"For more than a decade, the United States has employed sanctions as a policy tool in response to activities of the Venezuelan government or Venezuelan individuals. These have included sanctions, including targeted sanctions against almost 90 individuals, related to terrorism, drug trafficking, trafficking in persons, antidemocratic actions, human rights violations, and corruption. Since 2006, U.S. officials have expressed concerns about Venezuela's lack of cooperation on anti-terrorism efforts. Since then, the Secretary of State has made an annual determination that Venezuela is not 'cooperating fully with United States anti-terrorism efforts' pursuant to Section 40A of the Arms Export Control Act (22 U.S.C. 2781). The most recent determination was made in May 2018. As a result, the United States has prohibited all U.S. commercial arms sales and retransfers to Venezuela since 2006."
CRS In Focus, IF10715
Congressional Research Service: https://crsreports.congress.gov/