; and (bb) seek to resolve issues or disputes at the earliest possible time at the project level through agency employees who have day-to-day involvement in the project. (III) Secretary responsibilities (aa) In general The Secretary shall make information available to each cooperating and participating agency and project sponsor as early as practicable in the environmental review regarding the environmental, historic, and socioeconomic resources located within the project area and the general locations of the alternatives under consideration. (bb) Sources of information The information described in item (aa) may be based on existing data sources, including geographic information systems mapping. (IV) Cooperating and participating agency responsibilities Each cooperating and participating agency shall— (aa) identify, as early as practicable, any issues of concern regarding any potential environmental impacts of the project, including any issues that could substantially delay or prevent an agency from completing any environmental review or authorization required for the project