How WRC Scrutineers Track and Enforce Rally Tyre Allocations

Tracking Technology Built Into Competition Tyres

In the World Rally Championship, controlling how many and which tyres each crew uses requires a structured tracking system long before cars leave for a stage. For four-wheel-drive entries, regulations mandate that every competition tyre has a permanent Radio Frequency Identification chip embedded directly into its structure prior to vulcanisation. In addition to internal tags, tyres carry visible unique barcodes. The designated tyre partner supplies verified barcode registries under FIA oversight prior to pre-rally scrutineering, formally registering specific sets to individual entries such as P1 drivers.

Understanding this tracking protocol offers useful context for rally weekends, where tyre strategy directly shapes running order and road section management. With WRC tyre marking explained through these electronic identifiers, officials ensure that no team can introduce unallocated compounds or bypass event-specific quantity caps.

Verification Checkpoints and Service Exit Procedures

Physical verification takes place primarily at marked exit zones stationed as cars depart service parks, Tyre Fitting Zones, and Remote Service Zones. Dedicated inspection stations scan both RFID chips and barcodes to log tyres before crews embark on competitive road sections. A single team assistant per crew may enter these zones solely to assist with the scanning process, though this assistance is excluded during shakedown marking located in the Technical Zone before the start control.

Officials maintain the authority to perform conformity checks along the route, while tyre manufacturer representatives may inspect tyres and collect operating data at stage stop points. Regulations also prohibit loading or unloading complete wheels outside designated service areas, requiring any spare wheels carried from service to stay onboard until the next permitted zone. Using unregistered tyres on competitive stages results in a direct referral to the Stewards for penalties.

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