The Emir H H Sheikh Tamim bin Hamad Al Thani has issued a decree amending some provisions of a law on "combating terrorism", the state news agency reported.
The decree establishes two national lists for individuals and terrorist entities and sets out the requirements for being included on them.
It also defines terrorists, terrorist crimes, terrorist entities as well as the financing of terrorism, according to the Qatar News Agency.
The decree stated that individuals and entities accused of "terrorist" activities have the right to challenge charges lodged against them before the court.
The amendment is effective immediately upon its publication in the government newsletter, the report said.
The order follows an agreement between Qatar and the United States that seeks to curb "terrorism financing," and which was signed during a visit to Doha by US Secretary of State Rex Tillerson.
Qatar was the first state in the Gulf region to sign an agreement with the US on combating "terrorism".
Tillerson had praised Qatar for signing the deal, and for committing to the effort "to track down and disable terror financing".
