Creates the First Responder Trauma-Informed Response Training Act, which may be referred to as Anna's Law. Provides that, prior to the onboarding processes of a first responder, the individual must complete mandatory pass or fail trauma-informed response training, as established by the Department of Public Health. Provides that a first responder must also complete the pass or fail trauma-informed response training every 18 months after beginning work as a first responder. Provides that, if more than 18 months have elapsed after beginning work as a first responder and the first responder has not completed the retraining, the first responder may not perform trauma-related duties, such as responding to emergency calls, taking statements from victims, or interviewing victims. Provides that, if a first responder who is certified or licensed by the State or a subdivision of the State has not completed the required trauma-informed response retraining, the first responder may be decertified by the certifying entity or the first responder's license may be revoked by the licensing entity if retraining is not completed. Limits the concurrent exercise of home rule powers. Defines terms. Makes conforming changes in the Illinois Police Training Act and the Emergency Medical Services (EMS) Systems Act, including requiring the Department of Public Health to adopt rules to implement the trauma-informed response training and providing that the rules may allow or require the use of a training program from a university, college, or not-for-profit entity.