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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Oct 07, 2025
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Title 47
Chapter I
Part 9
Subpart H - Subpart H—Resiliency, Redundancy, and Reliability of 911 Communications
§ 9.19 - Reliability of covered 911 service providers.
§ 9.20 - Backup power obligations.
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