A donor-advised fund (DAF) is a charitable giving program administered by a public charity that manages donations on behalf of organizations, families or individuals. Donors make a contribution and receive an immediate tax deduction. While the donors surrender ownership of the contribution, they retain the ability to make recommendations on grants to nonprofits. If you have a DAF, you can recommend grants directly to support San Mateo County Parks Foundation. The San Mateo County Parks Foundation receives donations from several DAFs – including Fidelity Charitable, Schwab Charitable, Silicon Valley Community Foundation and Vanguard Charitable.