Our Lady-Guadalupe CCD Office in Chula Vista administers the Confraternity of Christian Doctrine religious-education program from 337 Tremont Street, preparing parish youth for sacraments including First Communion and Confirmation within the Diocese of San Diego. The CCD curriculum runs parallel to the secular educational programming at Chula Vista Adult School, offering faith-formation classes for adults seeking RCIA initiation alongside the children's tracks. Catechists deliver instruction in both English and Spanish across age-graded classrooms, covering scripture, liturgical practice, and Catholic social teaching rooted in the parish's 1944 founding mission. The office coordinates sacramental preparation schedules with families from surrounding 91911 neighborhoods, many of whose children also attend Castle Park Elementary School in the Otay district. The Tremont Street education wing contains six dedicated classrooms, a catechist resource library, and a bilingual registration system managing enrollment for over 300 students across the parish's annual formation cycle.