Not later than 60 days after receipt of a plan of action, the Secretary shall notify the owner in writing of any deficiencies that prevent the plan of action from being approved. If deficiencies are found, such notice shall describe alternative ways in which the plan may be revised to meet the criteria for approval.

If the Secretary does not approve a plan of action within the period under subsection (b), the Secretary shall provide incentives and assistance under this subchapter in the amount that the owner would have received if the Secretary had complied with such time limitations. The preceding sentence shall not apply if the plan of action was not approved because of deficiencies. An owner may bring an action in the appropriate Federal district court to enforce this subsection.