Iowa

Restriction reported

Statute defines sex, male and female by birth and reproductive biology for all Iowa statutes and rules

Laws cited: Iowa Code § 4.1A (2025 Iowa Acts ch. 1, § 1, SF 418)
In effect since: July 1, 2025
Instrument: Statute
Litigation: I found no court order blocking § 4.1A or SF 418.
Researched: September 22, 2026 (Date of the primary-source research; not a legal effective date)

From the source text

"Sex", when used to classify or describe a natural person, means the state of being either male or female as observed or clinically verified at birth.

Sources

Policy sources

Researched from primary sources

Trans Data Initiative research. Researched from primary sources (enacted text, the code on official sites, executive orders, court orders), starting from the Trans Data Initiative legislation tracker's bills. Each determination was checked independently by a second researcher; disputes were settled by a third review. No other tracker's descriptions were used.

A record is what a source reported on the date it was captured, not a legal effective date. An unobserved record is not a finding that no restrictions exist.

Dated records for Iowa in this area

July 1, 2025 Reviewed primary source

Statute defines sex, male and female by birth and reproductive biology for all Iowa statutes and rules

Iowa Code § 4.1A (2025 Iowa Acts ch. 1, § 1, SF 418)

Date basis: Effective date in the primary source. Researched September 22, 2026.

Inspect date source(opens another site)PDF, external · Iowa Code § 4.1A, Statutory construction — sex and related terms (Iowa Code 2026)(opens another site)PDF, external · SF 418 (2025), LegiScan locator(opens another site)