Formula 1 will officially switch to a 1.6-litre V6 engine format from 2014 after proposals finalised by the sport's stakeholders during last weekend's European Grand Prix were rubber-stamped by the FIA's World Motor Sport Council on Wednesday.
According to a statement from the sport's governing body, WMSC members agreed in a fax vote to formalise the new turbo-charged engines, which will feature energy recovery units.
The statement read: "Following a fax vote by its members, the World Motor Sport Council has ratified the engine regulations recently drawn up in consultation with the main stakeholders in Formula One.
"The new power plant will be a V6 1.6 turbo unit with energy recovery systems. This new formula will come into effect as from the start of the 2014 FIA Formula One World Championship season."
F1's teams and the FIA were in deadlock over the engine situation for several weeks until agreement was reached during a Formula 1 Commission meeting prior to the European Grand Prix weekend to delay introducing the regulations by a year to 2014.
The new plans also featured a change in the format from a four cylinder engine to a six cylinder unit - Ferrari having been against the former on marketing grounds. Mercedes and Cosworth had also voiced concerns about development costs. F1 technical chiefs then met in Valencia to give their formal backing to the V6, 1.6-litre plan.
The teams indicated after the Valencia gathering that they would ask for a rise in the proposed rev limit of 12,000rpm to 15,000rpm. It remains unclear whether this was included in the ratified plans. Similarly it is not known whether a request to delay the introduction of new chassis rules set for 2013 - to coincide with the new engine plan - has been successful.