President Donald Trump's administration has announced its intention to pause or reverse regulations on mine safety, saying it wants to loosen rules that constrain companies. But as a scholar of both engineering and public policy, with a focus on the risk of exposures to air pollutants and other safety issues, I have seen how safety regulations are designed to benefit not only workers but also companies and the public as a whole. Federal laws and other regulations require that rules written by federal agencies use scientific evidence about how to minimize risk. And under an executive order signed by President Bill Clinton in 1993 that is still in effect, regulations must be evaluated to make sure they produce more economic benefit for the nation than they cost. This is not a simple or quick process. Let's look at one rule as an example of how this plays out, and how the democratic process of scientific study, public debate and comment helps regulators arrive at a rule that balances...
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