New silica rules and regulations in the US

After 45 years years of waiting the US silica rules and regulations are finally finalized!

Some regulations take the government months to produce. Some take years. Enactment of a final rule, to be issued later this week, to shield an estimated 2.2 million workers from a dangerous chemical compound—a mineral whose health risks have been common knowledge since the time of the ancient Greeks—took four decades...

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