From commissions collected in those facilities in which there are no blind vending stand operators licensed by the Department of Rehabilitation, the Department of Rehabilitation, upon a finding by the department that the vendors’ retirement program is actuarially sound and fiscally solvent, shall contribute to an annuity plan for blind vending stand operators licensed by the Department of Rehabilitation pursuant to Section 19630 of this chapter or pursuant to Section 107a of Title 20 of the United States Code.