(A) IDENTIFIED CIRCUMSTANCES.—This subpart (Chapter Five, Part K, Subpart 2 (Other Grounds for Departure)) identifies some of the circumstances that the Commission may have not adequately taken into consideration in determining the applicable guideline range (e.g., as a specific offense characteristic or other adjustment). If any such circumstance is present in the case and has not adequately been taken into consideration in determining the applicable guideline range, a departure consistent with 18 U.S.C. § 3553(b) and the provisions of this subpart may be warranted.
(B) UNIDENTIFIED CIRCUMSTANCES.—A departure may be warranted in the exceptional case in which there is present a circumstance that the Commission has not identified in the guidelines but that nevertheless is relevant to determining the appropriate sentence.
(3) DEPARTURES BASED ON CIRCUMSTANCES PRESENT TO A DEGREE NOT ADEQUATELY TAKEN INTO CONSIDERATION.—A departure may be warranted in an exceptional case, even though the circumstance that forms the basis for the departure is taken into consideration in determining the guideline range, if the court determines that such circumstance is present in the offense to a degree substantially in excess of, or substantially below, that which ordinarily is involved in that kind of offense.
(4) DEPARTURES BASED ON NOT ORDINARILY RELEVANT OFFENDER CHARACTERISTICS AND OTHER CIRCUMSTANCES.—An offender characteristic or other circumstance identified in Chapter Five, Part H (Offender Characteristics) or elsewhere in the guidelines as not ordinarily relevant in determining whether a departure is warranted may be relevant to this determination only if such offender characteristic or other circumstance is present to an exceptional degree.
(b) DOWNWARD DEPARTURES IN CHILD CRIMES AND SEXUAL OFFENSES.—Under 18 U.S.C. § 3553(b)(2)(A)(ii), the sentencing court may impose a sentence below the range established by the applicable guidelines only if the court finds that there exists a mitigating circumstance of a kind, or to a degree, that—
(1) has been affirmatively and specifically identified as a permissible ground of downward departure in the sentencing guidelines or policy statements issued under section 994(a) of title 28, United States Code, taking account of any amendments to such sentencing guidelines or policy statements by act of Congress;
(2) has not adequately been taken into consideration by the Sentencing