USATT Coaching Certification Levels
Youth Instructor Level (IN):	Intended for coaches in other sports or physical education teachers who want an insight on how to teach table tennis to beginning juniors in a structured program. Not for table tennis players.
ClubLevel (C):	Able to teach beginner adults and juniors up to a USATT rating level of 1250.
State Level (S):	Able to teach intermediate adults and juniors from 1250 up to a USATT rating level of 1750.
Regional Level (R):	Able to teach intermediate adults and juniors from 1750 up to a USATT rating level of 2250.
National Level (N):	Able to teach advanced players up to and above a USATT rating level 2250 and National Team level players.

List is as of May 2008. Note - USATT coaches are required to be USATT members;
Coaches who are not USATT members are not listed.