Not later than 1 year after , the Administrator shall establish a system to harmonize, to the maximum extent practicable and consistent with data integrity—
((1)) the data collection efforts of the Administrator, including any data collection required under this subchapter, with the data collection efforts of—
((A)) the Environmental Protection Agency, as the Administrator determines to be appropriate;
((B)) other relevant Federal agencies, as the Administrator determines to be appropriate; and
((C)) State or regional energy credit registries, as the Administrator determines to be appropriate;
((2)) the data collected under this subchapter, including the operating data on electricity generation collected under , with data collected by the entities described in subparagraphs (A) through (C) of paragraph (1), including any measurements of greenhouse gas and other pollutant emissions collected by the Environmental Protection Agency, as the Administrator determines to be appropriate; and
((3)) the efforts of the Administrator to identify and report relevant impacts, opportunities, and patterns with respect to energy use, including the identification of community-level economic and environmental impacts required under , with the efforts of the Environmental Protection Agency and other relevant Federal agencies, as determined by the Administrator, to identify similar impacts, opportunities, and patterns.