Fees may be mailed or hand delivered. DSA also accepts payments by credit card or electronic check online through a third-party software run by Fiserv at DSA Filing, Invoice & Re-Exam Fees (www3.thepayplace.com/ca/dgsdsa/firfees). Proof of online payment must be submitted as directed in procedure PR 20-02: Online Payments for Plan Review Filing Fees, Plan/Field Review Fee Invoices & Project Certification Re-Examination Fees.