The following regulation has been legislated in the State of California, USA.
http://www.dtsc.ca.gov/hazardouswaste/perchlorate/

1. Subject of regulation: All products containing perchlorate, including perchlorate acid and perchlorate compounds, and products that include such products. All Maxell coin-type lithium manganese dioxide batteries and heat resistant lithium manganese dioxide batteries with or without terminals or wires are affected by this regulation.

2. Content of regulation: All casing, packaging or owners/operating manuals of products containing perchlorate should be clearly labeled or marked with the below statement.

“Perchlorate Material— special handling may apply.
See www.dtsc.ca.gov/hazardouswaste/perchlorate”

If your products contain Maxell coin-type lithium manganese dioxide batteries and/or heat resistant lithium manganese dioxide batteries and are to be shipped to the State of California, labeling or marking product casing or packaging with the above caution notice is strongly recommended.

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