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A comment on US Construction worker productivity has dropped 40% in the last 50 years. Parent comment
In 1996, they banned plumbing that is not "lead free" from being sold.
In 2011, the "lead free" definition was strengthened to a weighted average of 0.25%.
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In 1996, they banned plumbing that is not "lead free" from being sold.
In 2011, the "lead free" definition was strengthened to a weighted average of 0.25%.