Publication 78 Help
For help in using Publication 78, Cumulative List of Organizations, see the following:
Scope of Publication 78; deductibility codes used in individual listings, and extent to which contributors may rely on listing as evidence that organization is an eligible donee (Part I)
General explanation of rules on charitable contribution deductions for federal income tax purposes ( Part II)
Searching tips for on-line Publication 78 (Part III)
Frequently asked questions about the Publication 78 Search Engine
Questions about listings in Publication 78 or supplements should be addressed to the Tax Exempt and Government Entities Customer Account Services. These include questions about omissions, misspellings, alphabetical misplacement, coding errors, deductibility of contributions to a particular organization not listed, and general technical questions. Please review the information available in the documents listed above before contacting the IRS.gov Help Desk or Customer Account Services.