Which e-commerce innovation was first introduced by the U.S. federal government in 1999 that revolutionized how citizens could interact with government services online?

The digital transformation of government services has been a significant shift in how citizens interact with public institutions. E-commerce platforms designed specifically for government use have revolutionized everything from tax payments to permit applications. This trivia question explores a key development in the government e-commerce landscape that changed how citizens access services online.

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FirstGov.gov (now USA.gov) - the first comprehensive government portal
The Internal Revenue Service's first online tax filing system
GovMall - the first inter-agency procurement marketplace
Digital Authentication Framework for secure government transactions