Indirect cost policy ACI has a policy that indirect costs cannot exceed 15% of direct costs (excluding travel and equipment). View policy confirmation letter How to reach us Mailing addressP.O. Box 1239, Tracy City, TN 37387 Email[email protected] Stay up to dateGet email updates about our conservation work in the Little Sequatchie Cove. We’ll share news on our research, volunteer opportunities, permits, and more. Sign up