Although formal confirmation of the e-vote outcome is not expected to be made until later on Friday, it is understood that the plan agreed by manufacturers before the Chinese Grand Prix has received enough support to go through.

Hopes of the idea being approved at the F1 Commission meeting earlier this week had to be abandoned after absence of key members meant there was no quorum present to allow a vote to take place.

As previously reported by Motorsport.com, the engine manufacturers' agreement involves a long-term plan to reduce the number of power units to three per driver from 2018.

There will also be more standard parts, common installation of energy storage and control electronics and other moves to bring down development costs.

The outline plan is for customer costs to come down by one million Euro next year and a further three million Euro for 2018.

In a bid to equalise performance – so engines are only separated by a few tenths per lap – turbo boost could be limited to ensure a more level playing field.

There will also be a commitment from manufacturers to guarantee supply of power units at a fixed cost for all teams, in the wake of the Red Bull hunt for engines last year.

The approval of the engine plans, with the backing of the FIA, means that the independent engine concept that was mooted last year now appears to be off the table.

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