by the United States government

“ The term “person” means an individual, firm, corporation, association, partnership, consortium, joint venture, commercial entity, United States Government, State, municipality, commission, political subdivision of a State, or any interstate body. ”

“ Cooperation, assistance, and access.— The person provides full cooperation, assistance, and access to persons that are authorized to conduct response actions or natural resource restoration at a vessel or facility (including the cooperation and access necessary for the installation, integrity, operation, and maintenance of any complete or partial response actions or natural resource restoration at the vessel or facility) . ”

“ Standards and practices.— The standards and practices referred to in clauses (ii) and (iv) of paragraph (35) (B) shall be considered to satisfy the requirements of this subparagraph. (iii) Residential use.— In the case of property in residential or other similar use at the time of purchase by a nongovernmental or noncommercial entity, a facility inspection and title search that reveal no basis for further investigation shall be considered to satisfy the requirements of this subparagraph. ”

“ The term includes the costs of permanent relocation of residents and businesses and community facilities where the President determines that, alone or in combination with other measures, such relocation is more cost-effective than and environmentally preferable to the transportation, storage, treatment, destruction, or secure disposition offsite of hazardous substances, or may otherwise be necessary to protect the public health or welfare ”

“ Exclusions.— The term “eligible response site” does not include— (i) a facility for which the President— (I) conducts or has conducted a preliminary assessment or site inspection; and (II) after consultation with the State, determines or has determined that the site obtains a preliminary score sufficient for possible listing on the National Priorities List, or that the site otherwise qualifies for listing on the National Priorities List; unless the President has made a determination that no further Federal action will be taken ”

“ Commonly known or reasonably ascertainable information about the property. (X) The degree of obviousness of the presence or likely presence of contamination at the property, and the ability to detect the contamination by appropriate investigation. (iv) Interim standards and practices.— (I) Property purchased before may 31, 1997.— With respect to property purchased before May 31, 1997, in making a determination with respect to a defendant described in clause (i) , a court shall take into account— (aa) any specialized knowledge or experience on the part of the defendant ”