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Missouri, Arkansas, and Iowa terminated their challenge to an EPA rule requiring them to beef up cybersecurity for drinking water systems Wednesday, two weeks after the agency rescinded the rule.
The US Environmental Protection Agency withdrew the rule on Oct. 11 “due to litigation.”
The Mar. 3 rule mandated all drinking water systems to check their vulnerability to hacking and other cybersecurity threats—which have become increasingly common and threaten water quality.
Missouri, Arkansas, and Iowa sued in April, claiming that the rule would impose costs on small and rural public water systems, and was an overstep of the EPA’s authority …
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