HB 3405 Oklahoma House · 2026 Regular Session

Agriculture; noxious weeds; poison hemlock; kudzu; eradication; effective date.

HB 3405 designates poison hemlock and kudzu as noxious weeds in Oklahoma, requiring all landowners (public and private) to treat or remove these plants annually to prevent seeding. It mandates county entities and the Department of Transportation to manage infestations in rights-of-way, with landowners facing fines up to $1,000 per day for noncompliance. The bill requires the State Department of Agriculture to conduct annual surveys of infestations, report results to Oklahoma State University, and publish public notices in newspapers about landowner responsibilities. The law takes effect November 1, 2026, and includes provisions for landowners to request assistance with weed removal.

Issues: ✓ Transportation

Bill status passed 3 of 5 stages cleared

Introduction

Feb 2026

Committee Review

Mar 2026

House Passage

Mar 2026

Senate Passage

Governor

Introduced Feb 2, 2026 Last action Apr 1, 2026

Maddy AI version diff · 4 comparisons

What changed between versions

House Committee Substitute → Floor (House) · 1 edit

MINOR

The bill text was updated to reflect the House Floor version, replacing the 'Committee Substitute' header with 'House of Representatives - Floor Version' and adding co-author Pederson of the Senate. The substantive policy content regarding noxious weed definitions, landowner duties, and penalties remains identical to the previous committee version.

TECHNICAL

Updated the document header to indicate this is the House Floor version and added the Senate co-author's name.

Floor votes · House Mar 9, 2026

How they voted

81–8

Passed · 11 other

Total votes 100

Mar 9, 2026

D Democratic18

13 Yea 3 Nay 2

72% Yea

R Republican82

68 Yea 5 Nay 9

82% Yea

Vote distribution

All Yea All Nay Mixed No data

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Mar 10, 2026

Introduced

First Reading

upper

Mar 10, 2026

Lower · Passed

Engrossed, signed, to Senate

lower

Mar 9, 2026

Committee

Referred for engrossment

lower

Mar 9, 2026

Lower · Passed

Third Reading, Measure passed: Ayes: 80 Nays: 8

lower

Feb 25, 2026

Lower · Passed

CR; Do Pass, amended by committee substitute Energy and Natural Resources Oversight Committee

lower

Feb 10, 2026

Lower · Passed

Policy recommendation to the Energy and Natural Resources Oversight committee; Do Pass, amended by committee substitute Agriculture

lower

Feb 3, 2026

Committee

Referred to Agriculture

lower

Feb 2, 2026

Introduced

First Reading

lower

2 primary · 0 co-sponsors