Valid <track>s are listed under a character’s +sheet. Possible tracks include:
Default. All characters have this Track.
Possessed by Mages and Psychics
Possessed by those with the RESOURCES skill
Possessed by those with vehicles that have a Stunt cost.
Each <track> has 1 to 6 <slots>. Each ‘1’ slot can absorb 1 stress. A ‘3’ slot can absorb 3 stress. An open slot is represented by an ‘O’ and a used slot is represented by an ‘X’.