; or (ii) a commercial vehicle. (b) Laws requiring ignition interlock devices A State meets the requirements of this subsection if the State has enacted and is enforcing a law that requires throughout the State the installation of an ignition interlock device for a minimum of 180 days on each motor vehicle operated by an individual who is convicted of driving while intoxicated or driving under the influence. (c) Withholding of funds for noncompliance (1) Fiscal year 2019 On October 1, 2018, the Secretary shall withhold 1 percent of the amount required to be apportioned to a State under each of paragraphs (1) and (2) of section 104(b) if the State does not meet the requirements of subsection (b) of this section. (2) Fiscal year 2020 On October 1, 2019, the Secretary shall withhold 3 percent of the amount required to be apportioned to a State under each of paragraphs (1) and (2) of section 104(b) if the State does not meet the requirements of subsection (b) of this section. (3) Fiscal year 2021 and thereafter On October 1, 2020, and on October 1 of each fiscal year thereafter, the Secretary shall withhold 5 percent of the amount required to be apportioned to a State under each of paragraphs (1) and (2) of section 104(b) if the State does not meet the requirements of subsection (b) of this section. (d) Period of availability of withheld funds