; (2) housing of incarcerated pregnant women; (3) nutritional requirements for incarcerated pregnant women; and (4) the right of a health care professional to request that restraints not be used. 10. GAO study on State and local correctional facilities The Comptroller General of the United States shall conduct a study of services and protections provided for pregnant incarcerated women in local and State correctional settings, including policies on obstetrical and gynecological care, education on nutrition, health and safety risks associated with pregnancy, mental health and substance use treatment, access to prenatal and post-delivery support services and programs, the use of restraints and restrictive housing placement, and the extent to which the intent of such policies are fulfilled. 11. GAO study on Federal pretrial detention facilities (a) Study The Comptroller General of the United States shall conduct a study of services and protections provided for pregnant women who are incarcerated in Federal pretrial detention facilities. Specifically, the study shall examine— (1) what available data indicate about pregnant women detained or held in Federal pretrial detention facilities; (2) existing U.S. Marshals Service policies and standards that address the care of pregnant women in Federal pretrial detention facilities