I don’t think there are a lot of schools with an Oct 15 deadline that don’t also have a later deadline for score, as traditionally, most used to accept scores from October test dates. What is the other school?
Examples of score deadlines for schools with Oct 15 EA application deadlines:
Clemson, Nov 1 (requires official report)
FSU, materials Oct 22, scores Dec 1 (self-report)
UT Austin, Oct 22 (that’s tight for an official report)
UGA, Oct 29 (official report)
UNC, Nov 7 (self-report)
Ga Tech in-state, Oct 31 (self-report)
U South Carolina, Nov 1 (official report)