President Donald Trump has extended a waiver of a century-old shipping law for another 90 days, a White House official said on Friday. The waiver lets some foreign ships carry oil, fuel and other goods between American ports.

The law is called the Jones Act, and it was signed in 1920. It requires cargo moving by water between U.S. ports to travel on ships built in America, owned by American companies and crewed by American workers, Reuters reported.

The White House told The Epoch Times there will be no gap. The current waiver ends at 11:59 p.m. Eastern time on Sunday, and the new one begins at midnight on Monday, Nov. 16.

The waiver is meant to lower the prices of gasoline, diesel and fertilizer, which went up because of the war with Iran, Reuters reported. It does this by giving shippers more choices and easing delays in moving goods.

The White House said the waiver gives states more flexibility to get the products they need while conflicts overseas disrupt supplies.

According to the White House, an extra 90 million barrels of products have moved between U.S. ports since the waiver began in March. Most of it was refined fuel. That includes 27 million barrels of gasoline, 26 million barrels of crude oil and 6 million barrels of renewable fuels.

California received most of the shipments, the White House said. It said 23 million extra barrels reached the West Coast, including 13 million barrels of gasoline. That compares with 8 million barrels in the same stretch of 2025.

Oil and chemical companies said the waiver has helped them move crude oil, fertilizer and other goods between U.S. ports efficiently and at lower cost, Bloomberg News reported.

The new waiver keeps the case-by-case reviews that began in August. Under that approach, the U.S. Maritime Administration must be asked whether American ships are available before the waiver is used for a trip. Products covered include gasoline, jet fuel, crude oil, liquefied natural gas, soy oil and fertilizers.

Reuters reported that it is the longest waiver in the history of the shipping law.