1.  Ability.  Each skater shall know the range of that skater's ability to travel while on roller skates and shall skate within the limits of that ability.  

2.  Control.  Each skater shall maintain control of the skater's speed and course at all times when skating and be alert and observant as to the inherent dangers described in section 607. Except when the skater is taking part in an organized team sport during practice, scrimmage, games, clinics or an officially sanctioned skating or roller derby event, a skater attempting to overtake other skaters shall do so in a manner that avoids collision with objects and other skaters in that skater's field of vision.