McLaren's transition from Renault engines to Mercedes next year will be closely monitored by the FIA to ensure the team does not gain an advantage from revising its chassis design.
McLaren will use Mercedes engines from 2021 onwards and had originally planned for the new deal to coincide with Formula One's major regulation changes the same year.
However, as a cost-saving measure to protect all teams from the financial impact of the coronavirus pandemic, the new regulations have been delayed until 2022 and teams will be forced to use their 2020 chassis in 2021.
That means McLaren will have to adapt its current chassis, which was originally designed with the Renault engine in mind, to fit the Mercedes power unit next year.