(a) EPA approves as a revision to the Pennsylvania State Implementation Plan the 1990 base year carbon monoxide emission inventory for Philadelphia County, submitted by the Secretary, Pennsylvania Department of Environmental Protection, on September 8, 19
CFR 40-52.2036-2014 history
2014CFR 40-52.2036-2014 Protection of Environment. Part52:Approval and promulgation of implementation plans. Section52.2036:Base year emissions inventory.