This publication describes innovative and powerful mechanisms for financing sustainability projects on campus including energy efficiency upgrades and renewable energy installations. The guide provides step-by-step guidance for establishing revolving loan funds for campus sustainability, based on the experiences of the authors in setting up such a fund at Macalester College. Appended are: (1) Macalester CERF Charter; (2) Macalester CERF Covenant; (3) Macalester CERF Financing Plan; and (4) Sample Project Ideas. (Contains 3 footnotes.)