Norris has capitalised on his Red Bull counterpart's slump in form to reduce the gap at the top of the standings to just 52 points with six races remaining, and is the man in form going into the final stages of the campaign.
The most recent of those podium finishes came at last month's Singapore GP, where he placed behind Verstappen and race winner Norris.
Despite a near one-month break since they took to the Marina Bay Street Circuit, a late document from the FIA has now revealed that an extensive physical inspection was carried out on the 23-year-old's car after the race in Singapore.
The McLaren's components relating to the gearbox were subject to examination, but ultimately given the green light.
In an official document issued by the FIA as part of the United States GP weekend, it was confirmed that the vehicle was not in breach of F1 technical regulations.