Michigan Gov. Rick Snyder has signed legislation making it harder for methamphetamine producers to buy key ingredients.
The measures signed Friday limit the amount of over-the-counter cold and allergy medicines containing ephedrine or pseudoephedrine that a person can buy on a given day or in a 30-day period.
Buyers of those products now have to give their name and produce identification to purchase the medications. But there hasn't been a limit on how much they could buy.
Other bills signed by Snyder require electronic tracking when products containing the two ingredients are sold and make it illegal to use a fake ID to purchase them.
The governor also signed a bill outlawing the sale of dangerous designer drugs sold as "bath salts" that are unrelated to products for baths.