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The Fédération Internationale de l'Automobile (FIA), the governing body of motorsport, assigns grades to racing circuits from one to six. To host an F1 race, a track must be graded as Grade One. This process involves submitting detailed documentation to a country's national sporting authority, which may later approve and send it to the FIA for inspection.
To ensure everything is in order, the FIA charges a fee for the inspection of the circuit and conducts a project study. If any modifications or improvements are necessary, these are recommended by the FIA during inspection. A crucial deadline for new circuits is that they must undergo their final inspection at least 90 days before an official F1 weekend.