I don't think "in accordance to" is a correct phrase. Accordance means "agreement" or "harmony", so you wouldn't be in "agreement to" something or in "harmony to" something. You could only be "in agreement with" or "in harmony with" because agreeing with something or someone puts you in a category or group WITH that person or thing.
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accordance
n 1: concurrence of opin
Anonymous "In accordance with the rules of the English language, you should use 'with' instead of 'to' in this phrase."To add to the confusion, I would suggest this instead: