This legislative proposal aims to impose sanctions on foreign individuals or entities involved in infrastructure projects connecting the Russian mainland to the Crimean peninsula. Specifically, it targets those who knowingly participate in the construction, maintenance, or repair of any tunnel or bridge in this region. This action is a response to Russia's 2014 annexation of Crimea and its subsequent use of the territory as a strategic base for its full-scale invasion of Ukraine, including recent reports of discussions for a new tunnel. The sanctions outlined in the bill are comprehensive. They include the blocking of assets and interests in property of the foreign person if such assets are within the United States or under the control of a U.S. person. Additionally, foreign persons subject to these sanctions will be deemed inadmissible to the United States , ineligible for visas, and any existing visas will be revoked. The bill provides several exceptions to these sanctions, covering actions necessary to comply with international obligations and the provision of humanitarian assistance , such as the sale of food or medicine. Sanctions also do not apply to authorized U.S. intelligence, law enforcement, or national security activities. The President retains the authority to waive the application of sanctions if it is deemed important to the national security interests of the United States, provided Congress is notified.