South Coast AQMD now offers online fee payment for invoices and permit application processing fees using credit card, debit card or E-Check.

Invoice Fee Payment Portal
Use this link if you have an invoice from the South Coast AQMD (i.e. annual renewals, flat emissions fees, Hot Spots, etc.)

Permit Application Processing Fee Portal
Use this option for permit application processing fees ONLY. Using this link to pay any existing invoice may cause your payment not to post properly to your account.