Prerequisite(s) trained in Survival
Tracking is second nature to you, and when necessary you can follow a trail without pause. You can Track while moving at full Speed by taking a -5 penalty to your Survival check.
If you're a master in Survival, you don't take the -5 penalty.
If you're legendary in Survival, you no longer need to roll a new Survival check every hour when tracking, though you still need to roll whenever there are significant changes in the trail.