Rite of Christian Initiation of Adults (RCIA)
Order of Christian Initiation of Adults (OCIA)

Becoming Catholic/RCIA/Adult Confirmation

Why RCIA is now OCIA, and what that means for converts
https://aleteia.org/2022/12/08/why-rcia-is-now-ocia-and-what-that-means-for-converts/

RCIA