all high-risk urban areas and other recipients of grants administered by the Department to prevent, prepare for, protect against, or respond to natural disasters, acts of terrorism, or other man-made disasters (excluding assistance provided under section 203, title IV, or title V of the Robert T. Stafford Disaster Relief and Emergency Assistance Act (
42 U.S.C. 5133, 5170 et seq., and 5191 et seq.)) that include or substantially affect parts or all of more than 1 State coordinate, as appropriate, across State boundaries, including, where appropriate, through the use of regional working groups and requirements for regional plans.