Butte County has no ordinance specific to cryptocurrency or blockchain mining. A commercial mining operation is treated as a data center or industrial use, allowed in the LI, GI, or Heavy Industrial zones and subject to the same zoning, CEQA review, and Chapter 41A noise limits.
Unincorporated Butte County does not mention cryptocurrency, bitcoin, or blockchain mining in its zoning code (Chapter 24); 'mining' in county regulations refers to extracting rock and minerals, not computing. Because a crypto operation is a room of servers and cooling equipment, it is regulated exactly like a data center: the Development Services Department classifies it as an industrial use, sites it in the LI, GI, or HI zone with a Conditional Use Permit for larger operations, and applies CEQA where the project is discretionary. Its cooling and generator noise must meet the Section 41A-7 limits at nearby homes. Small-scale home mining on personal equipment falls under ordinary residential and home-occupation rules.
No crypto-specific penalty exists. A commercial mining facility built outside an LI, GI, or HI zone, without a required use permit or CEQA clearance, or exceeding the Chapter 41A noise limits, faces county zoning and code enforcement until it conforms.
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