The State agency shall establish procedures (in accordance with standards specified by the Secretary) under which the agency shall waive the application of this subsection (other than paragraph (1)(C)) if such application would work an undue hardship as determined on the basis of criteria established by the Secretary.

The standards specified by the Secretary under subparagraph (A) shall require that the procedures established by the State agency under subparagraph (A) exempt income, resources, and property that are exempt from the application of this subsection as of April 1, 2003 , under manual instructions issued to carry out this subsection (as in effect on such date) because of the Federal responsibility for Indian Tribes and Alaska Native Villages. Nothing in this subparagraph shall be construed as preventing the Secretary from providing additional estate recovery exemptions under this subchapter for Indians.