Requires flying US and State flags at half-staff when directed by President of the United States.

This bill requires New Jersey to fly both the U.S. and New Jersey state flags at half-staff on all public buildings whenever the President directs the U.S. flag to be flown at half-staff. It mandates the Governor to issue this directive immediately upon such a presidential order. The law applies specifically to state government buildings, including courthouses, state offices, and public schools, but does not affect private property. It creates a clear, automatic process to align state flag protocol with the President's directives on national mourning or tribute. The bill takes effect immediately upon enactment.