The Pit Lane Procedures have been formally updated in the regulations, in line with the Race Direction pitlane entry protocol issued ahead of the French Grand Prix.
In all track sessions including races, the only permitted pit lane entry and exit is by using the designated entry/exit point and route, defined by the broken white line, following the pit lane entry road and crossing the designated pit lane entry timing point. In all cases the specific information issued by Race Direction for each circuit applies defining prohibited routes. In case the broken white line is not crossed or the full pit lane entry/exit road is not used, the Stewards may penalise as appropriate.
The full GPC doc can be found HERE!