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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 10
Chapter II
Part 460
Subpart B - Subpart B—Building Thermal Envelope
§ 460.101 - Climate zones.
§ 460.102 - Building thermal envelope requirements.
§ 460.103 - Installation of insulation.
§ 460.104 - Building thermal envelope air leakage.
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