Detailed information on obtaining an EIN can be located on the IRS website at:
If you only need proof of being a tax-exempt agency, the IRS will issue a “Governmental Information Letter” free of charge as a special service to government entities. This letter describes government entity exemption from Federal income tax and cites applicable Internal Revenue Code sections pertaining to deductible contributions and income exclusion. Most organizations and individuals will accept the governmental information letter as the substantiation they need.
Government entities can request a governmental information letter by calling 1-877-829-5500.