Checks can also be made out to: Charitable Ventures with Cool OC in the memo. Address: Cool OC c/o Charitable Ventures 1505 E. 17th Street, Suite 101 | Santa Ana, CA 92705 We will send a tax-deductible receipt about two weeks after receiving the donation. Cool Irvine/Cool OC is a fiscally sponsored project by Charitable Ventures, a 501(c)(3) nonprofit. The Federal Tax ID# is 20-8756660.