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HB1933 • 2026

Nitrous oxide; Maddix Bias Act; definition; sale of nitrous oxide to persons under twenty-one; legal age; enforcement; penalty; imprisonment; effective date.

Nitrous oxide; Maddix Bias Act; definition; sale of nitrous oxide to persons under twenty-one; legal age; enforcement; penalty; imprisonment; effective date.

Enacted

This bill passed the Legislature and reached final enactment based on the latest official action.

Sponsor
Sterling
Last action
2026-05-11
Official status
Approved by Governor 05/11/2026
Effective date
Not listed

Plain English Breakdown

Using official source text because the generated explanation was unavailable or could not be confirmed against the official bill text.

Nitrous oxide; Maddix Bias Act; definition; sale of nitrous oxide to persons under twenty-one; legal age; enforcement; penalty; imprisonment; effective date.

Nitrous oxide; Maddix Bias Act; definition; sale of nitrous oxide to persons under twenty-one; legal age; enforcement; penalty; imprisonment; effective date.

What This Bill Does

  • Nitrous oxide; Maddix Bias Act; definition; sale of nitrous oxide to persons under twenty-one; legal age; enforcement; penalty; imprisonment; effective date.
  • Bill Summaries/Fiscal Impact for HB 1933 (House): Proposed Policy Committee Substitute 1 (2/21/2025) Bill Summaries/Fiscal Impact for HB 1933 (House): Proposed Policy Committee Recommendation (3/3/2025) Bill Summaries/Fiscal Impact for HB 1933 (House): Committee Substitute (3/12/2025) Bill Summaries/Fiscal Impact for HB 1933 (House): Senate Amendment to House Bill (4/30/2026)

Limits and Unknowns

  • This entry is temporarily using official source text because the generated explanation could not be confirmed against the official bill text during the last sync.

Amendments

These notes stay tied to the official amendment files and metadata from the legislature.

Plain English: (Floor Amendments Only) Date and Time Filed: Untimely Amendment Cycle Extended Secondary Amendment SENATE CHAMBER STATE OF OKLAHOMA DISPOSITION FLOOR AMENDMENT No.

  • (Floor Amendments Only) Date and Time Filed: Untimely Amendment Cycle Extended Secondary Amendment SENATE CHAMBER STATE OF OKLAHOMA DISPOSITION FLOOR AMENDMENT No.
  • ________ COMMITTEE AMENDMENT (Date) I move to amend House Bill No.
  • 1933 as follows: 1.
  • On Page 3, Line 19, by deleting after the word “violates” and before the word “subsection”, the word “this” and inserting the words “the provisions of”; 2.

Plain English: Req.

  • Req.
  • No.
  • 12749 Page 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 STATE OF OKLAHOMA 1st Session of the 60th Legislature (2025) POLICY COMMITTEE RECOMMENDATION FOR HOUSE BILL NO.
  • 1933 By: Sterling POLICY COMMITTEE RECOMMENDATION An Act relating to nitrous oxide; providing definition; prohibiting the sale of nitrous oxide to persons under twenty-one; requiring proof of legal age; providing for enforcement; providing penalty; providing for imprisonment; providing exceptions; providing for noncodification; providing for codification; and providing an effective date.

Plain English: HB1933 POLPCS1 Danny Sterling-TJ 2/10/2025 6:37:08 pm AMEND TITLE TO CONFORM TO AMENDMENTS Amendment submitted by: Danny Sterling Adopted: _____________________________ ______________________________________ Reading Clerk COMMITTEE AMENDMENT HOUSE OF REPRESENTATIVES State of Oklahoma SPEAKER: CHAIR: I move to amend HB1933 Of the printed Bill Page Section Lines Of the Engrossed Bill By deleting the content of the entire measure, and by inserting in lieu thereof the following language: Req.

  • HB1933 POLPCS1 Danny Sterling-TJ 2/10/2025 6:37:08 pm AMEND TITLE TO CONFORM TO AMENDMENTS Amendment submitted by: Danny Sterling Adopted: _____________________________ ______________________________________ Reading Clerk COMMITTEE AMENDMENT HOUSE OF REPRESENTATIVES State of Oklahoma SPEAKER: CHAIR: I move to amend HB1933 Of the printed Bill Page Section Lines Of the Engrossed Bill By deleting the content of the entire measure, and by inserting in lieu thereof the following language: Req.
  • No.
  • 12353 Page 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 STATE OF OKLAHOMA 1st Session of the 60th Legislature (2025) PROPOSED POLICY COMMITTEE SUBSTITUTE FOR HOUSE BILL NO.
  • 1933 By: Sterling PROPOSED POLICY COMMITTEE SUBSTITUTE An Act relating to nitrous oxide; providing definition; prohibiting the sale of nitrous oxide to persons under twenty-one; requiring proof of legal age; providing for enforcement; providing penalty; providing for imprisonment; providing exceptions; providing for noncodification; providing for codification; and providing an effective date.

