may allow for additional time to operate the demonstration project after the time to enroll new participants has expired for the purposes of evaluating the impacts of the demonstration projects. (4) Suspension authority With respect to the families participating in a demonstration project carried out under this subsection, the Secretary shall suspend compliance with any requirement under section 407 for families participating in the project which, if applied, would prevent the State from carrying out the demonstration project or prevent the State from effectively achieving the purposes of the project for the period during which the project is carried out. (5) Evaluation The Secretary, through grant, contract, or interagency agreement, shall evaluate the demonstration projects carried out under this subsection by comparing the employment, earnings, program participation, receipt of means-tested benefits or assistance, poverty, deep poverty, and other specific outcomes of families participating in the projects with the employment, earnings, and same specific outcomes for the families in the control groups for the projects. In addition, the evaluation shall analyze the relationships between engagement strategies, performance measures, and impacts of the engagement strategies, along with such other criteria as the Secretary determines appropriate. (6) Annual report Beginning October 1, 2021, and until all evaluations of the demonstration projects are complete, the Secretary shall annually submit to Congress reports containing— (A) analyses of the demographic characteristics of the individuals who participated in the demonstration projects carried out under this subsection with the demographics of the individuals in the control groups for the projects