Can I reapply to Regional Center? Does a certain amount of time need to pass before I can apply again?

If your child was denied eligibility for Regional Center services, you can reapply later. However, you generally cannot apply again with the same set of evidence; circumstances should have changed if you want Regional Center to reconsider your child's eligibility.

For example, if your child didn’t qualify the first time because they didn’t have a diagnosis and now they do, that could be a reason to re-apply. If your child had a diagnosis but didn’t have enough areas of substantial disability as a small child, but the gap has increased between them and their typically-developing peers or they’re old enough for the Regional Center to consider economic self-sufficiency and capacity for independent living, those might also be reasons to re-apply.

It's especially important to show new evidence if you're applying again after you were denied an earlier appeal. You have to show that things have changed, and you’re not trying to relitigate the same issues.