Unincorporated Riverside County has no cryptocurrency-mining ordinance. A crypto or blockchain hosting operation is treated as a data center or industrial use under Ordinance No. 348, subject to the same manufacturing-zone siting, plot plan or conditional use permit, CEQA review, and Ordinance 847 noise limits.
The county zoning code, Ordinance No. 348, does not define or separately regulate cryptocurrency mining. Because a mining operation is functionally a room of servers, the county treats it as a data center or general industrial use. That routes it into the same framework: siting in a Manufacturing (M-SC, M-M, M-H) or Industrial Park (I-P) zone, approval by plot plan or conditional use permit, General Plan consistency and CEQA review for larger sites, and the Ordinance 847 noise caps of 55 dBA day and 45 dBA night at any neighboring residential property line. High-density mining rigs, which run loud cooling around the clock, face the same noise scrutiny as any data center.
A crypto-mining facility operating without the required plot plan or conditional use permit, or exceeding the noise limits, faces the same enforcement as any data center: plot-plan denial, permit holds, code enforcement abatement, and noise infractions starting at $500.
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Side-by-side rule comparisons with other cities in Riverside County.
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