Mayor de Blasio is signing a law that paves the way for New York City to create municipal identification cards.
The cards, dubbed NYC ID, are expected to be available in January.
They will be available to anyone who can prove their identity and residence in the nation's largest city.
In particular, they are expected to help the estimated 500,000 undocumented immigrants who live in New York who would then able to provide an ID required to receive certain government services.
De Blasio said at Thursday's bill signing ceremony in Brooklyn that the elderly, the homeless and members of transgendered community were also poised to benefit.
The cards were a de Blasio campaign promise. The City Council passed the bill last month.