Is Nitrous Oxide (whippets, Galaxy Gas) Legal in Colorado? (2026)

Instrument

Schedule I (hallucinogenic substances)

Source

https://content.leg.colorado.gov/sites/default/files/images/olls/crs2024-title-18.pdf

Retrieved

2026-10-29

Fingerprint

0885eb5b14a72d91

18-18-203.    Schedule  I.  (1)    A  substance  shall  be  added  to  schedule  I  by  the  general

assembly when:

(a)  The substance has high potential for abuse;
(b)    The  substance  has  no  currently  accepted  medical  use  in  treatment  in  the  United

States; and

(c)  The substance lacks accepted safety for use under medical supervision.
(2)    Unless  specifically  excepted  by  Colorado  or  federal  law  or  Colorado  or  federal
regulation or more specifically included in another schedule, the following controlled substances
are listed in schedule I:

(a)    Any  of  the  following  synthetic  opiates,  including  any  isomers,  esters,  ethers,  salts,
and salts of isomers, esters, and ethers of them that are theoretically possible within the specific
chemical designation:

(I)    Acetyl-alpha-methylfentanyl    (N-[1-(1-methyl-2-phenethyl)-4-piperidinyl  ]  -N-

phenylacetamide);

(II)  Acetylmethadol;
(III)  Allylprodine;
(IV)  Alphacetylmethadol;

Colorado Revised Statutes 2024

Page 687 of  783

Uncertified Printout

(V)  Alphameprodine;
(VI)  Alphamethadol;
(VII)

  Alpha-methylfentanyl

(N-[1-(alpha-methyl-beta-phenyl)

ethyl-4-piperidyl]

propionanilide; 1-(1-methyl-2-phenylethyl)- 4-(N-propanilido) piperidine);

(VIII)
phenylpropanamide);

  Alpha-methylthiofentanyl  (N-[1-methyl-2-(2-thienyl)  ethyl-4-piperidinyl]-N-

(IX)  Benzethidine;
(X)  Betacetylmethadol;
(XI)
phenylpropanamide);

  Beta-hydroxyfentanyl

(N-[1-(2-hydroxy-2-phenethyl)-4-

piperidinyl]-N-

(XII)    Beta-hydroxy-3-methylfentanyl  (other  name:  N-[1-(2-hydroxy-2-phenethyl)-3-

methyl-4-piperidinyl-] N-phenylpropanamide);

(XIII)  Betameprodine;
(XIV)  Betamethadol;
(XV)  Betaprodine;
(XVI)  Clonitazene;
(XVII)  Dextromoramide;
(XVIII)  Diampromide;
(XIX)  Diethylthiambutene;
(XX)  Difenoxin;
(XXI)  Dimenoxadol;
(XXII)  Dimepheptanol;
(XXIII)  Dimethylthiambutene;
(XXIV)  Dioxaphetyl butyrate;
(XXV)  Dipipanone;
(XXVI)  Ethylmethylthiambutene;
(XXVII)  Etonitazene;
(XXVIII)  Etoxeridine;
(XXIX)  Furethidine;
(XXX)  Hydroxypethidine;
(XXXI)  Ketobemidone;
(XXXII)  Levomoramide;
(XXXIII)  Levophenacylmorphan;
3-methylfentanyl
(XXXIV)

(N-[3-methyl-1-(2-

phenylethyl)-4-piperidyl]-N-

phenylpropanamide);

(XXXV)

  3-methylthiofentanyl

(N-[3-methyl-1-(2-

thienyl)ethyl-4-piperidinyl]-N-

phenylpropanamide);

(XXXVI)  Morpheridine;
(XXXVII)  MPPP (1-methyl-4-phenyl-4-propionoxypiperidine);
(XXXVIII)  Noracymethadol;
(XXXIX)  Norlevorphanol;
(XL)  Normethadone;
(XLI)  Norpipanone;
(XLII)    Para-fluorofentanyl  (N-(4-fluorophenyl)-N-  [1-(2-phenethyl)  -4-piperidinyl]-

propanamide);

Colorado Revised Statutes 2024

Page 688 of  783

Uncertified Printout

(XLIII)  PEPAP (1-(-2-phenethyl)-4-phenyl- 4-acetoxypiperidine);
(XLIV)  Phenadoxone;
(XLV)  Phenampromide;
(XLVI)  Phenomorphan;
(XLVII)  Phenoperidine;
(XLVIII)  Piritramide;
(XLIX)  Proheptazine;
(L)  Properidine;
(LI)  Propiram;
(LII)  Racemoramide;
(LIII)  Thiofentanyl (N-phenyl-N-[1-(2- thienyl) ethyl-4-piperidinyl]-propanamide);
(LIV)  Tilidine;
(LV)  Trimeperidine.
(b)  Any of the following opium  derivatives,  including their salts,  isomers, and salts  of

isomers of them that are theoretically possible within the specific chemical designation:

