Sometimes people appear before a committee to provide more information related to a bill what is it called?

When people appear before a committee to provide information related to a bill, it is called "testifying" or "giving testimony." This process allows individuals, experts, or stakeholders to share their insights, opinions, and data that can influence the committee's understanding and decision-making regarding the proposed legislation. Testimonies can come from various sources, including government officials, advocacy groups, and members of the public.