1. Short title This Act may be cited as the Zero-Emission Vehicles Act of 2018 . 2. National zero-emission vehicle standard (a) National zero-Emission vehicle standard Part A of title II of the Clean Air Act ( 42 U.S.C. 7521 et seq.) is amended by adding at the end the following: 220. National zero-emission vehicle standard (a) Definitions In this section: (1) Base quantity of new passenger vehicle sales The term base quantity of new passenger vehicle sales means the total quantity of new passenger vehicles sold by a vehicle manufacturer during the most recent calendar year. (2) Passenger vehicle The term passenger vehicle has the meaning given the term passenger motor vehicle in section 32101 of title 49, United States Code. (3) Qualified electric vehicle The term qualified electric vehicle means a passenger vehicle that is— (A) a new qualified hybrid motor vehicle (as defined in section 30B(d)(3) of the Internal Revenue Code of 1986); or (B) a new qualified plug-in electric drive motor vehicle (as defined in section 30D(d) of the Internal Revenue Code of 1986). (4) Retire The term retire , with respect to a zero-emission vehicle credit, means to disqualify the zero-emission vehicle credit for any subsequent use under this section, including sale, transfer, exchange, or submission in satisfaction of a compliance obligation. (5) Vehicle manufacturer (A) In general The term vehicle manufacturer means an entity that— (i) engaged in the manufacturing of new passenger vehicles; and (ii) sold not fewer than 100 new passenger vehicles to ultimate purchasers, either directly or through an affiliate, such as a dealer. (B) Exclusions The term vehicle manufacturer does not include— (i) a motor vehicle parts supplier