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42 U.S. Code § 15872 - Assessment of geothermal energy potential

Not later than 3 years after August 8, 2005, and thereafter as the availability of data and developments in technology warrants, the Secretary of the Interior, acting through the Director of the United States Geological Survey and in cooperation with the States, shall—
update the Assessment of Geothermal Resources made during 1978; and
submit to Congress the updated assessment.