This Act may be cited as the Safeguarding U.S. Supply Chains Act.

(a) Credit not allowed for components produced by foreign entities of concern Section 45X(d) of the Internal Revenue Code of 1986 is amended by adding at the end the following new paragraph: (5) Credit not allowed for components produced by foreign entities of concern No credit shall be allowed under this section with respect to any eligible component which is produced by a foreign entity of concern (as defined in section 9901(8) of the William M. Mac Thornberry National Defense Authorization Act for Fiscal Year 2021 (15 U.S.C. 4651(8)U.S. Code — Title 15, Section 4651(8)View official source on GovInfo)).. (b) Additional restrictions with respect to qualifying battery components Section 45X(c)(5) of such Code is amended by adding at the end the following new subparagraph: (C) Prohibition on certain involvement of foreign entities of concern The term qualifying battery component shall not include any battery component produced using technology designed, developed, manufactured, licensed, or supplied by a foreign entity of concern (as defined in section 9901(8) of the William M. Mac Thornberry National Defense Authorization Act for Fiscal Year 2021 (15 U.S.C. 4651(8)U.S. Code — Title 15, Section 4651(8)View official source on GovInfo)).. (c) Effective date The amendments made by this section shall apply to components produced and sold after the date of the enactment of this Act.