A Checklist of practical issues that a respondent's counsel should consider when defending an investigation at the US International Trade Commission (ITC) under Section 337 of the Tariff Act (19 U.S.C. § 1337). It covers important background on the nature of Section 337 litigation and key initial procedural considerations for a respondent's counsel to consider when preparing a response to the complaint, identifying defenses, crafting a discovery plan, and completing other administrative tasks.