U.S. banking regulator, the Office of the Comptroller of the Currency, is still in the “exploratory” phase with its new fintech charters.

This is according to acting Comptroller Keith Noreika, who made the remarks yesterday during the FinovateFall conference in New York.

The office’s fintech charters were introduced in 2016, and sparked controversy within financial services as to which companies could be covered under such a charter. The regulator is still in the exploratory phase  “because we want to just talk to these companies to get a sense of what your business line is before we entertain applications,” Noreika told Reuters.

The move was followed by several other proposals by the OCC, as the office attempts to adapt banking regulations for less traditional companies and startups; it’s proposal to offer special charters to online lenders led to a lawsuit filed by the New York Department of Financial services.

Read more at Reuters and the New York Times.