; and (ii) to credit toward the 6-month period referred to in subparagraph (B) any days during which the individual installs and maintains an ignition interlock system on a motor vehicle pursuant to clause (i). (D) A law that— (i) requires the individual, if convicted of the offense, to undergo an alcohol abuse, substance abuse, or mental health assessment; and (ii) if the assessment indicates a need for treatment, authorizes the appropriate court (or monitoring agency) to require the individual to undergo treatment as part of the individual’s sentence in connection with the conviction or as a condition for reissuance of a State driver’s license to the individual. (E) A law that requires, if the individual is convicted of the offense and is the parent, guardian, or custodian of the child passenger or is otherwise legally responsible for the child passenger, the law enforcement agency that charges the individual with the offense or the appropriate court to file with the appropriate State register of child abuse a report on the individual concerning the offense. (2) Exceptions The Secretary may treat a State that has enacted and is enforcing the laws described in paragraph (1) as meeting the requirements of this subsection without regard to whether any of those laws waives the application of a sanction with respect to an individual who— (A) is a sibling of the child passenger; or (B) is under 21 years of age and is not a guardian of the child passenger. (c) Period of availability of withheld funds