The term “assessment” means the national assessment of onshore capacity for carbon dioxide completed under subsection (f).

The term “capacity” means the portion of a sequestration formation that can retain carbon dioxide in accordance with the requirements (including physical, geological, and economic requirements) established under the methodology developed under subsection (b).

The term “engineered hazard” includes the location and completion history of any well that could affect potential sequestration.

The term “risk” includes any risk posed by geomechanical, geochemical, hydrogeological, structural, and engineered hazards.

The term “Secretary” means the Secretary of the Interior, acting through the Director of the United States Geological Survey.

The term “sequestration formation” means a deep saline formation, unmineable coal seam, or oil or gas reservoir that is capable of accommodating a volume of industrial carbon dioxide.