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The Food and Drug Administration ordered changes last summer but gave sunscreen-makers a year — until this June — to get revised bottles on the shelf. Among the changes: Sunscreens had to protect against both sunburn-causing ultraviolet B rays and the ultraviolet A linked to skin cancer — or carry a special warning label. They also couldn’t claim to be waterproof or sweatproof.

Friday, the FDA said it would give sunscreen-makers that aren’t ready another six months to make the changes but encouraged them to get newly labeled bottles on store shelves as soon as possible.

NORTH CAROLINA

Bloomberg: State’s marriage vote sets back civil rights

CHAPEL HILL — New York City Mayor Michael R. Bloomberg has told University of North Carolina graduates that last week’s gay marriage vote shows there is still a lot of work to be done for civil rights in this country.

Mr. Bloomberg spoke Sunday to thousands of graduates at Kenan Stadium.

Mr. Bloomberg told them Americans have slowly understood since this country was founded that if the government can deny freedom to one person, it can deny freedom to everyone. The mayor said every generation has brought more freedom to this country, and he expects the latest generation to continue to the work, especially in light of Tuesday’s vote approving a state constitutional amendment banning gay marriage.

Mr. Bloomberg also said the university’s motto, “Light and Liberty,” should be the defining spirit of this century.

• From wire dispatches and staff reports