The Secretary shall promulgate rules by which State agencies shall develop standards for identifying kinds of resources that, as a practical matter, the household is unlikely to be able to sell for any significant return because the household’s interest is relatively slight or because the cost of selling the household’s interest would be relatively great. Resources so identified shall be excluded as inaccessible resources. A resource shall be so identified if its sale or other disposition is unlikely to produce any significant amount of funds for the support of the household. The Secretary shall not require the State agency to require verification of the value of a resource to be excluded under this paragraph unless the State agency determines that the information provided by the household is questionable.