SB 459 New Hampshire Senate · 2026 Regular Session

exempting classification of individuals based on biological sex from the definition of an unlawful discriminatory practice in certain limited circumstances.

SB 459 requires New Hampshire schools to designate athletic teams and locker rooms based on students' biological sex at birth, as listed on their birth certificates. It applies to grades 6-12 (excluding K-5 and intramural/club sports) and mandates separate housing for prison inmates based on biological sex as recorded on their birth certificates. The bill creates legal remedies for athletes harmed by violations, including injunctions and attorney fees, while exempting schools from liability for following the law. It takes effect January 1, 2027.
Bill status failed 3 of 5 stages cleared
Introduction
Nov 2025
Committee Review
Apr 2026
Senate Passage
Mar 2026
House Passage
Governor
Introduced Nov 21, 2025 Last action Apr 23, 2026
Maddy AI version diff · 1 comparison

What changed between versions

Introduced As Amended by the Senate · 8 edits
MODERATE
The Senate completely restructured SB 459, shifting from creating new standalone mandates for school athletics and prison housing to carving out narrow exceptions from the state's existing anti-discrimination law (RSA 354-A). Instead of requiring schools to designate teams by biological sex or mandating separate locker rooms, the amended bill simply states that classifying people by biological sex is not an unlawful discriminatory practice in two specific contexts: certain athletic competitions and involuntary commitment facilities. The effective date was also moved up from January 1, 2027 to 60 days after passage.
Scope change
The bill shifted from a prescriptive mandate approach (telling schools and prisons exactly what to do) to an anti-discrimination exception approach (removing biological sex classification from the definition of unlawful discrimination in two specific contexts). The athletics provision now applies more broadly beyond school-sponsored events, while the facility provision expanded to include mental health hospitals and juvenile commitment centers.
SCOPE

The bill's legal approach changed entirely. The introduced version created a new chapter (RSA 193-L) with specific mandates for school athletics and a new section in the corrections code. The amended version instead modifies the existing anti-discrimination statute (RSA 354-A) to exclude biological sex classification from the definition of unlawful discrimination in limited circumstances.

Athletics coverage broadened beyond school-sponsored events. The introduced version applied only to interscholastic and intercollegiate sports sponsored by schools or state-controlled organizations. The amended version applies to any athletic or sporting event where physical strength, speed, or endurance is generally recognized to give biological males an advantage, regardless of who sponsors it.

Facility coverage expanded beyond prisons and detention centers. The introduced version applied only to correctional and detention facilities under RSA 21-H and 30-B. The amended version covers prisons, houses of correction, juvenile detention or commitment centers, mental health hospitals or treatment centers, and like facilities where persons may be committed involuntarily.

The exemptions for grades K-5 and for intramural or club sports were removed, though the new broader language about physical advantage may cover some of the same ground differently.

REQUIREMENT

The specific locker room separation requirement was eliminated entirely. The introduced version mandated separate locker rooms based on biological sex for all school athletics; the amended version contains no such provision.

ENFORCEMENT

The private right of action for athletes was removed. The introduced version gave individual athletes a direct lawsuit right against schools for violations, including retaliation claims and attorney's fees. The amended version relies on the existing anti-discrimination enforcement framework instead.

DEFINITION

The definition of biological sex changed. The introduced version tied it to the sex listed on an official birth certificate issued at or near birth. The amended version simply defines it as 'the male and female biological sexes' without reference to any documentation.

TIMELINE

Effective date changed from January 1, 2027 to 60 days after passage of the act.

Floor votes

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Full legislative history

Actions timeline

Total actions
13
Key actions
4
Committee
5
Apr 15, 2026
Committee
Committee Report: Inexpedient to Legislate 04/08/2026 (Vote 18-0; CC)
lower
Mar 27, 2026
Introduced
Introduced (in recess of) 03/26/2026 and referred to Judiciary HJ 9 P. 2
lower
Mar 26, 2026
Upper · Passed
Ought to Pass with Amendment #2026-1217s, RC 15Y-9N, MA; OT3rdg; 03/26/2026; SJ 7
upper
Mar 26, 2026
Upper · Passed
Committee Amendment # 2026-1217s, AA, VV; 03/26/2026; SJ 7
upper
Mar 26, 2026
Upper · Passed
Committee Amendment # 2026-1217s, AF, VV; 03/26/2026; SJ 7
upper
Mar 18, 2026
Upper · Passed
Committee Report: Ought to Pass with Amendment # 2026-1217s, 03/26/2026, Vote 3-1; SC 11
upper
Nov 21, 2025
Introduced
Introduced 01/07/2026 and Referred to Judiciary; SJ 1
upper
1 primary · 9 co-sponsors

Sponsors