IC 037. US 100 103 106. G & S: Construction and installation of equipment in the field of efficient energy use
IC 039. US 100 105. G & S: Public utility services in the nature of electrical power distribution to residential, industrial and commercial customers; distribution and utility services in the nature of transmission of electric energy and energy capacity; consultation services in the field of energy distribution
IC 042. US 100 101. G & S: Conducting energy audits; design of equipment and apparatus in the field of efficient energy use
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