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(916) 351-2309 or (888) 889-0450
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Local number: (916) 538-5722
Toll-free number: (833) 888-9378
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Please review our Tips for Asking Questions of the ISO prior to submitting the form to find out how to get a timely and useful response. For questions related to retrieving data from OASIS, visit our OASIS Frequently Asked Questions.