Bloomfield operates under a Special Charter granted under an Act of the New Jersey Legislature.

Westfield is governed under a Special Charter granted by an Act of the New Jersey Legislature.

The township was re-incorporated under the same name by an Act of the New Jersey Legislature on February 21, 1798.

Galloway was incorporated as one of the initial group of 104 townships by an Act of the New Jersey Legislature on February 21, 1798.

New Brunswick was incorporated as a city by an Act of the New Jersey Legislature on September 1, 1784.

Hanover Township was established by an Act of the New Jersey Legislature on February 21, 1798.

South River was incorporated as an independent borough by an Act of the New Jersey Legislature on February 28, 1898, replacing Washington town.

It was formally incorporated by an Act of the New Jersey Legislature on February 21, 1798.

The office was established on January 1, 1918 pursuant to a 1915 Act of the New York State Legislature.

On February 22, 1840, Hudson County was formed by an Act of the New Jersey Legislature.