(I)  Acetorphine;
(II)  Acetyldihydrocodeine;
(III)  Benzylmorphine;
(IV)  Codeine methylbromide;
(V)  Codeine-N-Oxide;
(VI)  Cyprenorphine;
(VII)  Desomorphine;
(VIII)  Dihydromorphine;
(IX)  Drotebanol;
(X)  Etorphine, except hydrochloride salt;
(XI)  Heroin;
(XII)  Hydromorphinol;
(XIII)  Methyldesorphine;
(XIV)  Methyldihydromorphine;
(XV)  Morphine methylbromide;
(XVI)  Morphine methylsulfonate;
(XVII)  Morphine-N-Oxide;
(XVIII)  Myrophine;
(XIX)  Nicocodeine;
(XX)  Nicomorphine;
(XXI)  Normorphine;
(XXII)  Pholcodine;
(XXIII)  Thebacon.
(c)    Any  material,  compound,  mixture,  or  preparation  containing  any  quantity  of  the
following hallucinogenic substances, including any salts, isomers, and salts of isomers of them
that are theoretically possible within the specific chemical designation:

(I)    4-bromo-2,  5-dimethoxy-amphetamine  (Some  trade  or  other  names:  4-bromo-2,  5-

dimethoxy-alpha- methylphenethylamine; 4-bromo-2, 5-DMA.);

(II)    2,5-dimethoxyamphetamine  (Some  trade  or  other  names:  2,5-dimethoxy-alpha-

methylphenethylamine; 2,5-DMA.);

Colorado Revised Statutes 2024

Page 689 of  783

Uncertified Printout

(II.5)  2,5-Dimethoxy-4-ethylamphetamine (DOET);
(III)

  4-methoxyamphetamine  (Some

trade  or  other  names:  4-methoxy-alpha-

methylphenethylamine; paramethoxyamphetamine, PMA.);
(IV)  5-methoxy-3,4-methylenedioxy amphetamine;
(IV.5)  5-methoxy-N, N-diisopropyltryptamine (5-MeO-DiPT);
(V)  4-methyl-2,5-dimethoxy-amphetamine (Some trade and other names: 4-methyl-2,5-

dimethoxy-alpha- methylphenethylamine; DOM; and STP.);

(VI)  3,4-methylenedioxy amphetamine;
(VII)

that

except

(MDMA);

3,4-methylenedioxymethamphetamine

3,4-
methylenedioxymethamphetamine  (MDMA)  does  not  include  a  prescription  drug  product
containing  3,4-methylenedioxymethamphetamine  (MDMA)  approved  by  the  federal  food  and
drug  administration  and  placed  on  a  schedule  of  the  federal  “Controlled  Substances  Act”,  21
U.S.C.  sec.  801  et  seq., as amended, other than schedule I, or has been exempted from one or
more provisions of such act, and that is intended for prescribed use and dispensed by a pharmacy
or  prescription  drug  outlet  registered  by  the  state  of  Colorado  and  only  possessed  by  a  person
authorized  to  possess  a  controlled  substance  pursuant  to  section  18-18-302.  Any  such  drug
product containing MDMA that is approved by the federal food and drug administration must be
controlled  in  Colorado  in  the  same  manner  as  required  by  any  federal  control  designation
pursuant  to  the  federal  “Controlled  Substances  Act”,  or  any  exemption  from  one  or  more
provisions of that act, and subject to the provisions set forth in part 1 of article 280 of title 12 and
part 3 of this article 18. Nothing in this section exempts a person from any violation of part 4 of
this article 18.