Bill History

  1. 2026-05-11 House

    Approved by Governor 05/11/2026

  2. 2026-05-05 House

    Enrolled, signed, to Senate

  3. 2026-05-05 Senate

    Enrolled measure signed, returned to House

  4. 2026-05-05 House

    Sent to Governor

  5. 2026-05-04 House

    SA's read, adopted

  6. 2026-05-04 House

    Coauthored by Representative(s) Provenzano

  7. 2026-05-04 House

    Fourth Reading, Measure passed: Ayes: 90 Nays: 0

  8. 2026-05-04 House

    Referred for enrollment

  9. 2026-04-21 Senate

    Engrossed to House

  10. 2026-04-21 House

    SA's received

  11. 2026-04-20 Senate

    Signing rescinded

  12. 2026-04-20 Senate

    Third Reading and advancement rescinded

  13. 2026-04-20 Senate

    Backed up to General Order

  14. 2026-04-20 Senate

    Senate Rule suspended

  15. 2026-04-20 Senate

    General Order, Amended

  16. 2026-04-20 Senate

    Measure passed: Ayes: 47 Nays: 0

  17. 2026-04-20 Senate

    Referred for engrossment

  18. 2026-04-16 House

    Recalled from enrollment

  19. 2026-04-16 House

    Returned to Senate

  20. 2026-04-15 Senate

    General Order, Considered

  21. 2026-04-15 Senate

    Measure passed: Ayes: 45 Nays: 0

  22. 2026-04-15 Senate

    Engrossed measure signed, returned to House

  23. 2026-04-15 House

    Referred for enrollment

  24. 2026-04-13 Senate

    Coauthored by Senator McIntosh

  25. 2025-04-23 Senate

    Placed on General Order

  26. 2025-04-21 Senate

    Reported Do Pass Health and Human Services committee; CR filed

  27. 2025-04-03 Senate

    Coauthored by Senator Jett

  28. 2025-04-01 Senate

    Second Reading referred to Health and Human Services

  29. 2025-03-17 House

    Engrossed, signed, to Senate

  30. 2025-03-17 Senate

    First Reading

  31. 2025-03-17 Senate

    Coauthored by Senator Frix

  32. 2025-03-13 House

    General Order

  33. 2025-03-13 House

    Third Reading, Measure passed: Ayes: 89 Nays: 0

  34. 2025-03-13 House

    Referred for engrossment

  35. 2025-03-06 House

    CR; Do Pass, amended by committee substitute Health and Human Services Oversight Committee

  36. 2025-02-24 House

    Policy recommendation to the Health and Human Services Oversight committee; Do Pass, amended by committee substitute Alcohol, Tobacco and Controlled Substances

  37. 2025-02-24 House

    Authored by Senator Weaver (principal Senate author)

  38. 2025-02-04 House

    Second Reading referred to Health and Human Services Oversight

  39. 2025-02-04 House

    Referred to Alcohol, Tobacco and Controlled Substances

  40. 2025-02-03 House

    First Reading

  41. 2025-02-03 House

    Authored by Representative Sterling

Official Summary Text

Nitrous oxide; Maddix Bias Act; definition; sale of nitrous oxide to persons under twenty-one; legal age; enforcement; penalty; imprisonment; effective date.
Bill Summaries/Fiscal Impact for HB 1933 (House): Proposed Policy Committee Substitute 1 (2/21/2025)
Bill Summaries/Fiscal Impact for HB 1933 (House): Proposed Policy Committee Recommendation (3/3/2025)
Bill Summaries/Fiscal Impact for HB 1933 (House): Committee Substitute (3/12/2025)
Bill Summaries/Fiscal Impact for HB 1933 (House): Senate Amendment to House Bill (4/30/2026)

Current Bill Text

Read the full stored bill text
An Act
ENROLLED HOUSE
BILL NO. 1933 By: Sterling and Provenzano of
the House

and

Weaver, Frix, Jett, and
McIntosh of the Senate

An Act relating to nitrous oxide; creating the Maddix
Bias Act; defining term; prohibiting the sale of
nitrous oxide to persons under twenty-one; requiring
proof of legal age; providing for enforcement;
providing penalty; providing for imprisonment;
providing exceptions; providing for noncodification;
and providing for codification.

