designs using random assignment or other research methodologies that allow for the strongest possible causal inferences when random assignment is not feasible. (d) Progress Report (1) Submission of report The independent evaluator shall— (A) not later than two years after a project has been approved by the lead agency and biannually thereafter until the project is concluded, submit to the head of the relevant agency and the Council a written report summarizing the progress that has been made in achieving each outcome specified in the contract at the appropriate quantitative level