F1 is finally set to vote on the regulations for the new power units in 2026 in the coming weeks after the FIA World Motor Sport Council provided an update at its latest meeting.
The regulations have been delayed in their ratification due to the ongoing work between the FIA, F1, new and old power unit manufacturers.
The WMSC said in a statement: "The World Council was given an update on the progress of the 2026 Power Unit Regulations, which are due to be finalised and presented before the next World Motor Sport Council meeting, following considerable work and consultation between the FIA, Formula 1, the incumbent Power Unit manufacturers and potential newcomers."
It is understood that the final vote by the interested parties, as part of the F1 Commission, will take place over the coming weeks, before final ratification is given at the next WMSC meeting in October.
The debate over the regulations has been bumpy, with compromises needing to be reached over concessions for prospective OEMs in the shape of Audi and Porsche, both of which are set to join in tandem with the new regulation set.
FIA approves fuel and engine regulation change
The WMSC has agreed to change F1's regulations around fuel and engines.
Teams are now permitted to chill fuel to 20 degrees Celsius at hotter races, with the temperature reference taken an hour in advance of the session.
Red Bull almost fell foul of the previous minimum temperature limit, whilst in Miami, both Aston Martins were forced to start from the pit lane having failed to meet the fuel temperature requirements before the exit of the pit lane was closed.
Meanwhile, the regulation surrounding the changing of power units in parc fermé has been updated, with teams allowed to replace a power unit with one of a newer specification.
A provision has also been made to allow temporary repairs to be made to power units.
Other changes to the sporting and technical regulations include an update to deflection tests for the rear wing mainplane trailing edge, as well as beam wing flexibility.