How a Person Who Was Sentenced under the ACCA, 18 U.S.C. § 924(e), Would Likely Receive a Lower Sentence Today. § 851 or the career offender guideline at USSG § 4B1.1. Inmates, lawyers, judges, courts of appeals, and news reporters sometimes misuse the word “career offender,” which is a guideline classification, to refer to a person who ...