; and (B) optionally, the placement of the severed portion of the structure on the sea floor adjacent to the base of the nonsevered portion of the structure. (6) Reef in place The term reef in place means decommissioning through topple in place or partial removal that— (A) attempts to maximize habitat for benthic and pelagic species throughout the entirety of the water column; and (B) is appropriate to maintain navigational safety. (7) State The term State means a State of the United States, the District of Columbia, Puerto Rico, the United States Virgin Islands, American Samoa, Guam, Johnston Island, Midway Island, and Wake Island. (8) Topple in place The term topple in place means detaching a structure from the seabed and toppling the structure onto its side on the seabed in the same area where the structure was originally attached. (9) Waters covered under this title The term waters covered under this title means the navigable waters of the United States and the waters superjacent to the Outer Continental Shelf as defined in section 2 of the Outer Continental Shelf Lands Act ( 43 U.S.C. 1331 ), to the extent such waters exist in or are adjacent to any State. ; and (2) by amending section 207 to read as follows: 207. Reef in place (a) Reef in place (1) In general Not later than 5 years after the date on which a lessee, right-of-way holder, or owner of an idle structure files a notice of intent under section 5(k)(4) of the Outer Continental Shelf Lands Act ( 43 U.S.C. 1334(k)(4) ) with respect to the idle structure, such lessee, right-of-way holder, or owner may reef in place the idle structure if the Secretary of the Interior determines— (A) the idle structure is sound and secure; and (B) the lessee, right-of-way holder, or owner has, with respect to the idle structure— (i) removed all hydrocarbons and other hazardous liquids; (ii) if required by law or regulation, installed identifying markers to protect and aid navigation; (iii) no outstanding responsibility or liability