# § 998. Definitions
As used in this chapter—
**(a)** “Commission” means the United States Sentencing Commission;
**(b)** “Commissioner” means a member of the United States Sentencing Commission;
**(c)** “guidelines” means the guidelines promulgated by the Commission pursuant to section 994(a) of this title; and
**(d)** “rules and regulations” means rules and regulations promulgated by the Commission pursuant to section 995 of this title.
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**Source Credit**: (Added Pub. L. 98–473, title II, § 217(a), Oct. 12, 1984, 98 Stat. 2026.)
## Statutory Notes and Related Subsidiaries
### Effective Date
Section effective , see , set out as an Effective Date; Savings Provision note under , Crimes and Criminal Procedure.