The radio ban introduced at the start of the 2016 season will be scrapped ahead of this weekend's German Grand Prix, following a meeting of the F1 Strategy Group on Thursday in Geneva.
The FIA introduced the ban in a bid to ensure that a driver drives the car "alone and unaided", but the rule has come under fire recently after Nico Rosberg was dropped from second to third by race stewards in Britain after he was given an instruction to save his gearbox.
A race later, McLaren's Jenson Button was penalised with a drive-through after his team gave him information about his brakes.
On Thursday, the six leading team bosses met with Bernie Ecclestone and FIA president Jean Todt to discuss the matter, with the FIA agreeing to unrestricted radio messages during the race, with only the formation lap and race start restricted to no radio communication at all.
"At the request of the Teams and Commercial Rights Holder, the FIA has agreed to adopt a more liberal approach to the interpretation of Article 27.1 (that a driver must drive the car "alone and unaided")," read a statement.
"With the exception of the period between the start of the formation lap and the start of the race, there will be no limitations on messages teams send to their drivers either by radio or pit board.
"This approach is aimed at providing improved content for fans and spectators, as teams will now be required to provide the Commercial Rights Holder with unrestricted access to their radio messages at all times that their cars are out of the garage."
The regulation doesn't require World Motor Sport Council ratification as the details of Article 27.1 aren't written into the regulations, but were issued to teams by Charlie Whiting as a technical directive.
