FIA approves 2026 F1 regulation tweaks and first issue of 2027 rules

The FIA has confirmed a fresh set of amendments to Formula 1’s 2026 regulations, while also approving the “first issue” of the 2027 rules following the World Motor Sport Council meeting in Macau.

2026 rules adjusted on heat, grip and visibility

The WMSC has rubber-stamped a change to the declaration of a heat hazard, which may now be split between a Sprint and a grand prix. The declaration must still be made 24 hours before the scheduled start time.

The FIA has also reintroduced boost mode in specific safety-related conditions. In low-grip situations when the track is wet, or when visibility is poor, boost mode may be used — but only to prevent a car from suffering a power reduction, not to increase its power output. In those same conditions, overtake mode has been disabled.

That distinction is important: the change is framed around safety and drivability rather than creating an extra performance tool. It also underlines the FIA’s continuing effort to clarify how power deployment should operate when conditions become marginal.

2027 framework receives first formal approval

For 2027, pre-season testing has been increased from three days to four days in total. The WMSC has also ratified the first issue of the 2027 technical regulations, described as a broad package of “structural, wording, and targeted technical updates” intended to improve clarity, consistency and enforceability, while incorporating key learnings from the 2026 season.

The council also passed proposed changes to engine power output from 2027, as F1 moves away from the 50:50 internal combustion engine-to-battery split. By 2028, that balance will become 60:40, with updates covering internal combustion engine output, fuel energy flow, energy recovery system deployment and greater flexibility in energy management.

Additional measures were agreed on power unit supply, reconnaissance lap management, race distances at selected circuits and financial regulatory changes tied to the 2027-28 technical and sporting package.

FIA president Mohammed Ben Sulayem said: “The FIA continues to oversee the evolution of the 2026 Regulations and work closely with all key stakeholders across the motorsport community.”

He added that regulatory development does not stop once cars reach the track, stressing the need to balance innovation, sustainability, performance and fan appeal as discussions continue on future power unit concepts, including V8 engines powered by sustainable fuels.