1. Short title This Act may be cited as the Horse Transportation Safety Act of 2017 . 2. Transportation of horses Section 80502 of title 49, United States Code, is amended— (1) in subsection (c), by striking This section does not and inserting Subsections (a) and (b) shall not ; (2) by redesignating subsection (d) as subsection (e); (3) by inserting after subsection (c) the following: (d) Transportation of horses (1) Prohibition No person may transport, or cause to be transported, a horse from a place in a State, the District of Columbia, or a territory or possession of the United States through or to a place in another State, the District of Columbia, or a territory or possession of the United States in a motor vehicle containing 2 or more levels stacked on top of each other. (2) Motor vehicle defined In this subsection, the term motor vehicle — (A) means a vehicle driven or drawn by mechanical power and manufactured primarily for use on public highways; and (B) does not include a vehicle operated exclusively on a rail or rails. ; and (4) in subsection (e), as redesignated— (A) by striking A rail carrier and inserting the following: (1) In general A rail carrier ; (B) by striking this section and inserting subsection (a) or (b) ; and (C) by striking On learning and inserting the following: (2) Transportation of horses in multilevel trailer (A) Civil penalty A person that knowingly violates subsection (d) is liable to the United States Government for a civil penalty of at least $100, but not more than $500, for each violation. A separate violation of subsection (d) occurs for each horse that is transported, or caused to be transported, in violation of subsection (d). (B) Relationship to other laws The penalty imposed under subparagraph (A) shall be in addition to any penalty or remedy available under any other law or common law. (3) Civil action On learning .