This legislation seeks to expand eligibility for the Department of Defense Military Retirement Fund to include retired members of the commissioned corps of the National Oceanic and Atmospheric Administration and the Public Health Service . Its primary purpose is to ensure that these uniformed servicemembers receive their retired pay from this central fund, aligning their retirement benefits with those of other military branches. To achieve this, the bill amends Title 10 of the U.S. Code, the National Oceanic and Atmospheric Administration Commissioned Officer Corps Act of 2002, and the Public Health Service Act. The bill makes significant changes to the administration and funding of the Military Retirement Fund. It redefines "uniformed services" within Title 10 to explicitly encompass the NOAA and PHS commissioned corps, affecting provisions related to retired lists, fund purpose, and survivor benefits. Furthermore, it mandates that the Board of Actuaries, in consultation with the Secretaries of Commerce and Health and Human Services, determine the unfunded liability attributable to past service by NOAA and PHS commissioned officers by January 1, 2027, and establish an amortization schedule for its liquidation. These amendments ensure proper financial contributions and oversight for the newly included services.