(b)
Statement of probable impact of major regulatory action on energy efficiency
Except as provided in subsection (c) of this section, each of the agencies specified in subsection (a) of this section shall, where practicable and consistent with the exercise of their authority under other law, include in any major regulatory action (as defined by rule by each such agency) taken by each such agency, a statement of the probable impact of such major regulatory action on energy efficiency and energy conservation.