The measure was introduced by Rep. Steve Israel (D-Dix Hills). Downey is the second victim of the Sept. 11 terror attacks Congress has considered naming a post office after.
Downey was chief of rescue operations and a city firefighter for 39 years. He oversaw rescue efforts at the Alfred P. Murrah Federal Building in Oklahoma City in 1995 and at the 1993 bombing attack at the World Trade Center.
"He's a national treasure," Israel said.