(VIII)  3,4,5-trimethoxy amphetamine;
(VIII.5)  Alpha-methyltryptamine (AMT);
(IX)

  Bufotenine  (Some  trade  and  other  names:  3-(beta-Dimethylaminoethyl)-5-
hydroxyindole;  3-(2-  dimethylaminoethyl)-5-indolol;  N,  N-dimethylserotonin;  5-hydroxy-N,N-
dimethyltryptamine; mappine.);

(X)  Diethyltryptamine (Some trade or other names: N,N-Diethyltryptamine; DET.);
(XI)  Dimethyltryptamine (Some trade or other names: DMT.);
(XII)  Ibogaine (Some trade and other names: (7-Ethyl-6,6B,7,8,9,10,12,13-octahydro-2-

methoxy-6,9-methano-5H-pyrido [1', 2':1,2] azepine [5,4- b] indole; Tabernanthe iboga.);

(XIII)  Lysergic acid diethylamide;
(XIV)  Mescaline;
(XV)    Parahexyl  (Some  trade  or  other  names:  3-Hexyl-1-hydroxy-7,8,9,10-tetrahydro-

6,6,9- trimethyl-6H-dibenzo[b,d]pyran; Synhexyl.);

(XVI)    Peyote  (Meaning  all  parts  of  the  plant  classified  botanically  as  Lophophora
williamsii Lemaire, whether growing or not, its seeds, any extract from any part of the plant, and
every compound, salt, derivative, mixture, or preparation of the plant, or its seeds or extracts);

(XVII)  N-ethyl MDA;
(XVIII)  N-ethyl-3-piperidyl benzilate;
(XIX)  N-hydroxy MDA;
(XX)  N-methyl-3-piperidyl benzilate;
(XXI)  Psilocybin;
(XXII)  Psilocyn;
(XXIII)  Tetrahydrocannabinols;

Colorado Revised Statutes 2024

Page 690 of  783

Uncertified Printout

(XXIV)    Ethylamine  analog  of  phencyclidine  (Some  trade  or  other  names:  N-ethyl-1-
phenylcyclohexylamine,  (1-phenylcyclohexyl)  ethylamine,  N-(1-phenylcyclohexl)  ethylamine,
cyclohexamine, PCE.);

(XXV)    Pyrrolidine  analog  of  phencyclidine  (Some  trade  or  other  names:  1-(1-

phenylcyclohexyl)- pyrrolidine, PCPy, PHP.);

(XXVI)    Thiophene  analog  of  phencyclidine  (Some  trade  or  other  names:  1-]1-(2-

thienyl)-cyclohexyl- piperidine, 2-thienyl analog of phencyclidine, TPCP, TCP.);

(XXVII)  TCPy.

Instrument

Schedule I: hallucinogenic substances

Source

https://olls.info/crs/crs2026-title-18.htm

Retrieved

2026-10-31

Fingerprint

a03e73b36c46f56c

(2)   
Unless specifically excepted by Colorado or federal law or Colorado or federal
regulation or more specifically included in another schedule, the following
controlled substances are listed in schedule I:

(c)    Any
material, compound, mixture, or preparation containing any quantity of the
following hallucinogenic substances, including any salts, isomers, and salts of
isomers of them that are theoretically possible within the specific chemical
designation:

(I)   
4-bromo-2, 5-dimethoxy-amphetamine (Some trade or other names: 4-bromo-2,
5-dimethoxy-alpha- methylphenethylamine; 4-bromo-2, 5-DMA.);

(II)   
2,5-dimethoxyamphetamine (Some trade or other names:
2,5-dimethoxy-alpha-methylphenethylamine; 2,5-DMA.);

(II.5)   
2,5-Dimethoxy-4-ethylamphetamine (DOET);

(III)   
4-methoxyamphetamine (Some trade or other names:
4-methoxy-alpha-methylphenethylamine; paramethoxyamphetamine, PMA.);

(IV)   
5-methoxy-3,4-methylenedioxy amphetamine;

(IV.5)   
5-methoxy-N, N-diisopropyltryptamine (5-MeO-DiPT);

(V)   
4-methyl-2,5-dimethoxy-amphetamine (Some trade and other names:
4-methyl-2,5-dimethoxy-alpha- methylphenethylamine; DOM; and STP.);

(VI)   
3,4-methylenedioxy amphetamine;

(VII)   
3,4-methylenedioxymethamphetamine (MDMA); except that
3,4-methylenedioxymethamphetamine (MDMA) does not include a prescription drug
product containing 3,4-methylenedioxymethamphetamine (MDMA) approved by the
federal food and drug administration and placed on a schedule of the federal
“Controlled Substances Act”, 21 U.S.C. sec. 801 et seq., as amended,
other than schedule I, or has been exempted from one or more provisions of such
act, and that is intended for prescribed use and dispensed by a pharmacy or
prescription drug outlet registered by the state of Colorado and only possessed
by a person authorized to possess a controlled substance pursuant to section
18-18-302. Any such drug product containing MDMA that is approved by the
federal food and drug administration must be controlled in Colorado in the same
manner as required by any federal control designation pursuant to the federal
“Controlled Substances Act”, or any exemption from one or more
provisions of that act, and subject to the provisions set forth in part 1 of
article 280 of title 12 and part 3 of this article 18. Nothing in this section
exempts a person from any violation of part 4 of this article 18.

