(a) SL positions are positions classified above GS-15 pursuant to 5 U.S.C. 5108 that are not covered by other pay systems (e.g. the SES and ST systems).

(b) Positions in agencies that are excluded from 5 U.S.C. chapter 51 (Classification) under section 5102(a), or positions that meet one of the exclusions in section 5102(c), are excluded from the SL system.

(c) SL positions in the executive branch are in the competitive service unless the position is excepted by statute, Executive order, or the Office of Personnel Management (OPM).