Texas LIDDA Services for Intellectual and Developmental Disabilities

If your child has an intellectual or developmental disability in Texas, the LIDDA is the single most important agency you've probably never heard of. It controls access to the Medicaid waiver programs that will eventually fund your child's adult living supports — and the clock to get on their list started years ago.

What LIDDAs Actually Do

LIDDA stands for Local Intellectual and Developmental Disability Authority. Texas has 39 LIDDAs that cover all 254 counties, and they serve as the gatekeepers for the state's long-term community-based services for individuals with IDD.

Their core functions include:

• Screening and local eligibility determination for Medicaid waiver programs
• Managing enrollment on the Community Services Interest List (CSIL) — the statewide database that tracks everyone waiting for HCS and TxHmL waiver services
• Intake data collection using Forms 8648 (preferences), 8577 (clinical questionnaire), and 8591 (CSIL data entry)
• Biennial contact verification to maintain active status on interest lists
• Transition support coordination between schools, families, and HHSC

LIDDAs also provide some direct services — crisis intervention, respite coordination, and service coordination for individuals already receiving waiver supports. But for transition-age families, the critical function is getting on the interest list.

The Interest List Process Step by Step

Step 1: Contact your local LIDDA. Use the HHSC LIDDA directory at resources.hhs.texas.gov/directories/lidda to find your county's assigned authority. Call to request a meeting to discuss long-term supports.

Step 2: Complete Form 8648 (Identification of Preferences). This documents which waiver programs you're interested in — typically HCS and TxHmL for IDD, but potentially CLASS and MDCP depending on your child's conditions. The Date of Discussion recorded on this form anchors your position on the waitlist.

Step 3: LIDDA staff collect clinical information. Form 8577 is a 20-section electronic questionnaire covering disability onset age, chronic conditions, mental health diagnoses, current caregiver status, and specific activities of daily living where the student needs assistance. Form 8591 captures the CSIL data entry information.

Step 4: The 60-day entry rule. HHSC requires the LIDDA to enter your data into the CSIL database within 60 calendar days of the Date of Discussion on Form 8648. If they miss this window, your request date gets penalized, and the LIDDA must submit Form 8571 — a corrective appeal — to HHSC requesting a date adjustment. Track this deadline yourself.

Step 5: Receive your CARE ID. Once registered, your child gets a CARE ID number and a position on the statewide interest list based on the original request date. This number stays with them through the entire wait.

Maintaining Active Status

Getting on the list is step one. Staying on it requires responding to your LIDDA's biennial contact — a verification check every two years where the designated primary correspondent confirms current contact information and continued interest in services.

If the LIDDA can't reach you after multiple attempts, they must mark the CSIL record as "Inactive — Unable to Locate" and mail a formal notification. Your position on the list is preserved, but no service offer will come until you contact the LIDDA to resolve the hold.

One important exception: if your child lives in an Intermediate Care Facility (ICF/IID), a State Supported Living Center, or a nursing facility, the LIDDA cannot mark the record inactive even if they can't reach the primary correspondent. This rule under Section 7580 protects institutionalized individuals from losing their tracking status.

Why Early Registration Matters

The numbers are stark. As of 2026, approximately 199,000 Texans are waiting across six major HHSC waiver programs. The HCS waiver waitlist averages 17 to 18 years. HHSC scheduled 663 TxHmL slots per month from May through August 2026; HCS releases roughly 15 per month statewide.

You do not need a formal diagnosis or proof of financial eligibility to join the interest list — just basic demographic information. The actual diagnostic and financial eligibility determination happens only when your child's name reaches the top of the list and HHSC issues an offer of enrollment. At that point, the student must have a qualifying disability onset before age 18 (or age 22 for related conditions) and meet the applicable asset and income limits, usually including a $2,000 countable resource limit, calculated solely on the student's own income and assets once they turn 18.

This means you can — and should — register years before your child needs services. The recommendation from advocacy organizations and transition planners alike is to contact the LIDDA by age 14, ideally at the same time the school begins transition planning in the IEP.

LIDDA Services During the Transition

Beyond waitlist management, LIDDAs can be active partners during the school-to-adult transition. Many LIDDAs have transition support teams that coordinate with school districts, TWC Vocational Rehabilitation Services, and community providers to help families navigate the handoff.

Ask your LIDDA about currently available supports that don't require a waiver slot — crisis respite, service coordination, and community resource referrals may be accessible while you wait.

The Texas IEP Transition to Adulthood Guide includes a LIDDA waiver tracker that logs registration dates, CARE IDs, biennial contact due dates, and form submission status across all applicable waiver programs — so nothing slips through during the years-long wait.

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