; and (2) shall be activated when the vehicle motor is deactivated by the operator. (d) Phase-in The rule issued pursuant to subsection (b) shall require full compliance with the rule beginning on September 1st of the first calendar year that begins 2 years after the date on which the final rule is issued. . (2) Clerical amendment The analysis for chapter 323 of title 49, United States Code, is amended by striking the item relating to section 32304A and inserting the following: 32304A. Consumer tire information and standards. 32304B. Child safety. . (b) Awareness of children in motor vehicles Section 402 of title 23, United States Code, is amended by inserting after subsection (k) the following: (l) Unattended passengers (1) In general Each State shall use a portion of the amounts it receives under this section to carry out a program to educate the public on the risks of leaving a child or unattended passenger in a vehicle after the vehicle motor is deactivated by the operator. (2) Program placement A State does not need to carry out the program described in paragraph (1) through the State transportation or highway safety office. . (c) Study and report (1) Independent study (A) Agreement (i) In general The Secretary of Transportation shall enter into an agreement or a contract with an independent third-party that does not have any financial or contractual ties with passenger motor vehicle manufacturers or technology companies producing child reminder alert systems to perform the services under this paragraph. (ii) Timing The Secretary shall enter into the agreement or contract described in clause (i) not later than the date that the Secretary determines is the latest date by which completion of the services under this paragraph will allow the Secretary enough time to prepare and submit the study required under paragraph (2) in accordance with such paragraph. (B) Independent study (i) In general Under an agreement between the Secretary and an independent third-party under this paragraph, the independent