some or all of the units in a building for low-income tenants in return for a federal government guarantee to make up the difference between the tenant's contribution and the rent amount in the owner's contract with the government. A tenant who leaves a subsidized project will lose access to the project-based subsidy. The United States Department of Housing and Urban Development (HUD) and the United States Department of Veterans Affairs (VA) have created a program called Veterans Affairs Supportive Housing (VASH), or HUD-VASH, which distributes roughly 10,000 vouchers per year at a cost of roughly $75 million per year to eligible homeless and otherwise vulnerable U.S. armed forces veterans. This program was created in 2008 to pair HUD-funded vouchers with VA-funded services such as health care, counseling, and case management. History Federal housing assistance programs started during the Great Depression. In the 1960s and 1970s, the federal government created subsidy programs to increase the production of low-income housing and to help families pay their rent. In 1965, the Section 236 Leased Housing Program amended the U.S. Housing Act. This subsidy program, the predecessor to the modern program, was not a pure housing allowance program. Housing authorities selected eligible families from their waiting list, placed them in housing from a master list of available units, and determined the rent that tenants would have to pay. The housing authority would then sign a lease with the private landlord and pay the difference between the tenant's rent and the market rate for the same size unit. In the agreement with the private landlord, housing authorities agreed to perform regular building maintenance and leasing functions for Section 236 tenants, and annually reviewed the tenant's income for program eligibility and rent calculations. The Housing and Urban Development Act of 1970 introduced the federal Experimental Housing Allowance Program (EHAP) and the Community Development Corporation and authorized larger outlays for housing subsidy programs and rent supplements for moderate-income households. In the 1970s, when studies showed that the worst housing problem afflicting low-income people was no longer substandard housing, but the high percentage of income spent on housing, Congress passed the Housing and Community Development Act of 1974, further amending the U.S. Housing Act of 1937 to create the Section 8 Program. In the Section 8 Program, tenants pay about 30 percent of their income for rent, while the rest of the rent is paid with federal