Traditional vs. SDP: It's About Structure, Not Just Freedom

There are two main ways to receive services through a regional center: the Traditional model, which most families use, and SDP (Self-Determination Program), which is now open to anyone who is eligible and chooses it.

When people hear about SDP, the first impression is often "we can use the money freely." I see it a little differently. Before freedom, what you really need to understand is the difference in structure between the two.

Part 1. The Two Models at a Glance

Part 2. The Structure Behind the Word "Freedom"

The word used most often to describe SDP is "freedom." The law also names freedom as one of SDP's principles. That's true — but that freedom comes with structure.

Traditional flow: request → approval → the regional center carries it out

• The parent says, "We need this service."
• The SC coordinates and the regional center approves.
• The regional center pays the vendor.
• The parent is in the position of "receiving" services.

SDP flow: plan → carry out → document

• The participant (family) creates a Person-Centered Plan.
• An Individual Budget is set with the regional center.
• Within the budget, the family creates a Spending Plan and chooses or hires providers directly.
• The FMS handles payroll, taxes, and payments.
• Records and documentation are needed for what is spent.

In one line: Traditional is "a system the regional center runs for you," and SDP is "a system your family runs." As your choices widen, your responsibilities grow too.

Part 3. So, Who Is Each One For? (A Neutral Look)

This does not mean SDP is always better or Traditional is worse. It isn't a question of the "right answer" — it's a question of fit.

Traditional may be a better fit when:

• You're new to the system and still figuring out which services you need
• It's hard to spend time and energy on paperwork or managing providers
• Your relationship with your current SC is good and you have no major concerns
• Needs change often, and directing services yourself would feel like a burden

SDP may be a better fit when:

• It's hard to find the services you want under Traditional, or vendor choices feel limited
• You'd like to use someone you trust, or a family member, as a provider (conditions apply)
• You're comfortable with budgeting and record-keeping, or willing to learn
• You want to design services tailored to your child

Keep in mind:

• SDP is voluntary. No one is required to join.
• If it isn't working for you, you can return to Traditional services.
• If you're interested in SDP, let your SC know. The first step is attending an orientation.

Three Common Misunderstandings

Myth 1. "SDP will increase our budget."

The SDP budget is generally based on what was spent on your Traditional services over the most recent 12 months. It doesn't automatically go up. However, if there are unmet needs or a change in circumstances, you can ask for an adjustment.

Myth 2. "With SDP, we can spend the money however we want."

You can freely choose — but you can't spend freely. The Spending Plan goes through an approval process, must connect to IPP goals, and spending needs to be documented.

Myth 3. "Under Traditional, we can't choose anything."

Under Traditional services, you can still share preferences about providers, ask to adjust the amount of services, and request IPP changes. The range of choice is narrower than in SDP, but it isn't zero.

Wrap-Up

The difference between the two isn't good versus bad — it's "who is driving." Either way, a parent's involvement shapes the outcome. Starting with the next guide, for families interested in SDP, we'll look at why getting started can feel hard, and how to begin.

Further Reading

• DDS Self-Determination Program
• Disability Rights California — SDP explained (RULA)

Please note

This guide is general information for California families new to developmental disability services. It is not legal or medical advice. Rules and procedures can change, so please confirm current details with DDS and your regional center or your service coordinator (SC).