SUBJECT: Nitrous oxide

BE IT ENACTED BY THE PEOPLE OF THE STATE OF OKLAHOMA:

SECTION 1. NEW LAW A new section of law not to be
codified in the Oklahoma Statutes reads as follows:

This act shall be known and may be cited as the "Maddix Bias
Act".

SECTION 2. NEW LAW A new section of law to be codified
in the Oklahoma Statutes as Section 465.22 of Title 63, unless there
is created a duplication in numbering, reads as follows:

A. As used in this section, "nitrous oxide" means any of the
following substances: N2O, dinitrogen monoxide, dinitrogen oxide,
nitrogen oxide, or laughing gas.

B. 1. This act prohibits any person to inhale, ingest, or
possess with intent to breathe, inhale, or drink any compound,
liquid, or chemical containing nitrous oxide, or any similar
substance for the purpose of inducing a condition of intoxication or
which distorts or disturbs the auditory, visual, or mental
processes.
ENR. H. B. NO. 1933 Page 2

2. It is unlawful for any person to inhale, ingest, possess,
buy, sell, or otherwise transfer any chemical substance defined in
subsection A of this section for the purpose of inducing or aiding
any other person to violate the provisions of paragraph 1 of this
subsection.

C. On and after the effective date of this act, violation of
subsection B of this section is a misdemeanor with imprisonment up
to ninety (90) days or a fine of Five Thousand Dollars ($5,000.00),
or both. The court may require any person to participate in an
approved drug rehabilitation program as a condition of probation.

D. Any person who knowingly distributes, sells, purchases,
transfers, or possesses more than sixteen (16) grams of nitrous
oxide commits a misdemeanor with imprisonment up to ninety (90) days
or a fine of Five Thousand Dollars ($5,000.00), or both. Knowingly
distributing, selling, purchasing, transferring, or possessing more
than sixteen (16) grams of nitrous oxide shall be known as unlawful
distribution of nitrous oxide. For purposes of this subsection, in
addition to proving by any other means that nitrous oxide was
knowingly possessed, distributed, sold, purchased, or transferred,
proof that any person discharged, or aided another in discharging,
nitrous oxide to inflate a balloon or any other object suitable for
subsequent inhalation creates an inference of the person's knowledge
that the nitrous oxide's use was for an unlawful purpose.

E. Additionally, any person twenty-one (21) years of age or
older who sells or offers to sell drug paraphernalia to a person
less than eighteen (18) years of age is guilty of a misdemeanor
punishable by imprisonment for up to one (1) year or a fine of up to
Seven Thousand Five Hundred Dollars ($7,500.00), or both. These
provisions would only apply to the selling or offering of an object
specifically designed for inhaling nitrous oxide for recreational
purposes.

F. Pursuant to this act, the court shall order the suspension
of the business license, for a period of up to one (1) year, of a
person who knowingly violates the provisions of subsection E of this
section after having been previously convicted of a violation of
subsection E of this section, unless the owner of the business
license can demonstrate a good-faith attempt to prevent illegal
sales or deliveries by the owner's employees.

ENR. H. B. NO. 1933 Page 3
G. This act shall not apply to any person who administers
nitrous oxide for the purpose of providing medical or dental care,
if administered by a medical or dental practitioner licensed by this
state or at the direction or under the supervision of a practitioner
licensed by this state.

H. This act does not apply to the sale of nitrous oxide
contained in food products for use as a propellant.

I. This act does not apply to the sale, use, or possession of
nitrous oxide containing sulfur dioxide used for automotive
purposes.

J. This act does not apply to the sale, use, or possession of
nitrous oxide used in manufacturing or use in an industrial
application.

K. This act does not apply to nitrous oxide cartridges or
whipped cream "chargers" purchased exclusively from commercial
restaurant supply companies or vendors exclusively to commercial
restaurants or bakery businesses that use nitrous oxide cartridges
for the sole purpose of producing whipped cream or other culinary
uses.

ENR. H. B. NO. 1933 Page 4
Passed the House of Representatives the 4th day of May, 2026.

Presiding Officer of the House
of Representatives

Passed the Senate the 20th day of April, 2026.

Presiding Officer of the Senate

OFFICE OF THE GOVERNOR
Received by the Office of the Governor this ____________________
day of ___________________, 20_______, at _______ o'clock _______ M.
By: _________________________________
Approved by the Governor of the State of Oklahoma this _________
day of ___________________, 20_______, at _______ o'clock _______ M.

_________________________________
Governor of the State of Oklahoma

OFFICE OF THE SECRETARY OF STATE
Received by the Office of the Secretary of State this __________
day of ___________________, 20_______, at _______ o'clock _______ M.
By: _________________________________