National Nuclear Security Administration Accountability Act

National Nuclear Security Administration Accountability Act - Amends the National Nuclear Security Administration Act (NNSA) to subject to the authority, direction, and control of the Secretary of Energy each officer or employee of the NNSA, or of a contractor of the NNSA, who carries out activities related to safeguards and security (including cyber security), emergency management, integrated safety management, or environment, safety, and health operations.

Amends the Department of Energy Organization Act with respect to delegation only to the Deputy Secretary of Energy, without redelegation, of the Secretary's authority, direction, and control of the Under Secretary for Nuclear Security. Excepts NNSA activities enumerated in this Act from the exclusive scope of such delegation. (Thus allows the Secretary to delegate oversight of such activities elsewhere within the Department of Energy.)