OATH adjudicates for all city agencies unless otherwise provided for by executive order, rule, law or pursuant to collective bargaining agreements.

[1] OATH is composed of the:[2][3][4] The Environmental Control Board (ECB) is composed of thirteen members: the chairperson is the OATH Chief Administrative Law Judge (ALJ), six are commissioners of city agencies, six are citizens who are experts in the fields of water pollution control, business, real estate and noise but includes two general citizen representatives.

[12] OATH adjudicates for all city agencies unless otherwise provided for by executive order, rule, law or pursuant to collective bargaining agreements.

OATH was created by Mayor Ed Koch with Executive Order 32 on July 25, 1979, and by an amendment to the New York City Charter at the general election on November 8, 1988.

[16] Fidel Del Valle was appointed as commissioner and chief judge of OATH by mayor de Blasio in 2014.