Para-equestrian classification 4, 5, 6, 7, 12a/b, 13, 14, 21, 26a, 31a/b and 32 are allowed to have a whip which is held or used by a groom. Grade 1 drivers with Profiles 1, 2, 3, 4, 5, 6, 7, 9, 10a, 12a/b, 13, 14, 26a, 31a/b and 32 are allowed to have a brake operated by a groom. Grade 1 drivers with Profiles 1, 2, 3, 4, 5, 6, 7, 9, 10a, 12a/b, 13, 14, 26a, 31a/b and 32 are allowed to have a strap on feet or foot trough. Grade II is for riders who are higher functioning than Grade
3–3–5 defense they are a relatively fast but smaller unit compared to the opposing offense, and they want to cause blocking assignment issues for that offense. Also, a 3-3-5 can be adjusted to a 4-3, 3-4, or 4-4 defense with the same starting players. To effectively play the 3-3-5, the "Front 8" (e.g. the eight defensive players closest to the line of scrimmage) must be physical and tough. The three down lineman must be able to control the running lanes, execute an effective pass rush, and be able to keep the opposing offensive line occupied so that the linebackers can make plays.