The question is whether Tuesday's action settles a larger court fight. Earlier this month, U.S. District Judge Edward Korman of New York blasted the Obama administration for imposing the age-17 limit, saying it had let election-year politics trump science and was making it hard for women of any age to obtain the emergency contraception in time. He ordered an end to all age restrictions by Monday, for Plan B and its generic versions.
The FDA said Tuesday's decision was independent of the court case and wasn't intended to address it. Technically, the FDA approved Teva's application to sell Plan B in this manner.
The women's group that sued over the age limits said Tuesday's action is not enough, and it will continue the court fight if necessary.
Lowering the age limit "may reduce delays for some young women but it does nothing to address the significant barriers that far too many women of all ages will still find if they arrive at the drugstore without identification," said Nancy Northup, president of the Center for Reproductive Rights.
The FDA said the Plan B One-Step will be packaged with a product code that prompts the cashier to verify a customer's age. Anyone who can't provide such proof as a driver's license, birth certificate or passport wouldn't be allowed to complete the purchase. In most states, driver's licenses, the most common form of identification, are issued at age 16.
"These are daunting and sometimes insurmountable hoops women are forced to jump through in time-sensitive circumstances, and we will continue our battle in court to remove these arbitrary restrictions on emergency contraception for all women," Northup said.