Costa Mesa has no cryptocurrency-mining ordinance. A commercial mining facility is handled as an unlisted use under Section 13-30(d) in the MG or MP industrial zones, and its cooling noise must meet the Section 13-280 residential limits.
Costa Mesa's Municipal Code contains no crypto, bitcoin, blockchain, or mining use category, and no energy cap aimed at mining. A building of mining rigs draws power and produces heat and noise like a data center, so the development services director reviews it under Section 13-30(d) against Table 13-30 and sites it in the MG or MP industrial zone. Without a substantially similar listed use, it needs a conditional use permit and Planning Commission approval. Noise reaching a home must stay within Section 13-280: 55 dB(A) daytime and 50 dB(A) between 11 p.m. and 7 a.m. Home mining is ordinary residential use under the same noise limits.
Costa Mesa sets no crypto-specific penalty. Commercial mining outside an industrial zone or without a required conditional use permit is a zoning violation, and excess noise is enforced under Section 13-280.
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