From the Slow Foxtrot "Learn the Dances" section of this site:-
"Continuity. Continuity is defined as the continuous passing of the feet from step to step, without any closing or chasse actions. Typically, a series of three or more passing steps constitute a continuity action. Continuity movements are introduced in the Silver level of Foxtrot, and are almost entirely absent in the Bronze level. In fact, in American style dance competitions, continuity is expressly prohibited in the Bronze level."