Penn told the Senate Foreign Relations Committee on Wednesday that the problem requires "immediate attention" and shouldn't be held up by any bureaucratic disagreements.
Penn testified at the hearing along with administration officials, who also touted some of the successes made in the devastated country.
Penn has been involved in relief efforts in Haiti since the country was devastated by an earthquake in January. The disaster left 230,000 people dead and displaced more than 1.2 million.
