A federal judge has denied a government effort to block over-the-counter sales of the morning-after pill to women and girls of all ages.
U.S. District Judge Edward Korman issued the ruling Friday morning.
He had earlier decided to allow anyone to buy the Plan B pill without a prescription, regardless of age.
However, the government tried to delay the ruling from taking effect.
The Food and Drug Administration recently proposed allowing emergency contraception to be sold to girls 15 and older.
In a hearing this week, the judge raised concerns about the age limit, saying some girls of that age would be unfairly blocked from buying the drug because they don't have ID cards.
The government does have the option to appeal.