The PGA of America said its board made the decision as a way to ensure the year's second major can have the strongest field possible while future US Ryder Cup teams will continue to have access to the best American players.
LIV Golf's Brooks Koepka was part of last year's US Ryder Cup team due to a grace period that allowed him to remain a PGA of America member through 2024, but it was not clear how the body would further handle the divide in professional golf.
That same grace period also applied to LIV Golf players competing in the PGA Championship.
"Going forward, all LIV Golf players are eligible for the PGA Championship and any American player who qualifies for the Ryder Cup on points or is added to the US team as a captain's pick is eligible to compete," the PGA of America said.
"This is consistent with LIV Golf players competing in the PGA Championship the past two years. Brooks Koepka was a member of the US Ryder Cup team last year."
The decision clears the way for LIV golfers like reigning US Open champion Bryson DeChambeau, who is third on the US points list for the 2025 Ryder Cup despite being ineligible for PGA Tour events where the majority of points could be earned.
LIV Golf, which is funded by Saudi Arabia's Public Investment Fund, did not immediately respond when asked to comment of the PGA of America's decision.
The European Ryder Cup team has a pathway in place for those with LIV Golf to be eligible for the biennial matchplay event, with the main criteria being they must play at least four events on the Europe-based DP World Tour per year.
In addition, those players must also pay fines for competing in tournaments on the Saudi-funded circuit that conflicted with DP World Tour events without requesting permission from the European-based circuit.
Spaniard Jon Rahm, who was a key player for Europe in the 2023 Ryder Cup before joining LIV Golf two months later, intends to play the required European events and has appealed the fines that the DP World Tour assessed him.
The 2025 Ryder Cup between the United States and Europe will be held next September at Bethpage Black in New York.