§ 312.1 Purpose, applicability, scope and disclosure obligations.

(a) Purpose. The purpose of this section is to provide standards and practices for “all appropriate inquiries” for the purposes of CERCLA sections 101(35)(B)(i)(I) and 101(35)(B)(ii) and (iii).

(b) Applicability. The requirements of this part are applicable to:

(1) Persons seeking to establish:

(i) The innocent landowner defense pursuant to CERCLA sections 101(35) and 107(b)(3);

(ii) The bona fide prospective purchaser liability protection pursuant to CERCLA sections 101(40) and 107(r);

(iii) The contiguous property owner liability protection pursuant to CERCLA section 107(q); and