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9.2.2.1 Building Area Method
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This method for determining the interior lighting power allowance, described in Section 9.5, is a simplified approach for demonstrating compliance.
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9.2.2.1 Lighting, Building Area Method
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Existing Building Code 2021 of Illinois > 13 Performance Compliance Methods > 1301 General > 1301.6 Evaluation Process > 1301.6.2 Building Area > 1301.6.2.2 Area Formula