The main purpose of this legislation is to officially designate the General George C. Marshall House in Virginia as an affiliated area of the National Park System. This designation aims to enhance public awareness and appreciation of the significant historical contributions made by George C. Marshall, a prominent U.S. military leader and statesman. Key provisions of the legislation include the establishment of the General George C. Marshall House as an affiliated area, which will be managed in accordance with the laws that govern the National Park System.