Northern Lights is not specific to one field of martial arts, though the strongest influences come from Chinese Kung Fu. The three major influences in the Northern Lights training program are Northern Shaolin, with specialization in Eagle Claw, Kukkiwon style Taekwondo, and Jow Ga, a southern family of Kung Fu.
In addition to the three primary influences, the Northern Lights encyclopedia draws upon various other sources and systems. If the techniques of a particular system are authentic and effective (developed over time and tested in competition or combat) they have something to offer to open-minded students.