On December 21, 2018, President Donald J. Trump signed the First Step Act of 2018 into law. Title I of the First Step Act of 2018 (FSA or the Act) is focused on reforms to reduce recidivism among the federal prison population. Many of Title I's reforms hinge on the creation of a risk and needs assessment system. Under the FSA, the Attorney General is charged with developing and releasing a risk and needs assessment system for use in the federal prison system. With this report, Attorney General William P. Barr releases the First Step Act of 2018 Risk and Needs Assessment System. This report outlines the work of the Department of Justice to develop and implement the Risk and Needs Assessment System (System). It also introduces the new System that the Federal Bureau of Prisons will deploy in its facilities. And the report announces the Department of Justice's strategic plan to evaluate, validate, and enhance the System over time.