WASHINGTON — The Supreme Court on Tuesday allowed more than a dozen Texas abortion clinics to reopen, blocking a state law that had imposed strict requirements on abortion providers. Had the law been allowed to stand, it would have caused all but eight of the state’s abortion clinics to close and would have required many women to travel more than 150 miles to the nearest abortion provider.

The Supreme Court’s order — five sentences long and with no explanation of the justices’ reasoning — represents an interim step in a legal fight that is far from over. But abortion rights advocates welcomed what they said was the enormous practical impact of the move. Had the clinics been forced to remain closed while appeals went forward, they said, they might never have reopened.

State officials said the law’s requirements were needed to protect women’s health. Abortion providers said the regulations were expensive, unnecessary and a ruse meant to put many of them out of business.

The justices addressed two parts of the Texas law that the United States Court of Appeals for the Fifth Circuit had provisionally let stand while it considered an appeal.