Certificate of Incorporation approved by the NYS Department of State as a not-for-profit, non-member charity,   February 6, 2012

Received IRS Letter of Determination approving federal income tax exemption, October 18, 2012.

NYS Sales Tax Exempt Organization Certificate, July 3, 2013

The TLPF solicits financial contributions from lake residents, environmental agencies, and municipalities to support the study of DeRuyter Lake environmental conditions and their mitigation and control, both directly and through education of lake users and shareholders.