The Office of the Comptroller of the Currency has been taking the lead on a federal license for fintech firms, but the central bank will decide if such companies can access the payments system and other benefits.
The state's banking regulator and the Conference of State Bank Supervisors are reviving litigation after the Office of the Comptroller of the Currency said it would accept charter applications.
Several states pledged to compensate for a slowdown in enforcement at the Consumer Financial Protection Bureau under Mick Mulvaney, but their efforts have been complicated by tight budgets and doubts over whether such initiatives are necessary.
The decision, unveiled just hours after the Treasury Department endorsed the charter concept, means some fintech firms could soon be regulated more like banks.