oversight, tying specific sets directly to individual competitor cars.

Checkpoint Audits and Stage Monitoring

Enforcing these limits relies on routine scanning procedures established at exit checkpoints across service parks, tyre fitting zones, and remote service areas. Scrutineers scan the barcodes and RFID data to confirm that crews depart only on registered compounds allocated for that specific entry. To understand how officials systematically log and police these allocations throughout an event, having the full WRC tyre marking explained clarifies how digital verification prevents teams from circumventing sporting quotas.

Scrutineers also retain the authority to verify conformity along the route, while tyre manufacturer representatives monitor wear and gather operating metrics at stage finishes. Because complete wheels cannot be swapped or abandoned between sanctioned service zones, any use of unregistered or non-conforming tyres across competitive stages is referred directly to the event Stewards for penalty enforcement.

Official reference: https://www.fia.com/system/files/documents/wrc_2026_sr_version_13_january_2026.pdf.