EHT Traceries, Inc. is a women-owned research and consulting firm specializing in history and historic preservation. Since 1977, the award-winning firm has provided its clients with a wide range of professional services related to the preservation of historic and cultural resources. EHT Traceries works throughout the United States, with a special focus on projects in the District of Columbia, Maryland, and Virginia. Emily Hotaling Eig, the company president, is considered an expert on the interpretation of the Secretary of the Interior’s Standards for the Treatment of Historic Properties and Rehabilitation in relation to the adaptive use of historic structures.