The Rite of Christian Initiation of Adults includes a Rite of Welcoming the Candidates as an optional rite that welcomes baptized but previously uncatechized adults (411). However, there is no rite for welcoming baptized catechized adults. As a result, the catechized candidates are often folded into the welcoming rite for the uncatechized. See this post, which discusses an alternative way of welcoming catechized candidates.
Posted in: Baptized candidates