Section 15008.

Cal. Public Resources Code - PRC § 15008.
in effect
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“Mercuric oxide button cell battery” means a battery which contains mercuric oxide electrodes, resembles buttons in size and shape, and is used in consumer products such as hearing aids.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026

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