With regard to any data or information obtained by a State, Indian tribe or individual, whether under a delegation of authority, cooperative agreement or contract, the following applies:

(a) Proprietary data shall be made available to a State or Indian tribe pursuant to a cooperative agreement under the provisions of 30 U.S.C. 1732 if such State or Indian tribe:

(1) Consents in writing to restrict the dissemination of such information to such persons directly involved in an investigation under 30 U.S.C. 1732 who need the information to conduct the investigation;

(2) Agrees in writing to accept liability for wrongful disclosure;

(3) In the case of a State, the State demonstrates that such information is essential to the conduct of an investigation or to litigation under 30 U.S.C. 1734; and

(4) In the case of an Indian tribe, the tribe demonstrates that such information is essential to the conduct of an audit or investigation and waives sovereign immunity by express consent for wrongful disclosure.

(b)(1) Any person or State that obtains proprietary data pursuant to a delegation of authority, cooperative agreement or contract under this part is subject to the same provisions of law with respect to the disclosure of such information as would apply to any officer or employee of the United States.

(2) Disclosure of proprietary data obtained pursuant to a delegation of authority, cooperative agreement, or contract under this part may not be compelled under State law.