Back to Florida

HB0411 • 2026

Developmental Disabilities

Developmental Disabilities

Passed Legislature

This bill passed both chambers and reached final enrollment, even if later executive action is not shown here.

Sponsor
Human Services Subcommittee ; Maggard
Last action
2026-03-13
Official status
House - Died in Health & Human Services Committee
Effective date
2026-07-01

Plain English Breakdown

There is a conflict between the 'Official status explanation' stating the bill passed and reached final enrollment versus the 'Last action' indicating it died in committee. The effective date listed (July 1, 2026) suggests passage, but the committee death note creates uncertainty about its current legal standing.

Developmental Disabilities: Adding Tatton-Brown-Rahman Syndrome

This bill updates Florida law to include Tatton-Brown-Rahman syndrome in the official list of developmental disabilities.

What This Bill Does

  • Adds Tatton-Brown-Rahman syndrome to the legal definition of a developmental disability.
  • Defines Tatton-Brown-Rahman syndrome as a disorder caused by a mutation in the DNMT3A gene.
  • Lists specific features that identify this syndrome, such as intellectual disability, large head size (macrocephaly), and stature or weight at least two standard deviations above average for age and sex.
  • Includes other possible symptoms like facial differences, joint hypermobility, low muscle tone, spinal curvature, seizures, undescended testicles, behavior deficits, and blood cancers.

Who It Names or Affects

  • People in Florida with Tatton-Brown-Rahman syndrome who need services for developmental disabilities.
  • State agencies that determine eligibility for disability programs based on these definitions.

Terms To Know

Developmental disability
A disorder or syndrome, such as autism or Down syndrome, that starts before age 18 and causes a substantial handicap expected to last indefinitely.
Tatton-Brown-Rahman syndrome
A genetic disorder caused by changes in the DNMT3A gene that leads to intellectual disability and physical traits like large head size or low muscle tone.

Limits and Unknowns

  • The bill text does not explain how this change affects funding amounts for services.
  • The official status shows conflicting information: the summary says it passed, but the last action listed is that it died in committee on March 13, 2026.

Bill History

  1. 2026-03-13 House

    • Died in Health & Human Services Committee

  2. 2026-02-16 House

    • Referred to Health & Human Services Committee • Now in Health & Human Services Committee

  3. 2026-02-13 House

    • Reported out of Human Services Subcommittee • Laid on Table under Rule 7.18(a) • CS Filed • 1st Reading (Committee Substitute 1)

  4. 2026-02-12 House

    • Favorable with CS by Human Services Subcommittee

  5. 2026-02-10 House

    • PCS added to Human Services Subcommittee agenda

  6. 2026-01-13 House

    • 1st Reading (Original Filed Version)

  7. 2025-11-18 House

    • Referred to Human Services Subcommittee • Referred to Health Care Budget Subcommittee • Referred to Health & Human Services Committee • Now in Human Services Subcommittee

  8. 2025-11-12 House

    • Filed

Official Summary Text

Developmental Disabilities; Revises definition of term "developmental disability"; defines "Tatton-Brown-Rahman syndrome ."

Current Bill Text

Read the full stored bill text
CS/HB 411 2026

CODING: Words stricken are deletions; words underlined are additions.
hb411-01-c1
Page 1 of 2
F L O R I D A H O U S E O F R E P R E S E N T A T I V E S

A bill to be entitled 1
An act relating to developmental disabilities; 2
amending s. 393.063, F.S.; revising the definition of 3
the term "developmental disability"; defining the term 4
"Tatton-Brown-Rahman syndrome"; providing an effective 5
date. 6
7
Be It Enacted by the Legislature of the State of Florida: 8
9
Section 1. Subsections (46) and (47) of section 393.063, 10
Florida Statutes, are renumbered as subsections (47) and (48), 11
respectively, subsection (11) is amended, and a new subsection 12
(46) is added to that section, to read: 13
393.063 Definitions.—For the purposes of this chapter, the 14
term: 15
(11) "Developmental disability" means a disorder or 16
syndrome that is attributable to intellectual disability, 17
cerebral palsy, autism, spina bifida, Down syndrome, Phelan-18
McDermid syndrome, or Prader-Willi syndrome, or Tatton-Brown-19
Rahman syndrome; that manifests before the age of 18; and that 20
constitutes a substantial handicap that can reasonably be 21
expected to continue indefinitely. 22
(46) "Tatton-Brown-Rahman syndrome" means a disorder 23
caused by a mutation in the DNMT3A gene typified by mild to 24
severe intellectual disability, macrocephaly, stature and weight 25

CS/HB 411 2026

CODING: Words stricken are deletions; words underlined are additions.
hb411-01-c1
Page 2 of 2
F L O R I D A H O U S E O F R E P R E S E N T A T I V E S

that is greater than or equal to two or more standard deviations 26
above the mean for the person's age and sex, and any of the 27
following features presenting in infancy, childhood, or 28
adolescence: 29
(a) Mild facial dysmorphism. 30
(b) Joint hypermobility. 31
(c) Hypotonia. 32
(d) Kyphoscoliosis. 33
(e) Seizures. 34
(f) Cryptorchidism. 35
(g) Deficits in behavior. 36
(h) Hematologic malignancies. 37
Section 2. This act shall take effect July 1, 2026. 38