Transition Plan means the plan developed under section 512(d). (9) Labor organization The term labor organization has the meaning given such term in section 2 of the National Labor Relations Act ( 29 U.S.C. 152 ). (10) Office The term Office means the Energy Workforce Transition Office established by section 512. (11) Secretary The term Secretary means the Secretary of Energy. (12) Wage differential benefit The term wage differential benefit means the difference between the wages and other benefits provided by— (A) a worker’s wages and benefits earned in a coal-related facility, coal-related industrial-facility, or other energy-related entity on the day before the worker is terminated, laid off, or given a reduction in work-hours