The “historic” rule aims to eliminate a major source of lead poisoning and comes a decade after a drinking-water crisis in Flint, Mich.

President Joe Biden took a major step toward eliminating the national scourge of lead pipes, unveiling a new rule mandating the removal of all lead pipes within the next decade, in addition to $2.6 billion in new funding toward the environmental and public health goal.

The Biden administration finalized a landmark rule on Tuesday that would require water utilities to replace virtually every lead pipe in the country within 10 years, tackling a major threat that is particularly dangerous to infants and children.