; or (2) is knowingly owned or controlled by, or knowingly acts or purports to act for or on behalf of, directly or indirectly, a person that engages in significant transactions described in paragraph (1). 237. Sanctions for violations by the Russian Federation of freedom of navigation (a) Determination of violation (1) In general Not later than 90 days after the date of the enactment of Ukraine Foreign Assistance Integrity and Accountability Act of 2019 , and every 180 days thereafter, the Secretary of State shall determine and certify to the committees specified in subsection (d) whether the Government of the Russian Federation, including the armed forces or coast guard of the Russian Federation, has interfered with the freedom of navigation of one or more vessels in the Kerch Strait or elsewhere in a manner inconsistent with international law during the 180 days preceding the certification. (2) Publication of certification Not later than 15 days after submitting a certification under paragraph (1), the Secretary shall publish the certification in the Federal Register. (b) Imposition of sanctions On and after the date that is 90 days after the publication of a certification under paragraph (2) of subsection (a) indicating that the Government of the Russian Federation has interfered with the freedom of navigation of one or more vessels as described in paragraph (1) of that subsection, all entities operating in the shipbuilding sector of the Russian Federation shall be subject to the same restrictions as an entity included on the list of specially designated nationals and blocked persons maintained by the Office of Foreign Assets Control of the Department of the Treasury. (c) Removal of sanctions The restrictions imposed pursuant to subsection (b) shall remain in effect until the date on which the Secretary of State determines and certifies to the committees specified in subsection (d) that— (1) the Government of the Russian Federation, including the armed forces and coast guard of the Russian Federation, has not