But aid officials expressed concern.
The sanctions that come with the formal designation are meant to sever violent extremist groups from their sources of financing.
Aid groups during the height of Yemen's war issued repeated warnings that millions of Yemenis were on the brink of famine.
Aid groups said that step could have the effect of criminalizing ordinary trade and assistance to Yemenis.
At home, the designation helps the Houthis' message to Yemenis that the U.S. is the cause of their suffering, Al-Omeisy said.
Persons:
Scott Paul, Jared Rowell, Biden, “, Hisham Al, Omeisy, ’ ”
Organizations:
Oxfam America, U.S, Nations, International Rescue
Locations:
Iran, Saudi, Britain, Yemen, Israel, U.S, Gaza, Saudi Arabia, Washington