President Donald Trump has said he's going to set more limits on the H-1B visa program, which allows tens of thousands of technology workers into the US each year. But yesterday, the Department of Homeland Security moved to expand another type of visa, the H-2B, which allows lower-skilled workers in on a seasonal basis.

The Department of Homeland Security said yesterday it is going to allow an additional 15,000 workers to come in under the H-2B visa category, which is typically used by US businesses in industries like tourism, construction, and seafood processing. The program normally allows for 66,000 visas, split between the two halves of the year. That means the DHS increase, announced yesterday, represents an increase of more than 40 percent for the second half of 2017.

Businesses can begin applying for the additional visas right away, as long as they attest under penalty of perjury that their business will "suffer irreparable harm" if it can't employ additional H-2B workers in 2017. The expansion is a temporary one, and it only applies to the current year.

The H-2B visa program specifically excludes agricultural workers who are covered under the H-2A visa.

A DHS official told The Washington Post that the increase in visas "absolutely does" fit in with Trump's promises to push a policy of "buy American, hire American."

"We're talking about American businesses that are at risk of suffering irreparable harm if they don't get additional H-2B workers," the DHS official told the newspaper. "This does help with American businesses continuing to prosper."

As a presidential candidate, Trump said he would "end forever the use of the H-1B as a cheap labor program, and institute an absolute requirement to hire American workers for every visa and immigration program," with "no exceptions."

Since taking office, Trump hasn't taken action on H-1Bs. His executive order on the matter only authorizes a study on the program . Members of Congress from both parties have introduced bills that would reform the program , but those proposals haven't moved forward, either.

The H-2B visa is used extensively by Trump's own businesses, including his Mar-a-Lago resort in South Florida. During the presidential campaign, Trump explained his use of H-2B visas by saying that "getting help in Palm Beach during the season is almost impossible."

Mar-a-Lago's 64 workers on H-2B visas come primarily from Haiti and Romania. The Palm Beach Post reported on the resort's 2017 visa applications, showing that most workers got about a 1 percent raise, while some had their pay cut. At Mar-a-Lago, cooks are paid $12.74 an hour, wait staff are paid $11.13 an hour, and housekeepers are paid $10.17 an hour.