(March 2019) This primer addresses some common questions that have arisen in the context of relevant conduct. The answers are drawn from §1B1.3 (Relevant Conduct (Factors that Determine the Guideline Range)) and its commentary, other related portions of the Guidelines Manual, and applicable caselaw. This primer is not, however, intended as a comprehensive compilation of all case law addressing these issues. The selected case law focuses on Supreme Court and published circuit precedent, and generally includes only one authority from a given circuit even if the same court has addressed a particular issue more than once. Throughout the primer, examples based on those provided by the commentary to §1B1.3 are set out to accompany the discussion of the topics they illustrate.