IIRC, any priest can lift the latae sententiae excommunication due to collaboration in an abortion. I hope so, because I’ve done it.
IIRC, this privilege is not in the Code of Canon Law, but was promulgated by JPII.
Is it true only priests in the US are given that ability? I thought I read somewhere that in other countries if one is excommunicated, simply going to Confession will not lift the excommunication.