Eager to lessen the chaos of the transfer portal era and court fights with players trying to extend their careers, the NCAA approved a new eligibility model for Division I athletes on Tuesday that will allow five seasons of competition over a five-year period that begins with their full-time enrollment or the academic year following their 19th birthday, whichever occurs first.

The Division I Cabinet unanimously approved the change from the longstanding tenet of college sports that gave athletes five years to complete four seasons of competition with their eligibility clock starting at the time of enrollment, regardless of age.

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The move will all but eliminate waivers or redshirt years for extended eligibility except for religious missions, maternity leave or active-duty military service. No longer will extensions be considered for athletes who are injured.

"While previous NCAA rules have served college sports well for a long time, we heard also loud and clear from NCAA members and student-athletes that eligibility rules should be easier to understand," NCAA President Charlie Baker said.

The NCAA believes the age-based model will make rules easier to administer and help make roster management more predictable for coaches.

"I think this new rule is one of the most sensible things the NCAA has ever done, and it will absolutely eliminate the type of eligibility litigation that's predominated lately," said attorney Tom Mars, who represented Ole Miss quarterback Trinidad Chambliss in his successful quest for an additional year of eligibility in a case that went to the Mississippi Supreme Court.

Mars added, "Let me put it in bottom-line language: There's no way somebody could file an eligibility case based on a medical waiver now with the new rule. Can't be done. You can file it, I guess, but it will be immediately dismissed."

The rules, which will become official when the Cabinet adjourns its meetings on Wednesday, are set to take effect this fall. Division I includes more than 350 schools, some 200,000 athletes and, with football and basketball leading the way, is by far the most lucrative of the three in the NCAA.

The five-in-five language also is included in Senate legislation intended to address numerous concerns across college sports and comes after a wave of lawsuits from athletes seeking to extend their college careers and ability to earn money through revenue sharing and name, image and likeness deals. Still to be seen is whether the new rules will withstand legal scrutiny alongside the existing challenges.

Heisman Trophy runner-up and Vanderbilt quarterback Diego Pavia remains the lead plaintiff in a lawsuit challenging an NCAA rule counting seasons spent at junior colleges against players' Division I eligibility time. That case is slated for trial in February.

"I wouldn't say that the rule change itself will slow lawsuits down," said Sam Ehrlich, a Boise State assistant professor of legal studies in business and management who tracks litigation against the NCAA.

Ehrlich said athletes very well could continue to petition courts for extended eligibility based on antitrust arguments, but appellate courts recently have delivered wins for the NCAA by overturning preliminary injunctions in several cases.

The new eligibility model will affect all athletes who enroll in 2027-28. Currently enrolled athletes with eligibility after the 2025-26 academic year, and those who are incoming freshmen this fall, can apply the age-based model or continue under previous eligibility rules. It would be advantageous this year for some incoming freshman hockey players to use the traditional model if they are coming from the junior ranks and are 20, as is common in the sport.

For schools with current athletes who may be eligible for hardship waivers or extensions of eligibility under current rules, the D-I Cabinet indicated the deadline to submit requests to the NCAA is July 31. After that date, waivers would no longer be available.

Ryan Downton, the attorney for Pavia in his case against the NCAA that won him a sixth year of eligibility last season, said he was happy to see athletes allowed five seasons of competition. But he said it was likely that high school class of 2022 athletes who are now cut off from further competition will go to court.

"These athletes are still within their five-year eligibility window and spent their entire college careers competing against fifth- and sixth-year players due to the COVID waiver," Downton wrote in an email to The Associated Press. "We hope the courts will correct the unfairness of the NCAA's ruling and allow class of 2022 players to play their fifth season in 2026-27."

Ramogi Huma, executive director of the National College Players Association, wrote in a text to the AP that he had not seen the final language that was adopted but that the rule's "general structure that has been discussed is within reason."

"But it's important for athletes to have an opportunity to seek hardship waivers," he wrote.