A proposed FDA rule would set nicotine levels on tobacco products at less than half the current average and could save millions of lives, proponents say.

The move could help millions of Americans quit smoking while preventing many more from becoming addicted. The proposed rule, published Wednesday in a 334-page report, would cap nicotine levels in cigarettes and other tobacco products,

The Food and Drug Administration unveiled a proposal on Wednesday to limit the amount of nicotine allowed in cigarettes and some other combustible tobacco products, a final step for the agency before the Trump administration takes over next week.