The term “natural feature” means a feature that is created through the action of physical, geological, biological, and chemical processes over time.
The term “nature-based feature” means a feature that is created by human design, engineering, and construction to provide risk reduction by acting in concert with natural processes.
Not later than February 1, 2020, and 5 and 10 years thereafter, the Secretary shall submit to the Committee on Environment and Public Works of the Senate and the Committee on Transportation and Infrastructure of the House of Representatives a report on the implementation of subsection (b).