Notre Dame has decided to ban “abortion-inducing drugs” from its third-party-provided insurance plans. The move was announced in a letter from the president, Father John Jenkins, to the university community on Wednesday.

It was not immediately clear which drugs the ban entails, such as the morning-after pill, IUDs, or other long-acting contraceptives. That list will be available in March, a spokesperson confirmed. The school will still allow third-party coverage of contraceptives, but will discontinue coverage of any drugs that would “kill a fertilized egg,” according to the spokesperson. These drugs “are far more gravely objectionable in Catholic teaching,” Jenkins wrote in the letter.

This decision is Notre Dame’s latest attempt to balance its Catholic character with the demands of pluralism within its community.