It can add a common measure
Notre Dame can read an SAT or ACT beside students from very different high schools. The score may clarify academic preparation when the local transcript is unfamiliar, but its meaning still depends on course access and performance.
It cannot replace curriculum
Notre Dame’s holistic review also weighs course rigor, service, character and fit with its mission, so a retake should not consume the work that demonstrates those qualities. Admissions readers can see whether the student pursued the strongest appropriate sequence; a composite does not manufacture missing preparation.
It can reveal a section imbalance
Notre Dame superscores and treats ACT Science as optional under the enhanced ACT. A section-level plan is therefore more useful than repeatedly chasing a round total without diagnosing the limiting skill.
It cannot predict admission
Recent Notre Dame score-submitters cluster around 1400–1550 SAT and 33–35 ACT. The cohort contains admitted students, not a mechanical rule. Students below, inside and above a range can receive different decisions because the application is broader.
It can guide timing
Applicants may self-report; enrolling students later verify submitted results. The useful final sitting must leave enough time for the route Notre Dame accepts and for the applicant to confirm that the checklist is complete.
It cannot freeze the policy
For Notre Dame, published through the 2026–27 school year describes the verified scope. Testing policies, optional sections and reporting instructions can change; the application term must remain attached to every operational decision.