40 C.F.R. § 51.45
Where should my state report the data?
Cite as 40 C.F.R. § 51.45 (2026)
(a) Your state submits or reports data by providing it directly to EPA. (b) The latest information on data reporting procedures is available at the following Internet address: http://www.epa.gov/ttn/chief. You may also call our Info CHIEF help desk at (919) 541-1000 or e-mail to info.chief@epa.gov.