Minnesota has become the first state to ban the use of bisphenol A in children's baby bottles and sippy cups, and Chicago is the first city to follow suit.
They join Suffolk County, N.Y., which earlier this year enacted a BPA ban that goes into effect in early July.
Minnesota's law was signed May 7. Starting Jan. 1, 2010, manufacturers will be banned in the state from selling infant formula and food containers with BPA that are intended for children age 3 and younger. A ban on the retail sale of those products will be enacted Jan. 1, 2011.
Chicago City Council approved May 13 a ban on bottles or cups that contain BPA and are designed to be filled with foods or liquids for children age 3 and younger. Stores in the city will be required to post signs telling consumers that the bottles or cups they sell for small children are BPA-free. The law takes effect Jan. 31, 2010.
The Chicago and Minnesota votes could open the door for more BPA bans in other cities and states. But if that occurs, many of those bans will be largely symbolic, as the top six baby bottle manufacturers in the U.S. in March agreed not to use BPA in the production of polycarbonate baby bottles.
The Connecticut Senate is expected to vote in the next two weeks on whether to adopt a similar ban that the state House overwhelmingly passed.
Connecticut's proposed law would ban the use of BPA starting Jan. 1, 2010, in infant formula cans and containers intended to hold food or liquids for children age 3 and younger. The ban would be extended to all reusable food containers Oct 1, 2010.
The Connecticut measure also would impose a requirement that companies making products with BPA add a warning label.
Michigan, New York and California, as well as Schenectady County, N.Y., are weighing similar proposals. The Schenectady bill has a hearing May 14, and the New York bill was passed by the state Assembly and is awaiting a vote in the Senate.
Three U.S. senators in March introduced a bill that would ban BPA in all food and beverage containers nationwide, though the Food and Drug Administration has said BPA is safe.