Formula One will move away from plans to introduce the 'Halo' cockpit protection, having opted to move forward with implementing a 'shield' on the front of cars.
'Halo' systems, which protect drivers heads with a metal frame over the cockpit, were routinely tested during the 2016 season - with Red Bull's 'aeroscreen' the only other apparatus put forward by teams.
Red Bull's device reportedly failed FIA evaluations, which led to 'Halo' being favoured for implementation by the 2018 season.
However, the FIA revealed on Tuesday that a meeting of the F1 Strategy Group and F1 Commission had prompted a U-turn.
A statement read: "A number of more integrated solutions for additional frontal protection have been studied, and the decision has been taken to give priority to the transparent 'shield' family of systems.
"The FIA aims to carry out track tests of this system during this season in preparation for implementation in 2018."
The FIA also revealed that 'T-wings' and 'shark' fins that have emerged on this season's cars will be "strictly limited" from 2018.
The T-wing of Valtteri Bottas' Mercedes has twice fallen off this season, one such instance causing Red Bull an estimated £50,000 worth of damage after Max Verstappen ran over it in Bahrain.