Referrals may be submitted at any time, by anyone. One of our Evaluation Coordinators will contact you within a few days to set up an appointment to evaluate your child. From referral date to Individualized Family Service Plan is 45 days. Only children birth to 3 years are eligible for the FIT program. ATI provides FIT services to children within a 5 county area: Catron, Grant, Hidalgo, Luna, and San Juan counties.