This legislation, titled the "Guard and Reserve GI Bill Parity Act of 2025," significantly expands eligibility for the Post-9/11 Educational Assistance program by amending title 38 of the United States Code. It specifically includes various types of full-time service performed by members of the National Guard, such as full-time National Guard duty and other forms of active duty as defined in title 32 of the U.S. Code. The bill aims to provide greater parity in educational benefits for National Guard members who perform substantial periods of service, ensuring their contributions are recognized. While the amendments take effect one year after enactment, they will apply retroactively to all qualifying service performed on or after September 11, 2001 . Existing time limitations for using educational assistance entitlement will apply to these newly eligible benefits, consistent with the original 2008 Post-9/11 GI Bill Act.