FIA reports US GP practice checks complied with 2026 rules

In a report dated 23 October, FIA technical delegate Jo Bauer reported that every item covered by checks before, during and after the first two free practice sessions at the United States Grand Prix complied with the 2026 Formula One Technical Regulations.

The checks included tyre pressures, fuel-flow measurements and a range of power-unit parameters. Fuel and engine-oil samples were taken from cars 18 and 27. The report said the sampled fuels matched those previously approved for the relevant competitors, fuel-density changes remained within permitted limits, and the oils were consistent with approved reference samples.