; and (B) does not exceed 50 percent of the amount required to remove the idle structure, as determined by the appropriate entity and approved by the State, unless the appropriate entity consents to a greater amount. (2) Liability Upon acceptance by a State of an idle structure into a State program described in paragraph (1)— (A) the appropriate entity shall have no responsibility or liability with respect to the idle structure; and (B) the State shall be— (i) responsible for the continued maintenance of the idle structure, including maintaining any identifying markers installed to protect and aid navigation; and (ii) exclusively responsible and liable for the idle structure. (3) Use of State funds Funds received by a State under paragraph (1) may be used by the State for costs associated with— (A) respect to the idle structure— (i) liability coverage; (ii) maintenance and upkeep; and (iii) the installation and operation of passive technologies on the idle structure to monitor the health and size of the corals and fish stocks that use the idle structure as a habitat; (B) coastal restoration projects; and (C) coastal enhancement projects. (c) Assessment (1) In general The Administrator of the National Oceanic and Atmospheric Administration shall conduct an assessment of each idle structure, which shall, with respect to each idle structure— (A) include an assessment of— (i) the localized corals and fish species that use the idle structure as a habitat; and (ii) the economic impacts of reefing in place, including a comparison of the benefits afforded by reef-associated species if the idle structure is reefed in place with the costs of lost fishing opportunity if the idle structure is removed