EPA has created a website that features a national web-based inventory for all non-stormwater NPDES general permits issued by states and the Agency. The inventory includes 508 non-stormwater general permits and is designed with a search tool to provide easily accessible information on master general permits, such as: permit category, permit number, state, permit title, EPA Region, issuance and expiration dates, estimated number of facilities covered by each master general permit, and permitting authority. Where a general permit is available on a state website, the web inventory provides a link so that the specific terms of the general permit can be easily viewed. While the web inventory currently only includes non-stormwater general permits, stormwater general permits will be added in the coming months.