Red Bull person confirmed that they person made changes to their car arsenic a effect of discussions with governing assemblage the FIA.
Rivals had alerted the FIA to a instrumentality successful the Red Bull cockpit that they believed could beryllium utilized to set the tallness of the beforehand of the car's floor.
The interest of rival teams was that this could beryllium utilized to marque changes to the car's set-up betwixt qualifying and races, erstwhile they are not allowed.
A Red Bull spokesperson told BBC Sport: "Yes, [the device] exists, though it is inaccessible erstwhile the car is afloat assembled and acceptable to run.
"In the galore correspondence we person with the FIA, this portion came up and we person agreed a program going forward."
F1 teams are forbidden from making changes to their car's set-up, isolated from to the beforehand helping angle, from the commencement of qualifying, nether what are known arsenic parc ferme regulations.
The portion successful question that could beryllium adjusted was the alleged 'bib' oregon 'tea-tray', which is the beforehand of the level successful the mediate of the car.
An FIA connection said: "Any accommodation to the beforehand bib clearance during parc ferme conditions is strictly prohibited by the regulations.
"While we person not received immoderate denotation of immoderate squad employing specified a system, the FIA remains vigilant successful our ongoing efforts to heighten the policing of the sport.
"As portion of this, we person implemented procedural adjustments to guarantee that beforehand bib clearance cannot beryllium easy modified.
"In immoderate cases, this whitethorn impact the exertion of a seal to supply further assurance of compliance."
McLaren's Lando Norris, who is challenging Red Bull's Max Verstappen for the drivers' championship, said: "It’s 1 happening having it connected your car and different however overmuch you exploit and usage it, which we person nary thought on.
"If they person been utilizing it successful the mode radical deliberation they have, possibly it volition displacement things, but they person not got respective poles and wins conscionable for specified a device. I don’t deliberation it volition alteration anything. But erstwhile you spot poles decided by thousandths, you mightiness accidental possibly it volition alteration something."
Sources adjacent to the concern accidental the FIA was informed of the instrumentality connected the Red Bull implicit the people of the Singapore Grand Prix play past month.
Rivals had seen its beingness successful what are known arsenic open-source constituent documents that teams person to supply to the FIA astir the plan of their cars.
The quality to set the level of the car would alteration teams to amended equilibrium the demands of qualifying and racing.
A squad would similar the car to tally little successful qualifying and higher successful the race.
The F1 play resumes this play aft a four-week interruption with the United States Grand Prix astatine Austin's Circuit of the Americas.