The U.S. Treasury Department adds the Persian Gulf Strait Authority to its sanctions list for Iran-related activity, according to the department’s website. The authority is placed on the Specially Designated Nationals (SDN) list, a U.S. designation that restricts dealings with entities identified as supporting or facilitating certain activities tied to Iran.

Multiple reports state the action is carried out on Wednesday and that the listing is reflected on Treasury’s online notice. The Persian Gulf Strait Authority is described as a body Iran created to manage requests for passage through the Strait of Hormuz, a strategic waterway in the Persian Gulf.

The reports do not provide additional details in the excerpts about the specific rationale beyond its association with Iran’s management of Hormuz transit. The designation is part of broader U.S. Iran-related sanctions efforts that target organizations and activities the United States views as connected to Iran’s regional conduct.