Designated sections of the track where overtaking is permitted. In novice HPDE groups, passing is typically restricted to straights only and requires a point-by from the car being overtaken.
The HPDE Curriculum Guide lists specific performance outcomes for passing: "206. Describe designated passing zones and protocols (F). 207. Signal correctly to allow faster cars to pass on right or left (F). 208. Execute safe passes in designated zones when giving or receiving a point-by (F). 209. Demonstrate good judgment with regard to waving off an offered point-by (F). 210. Modulate the throttle as necessary to facilitate safe and efficient passes (F)." The curriculum also teaches drivers to "communicate effectively with other drivers (e.g., tap the rearview mirror to signal I see you, position the car to allow room for the pass)." Passing zones are typically on straights where speed differentials are safest to manage.