General Tax Information
Form W-9 for Vendors (PDF)
Deferred Compensation Election Information & Letter (PDF)
Letter of Federal Exempt Status (PDF)
Certificate of Exemption From Federal Excise Tax (PDF)
D.C. Personal Property Tax Exemption Certificate (PDF)
MD Personal Property Tax Exemption Letter (PDF)
State of California Exemption Letter (PDF)

Sales Tax Exemptions:
D.C. Sales Tax Exemption Certificate (PDF)
FL Sales Tax Exemption Certificate (PDF)
IL Sales Tax Exemption Letter (PDF)
IN Sales Tax Exemption Certificate (PDF)
MD Sales Tax Exemption Certificate (PDF)
MA Sales Tax Exemption Certificate (PDF)
ND Sales Tax Exemption Certificate (PDF)
NY Sales Tax Exemption Certificate (PDF)
OH Sales Tax Exemption Certificate (PDF)
TN Sales Tax Exemption Letter (PDF)
VA Sales Tax Exemption Certificate (PDF)