(This measure has not been amended since it was introduced. The summary has been expanded because action occurred on the measure.) Fort Ontario Study Act (Sec. 3) This bill directs the Department of the Interior to conduct a special resource study of Fort Ontario in Oswego, New York. Interior shall: (1) evaluate the fort's national significance, (2) determine the suitability and feasibility of designating it as a unit of the National Park System; (3) consider alternatives for preservation, protection, and interpretation of the fort; and (4) identify cost estimates for any federal acquisition, development, interpretation, operation, and maintenance associated with the alternatives. .