Illinois Independent Service Coordination: Finding Your ISC Agency for PUNS and DDD Waivers

What an ISC Does

An Independent Service Coordination agency is a contracted third-party organization — not a state office — that serves as the regional gateway to developmental disability services in Illinois. The ISC handles:

• PUNS registration — the intake interview and clinical eligibility determination for the state's waiting list
• Annual PUNS updates — the required yearly review that keeps the individual's wait-time accumulation active
• Category transitions — moving the individual from "Planning for Services" to "Seeking Services" at age 18 when services are needed within the next year
• Crisis funding requests — bypassing the PUNS waitlist when an individual faces abuse, neglect, or caregiver emergency
• Waiver enrollment — once selected from PUNS, the ISC coordinates enrollment into the DDD waiver and helps develop the Person-Centered Personal Plan

The ISC is not optional. There is no way to register on PUNS, apply for DDD waiver funding, or access most state-funded developmental disability services without going through your assigned ISC.

How ISCs Are Assigned

Illinois assigns ISC agencies by geographic area. Your county or zip code determines which agency serves you. The major contracted agencies include:

• Community Alternatives Unlimited (CAU) — serves multiple regions across the state
• Service Inc. of Illinois — covers several counties with PUNS intake and coordination
• Suburban Access — serves suburban Chicago-area communities
• Community Service Options (CSO) — covers designated downstate regions

To find your specific ISC, contact the Illinois DHS Division of Developmental Disabilities or check the DDD's provider directory. Your ISC assignment is based on where the individual lives, not where the family works or where the disability was diagnosed.

The ISC Relationship Matters More Than You'd Expect

The coordinator assigned to your case maintains the administrative record that tracks when your young adult enters the selection queue; the Division of Developmental Disabilities makes the selection. Three things make this relationship high-stakes:

Annual updates are mandatory. If the family fails to complete the annual PUNS update with the ISC, the state may change the individual's status to inactive. Inactive status pauses wait-time accumulation — and in a system where selection happens at 42–43 months, even a few months of paused time pushes the selection date further out.

Category transitions aren't automatic. When the individual turns 18, if services are needed within the next year, the ISC must update their PUNS record from "Planning for Services" to "Seeking Services." The ISC won't do this on its own — you have to contact them and request the change. Until the record is updated, the selection clock doesn't start.

Documentation quality affects the intake decision. The ISC's clinical evaluation and the records they submit help determine whether the individual qualifies for the PUNS system. Bring comprehensive diagnostic documentation — psychological evaluations, IEP records, medical records from treating providers — rather than relying on the ISC to gather everything independently.

What to Do If Your ISC Is Unresponsive

ISC agencies are contracted by the state and accountable to the DHS Division of Developmental Disabilities. If your coordinator isn't returning calls, isn't scheduling the annual update, or isn't processing a category transition:

1. Document every attempted contact — dates, times, method, who you spoke with
2. Request a supervisor at the ISC agency
3. If that doesn't resolve it, file a complaint directly with the DDD through their contact line
4. For urgent situations (the individual is in crisis and needs immediate funding), the DDD can intervene directly

Don't let communication failures with the ISC silently erode your young adult's wait-time position. The consequences are invisible until selection time arrives and the accumulated months don't add up.

The Illinois SSI at 18 & Adult Disability Benefits Guide includes the ISC timeline alongside the SSI redetermination, AABD Medicaid, and ABLE account setup — every step sequenced so that the ISC intake happens at the right point in the broader transition process.

See more Illinois guides →