Give by Mail

Thank you for supporting the Biodiversity Heritage Library by making your gift by mail. Your gift helps keep BHL free, open, and connected to the research, conservation, and discovery that depend on it.

How to make your gift

Donations to BHL are processed through the Council on Library and Information Resources (CLIR), which serves as BHL’s fiscal sponsor. This means gifts should be made to CLIR for the benefit of the Biodiversity Heritage Library.

Please make your check or money order payable to:
Council on Library and Information Resources (CLIR)
Please include:
“Biodiversity Heritage Library” on the memo line or payment note so your gift is directed to BHL.
Mail your gift to:
Council on Library and Information Resources
PO Box 98400
Washington, DC 20090-8300
United States

Tax information

CLIR is tax-exempt under section 501(c)(3) of the Internal Revenue Code.

Federal Tax ID / EIN: 52-1576808

Thank you for helping keep biodiversity knowledge free and open.