(VIII)   
3,4,5-trimethoxy amphetamine;

(VIII.5)   
Alpha-methyltryptamine (AMT);

(IX)   
Bufotenine (Some trade and other names:
3-(beta-Dimethylaminoethyl)-5-hydroxyindole; 3-(2-
dimethylaminoethyl)-5-indolol; N, N-dimethylserotonin;
5-hydroxy-N,N-dimethyltryptamine; mappine.);

(X)   
Diethyltryptamine (Some trade or other names: N,N-Diethyltryptamine; DET.);

(XI)   
Dimethyltryptamine (Some trade or other names: DMT.);

(XII)   
Ibogaine (Some trade and other names: (7-Ethyl-6,6B,7,8,9,10,12,13-octahydro-2-
methoxy-6,9-methano-5H-pyrido [1', 2':1,2] azepine [5,4- b] indole; Tabernanthe
iboga.);

(XIII)   
Lysergic acid diethylamide;

(XIV)   
Mescaline;

(XV)   
Parahexyl (Some trade or other names:
3-Hexyl-1-hydroxy-7,8,9,10-tetrahydro-6,6,9- trimethyl-6H-dibenzo[b,d]pyran;
Synhexyl.);

(XVI)   
Peyote (Meaning all parts of the plant classified botanically as Lophophora
williamsii Lemaire, whether growing or not, its seeds, any extract from any
part of the plant, and every compound, salt, derivative, mixture, or
preparation of the plant, or its seeds or extracts);

(XVII)   
N-ethyl MDA;

(XVIII)   
N-ethyl-3-piperidyl benzilate;

(XIX)   
N-hydroxy MDA;

(XX)   
N-methyl-3-piperidyl benzilate;

(XXI)   
Psilocybin; except that psilocybin does not include a prescription drug product
containing crystalline polymorph psilocybin approved by the federal food and
drug administration and placed on a schedule of the federal "Controlled
Substances Act", 21 U.S.C. sec. 801 et seq., other than schedule I, or
exempt from one or more provisions of that act, and that is intended for
prescribed use and dispensed by a pharmacy or prescription drug outlet
registered by the state of Colorado and only possessed by a person authorized
to possess a controlled substance pursuant to section 18-18-302. Any
prescription drug product containing crystalline polymorph psilocybin that is
approved by the federal food and drug administration must be controlled in
Colorado in the same manner as required by any federal control designation
pursuant to the federal “Controlled Substances Act”, or any exemption
from one or more provisions of that act; and is subject to the provisions set
forth in part 1 of article 280 of title 12 and part 3 of this article 18.
Nothing in this subsection (2)(c)(XXI) exempts a person from any violation of
part 4 of this article 18.

(XXII)   
Psilocyn;

(XXIII)   
Tetrahydrocannabinols;

(XXIV)   
Ethylamine analog of phencyclidine (Some trade or other names: N-ethyl-1-
phenylcyclohexylamine, (1-phenylcyclohexyl) ethylamine, N-(1-phenylcyclohexl)
ethylamine, cyclohexamine, PCE.);

(XXV)   
Pyrrolidine analog of phencyclidine (Some trade or other names:
1-(1-phenylcyclohexyl)- pyrrolidine, PCPy, PHP.);

(XXVI)   
Thiophene analog of phencyclidine (Some trade or other names:
1-]1-(2-thienyl)-cyclohexyl- piperidine, 2-thienyl analog of phencyclidine,
TPCP, TCP.);

(XXVII)   
TCPy.

Instrument

Schedule I - listed substances and controlled substance analog

Source

https://content.leg.colorado.gov/sites/default/files/images/olls/crs2024-title-18.pdf

Retrieved

2026-10-29

Fingerprint

209c508d3bda502e

(2)    Unless  specifically  excepted  by  Colorado  or  federal  law  or  Colorado  or  federal
regulation or more specifically included in another schedule, the following controlled substances
are listed in schedule I:

(a)    Any  of  the  following  synthetic  opiates,  including  any  isomers,  esters,  ethers,  salts,
and salts of isomers, esters, and ethers of them that are theoretically possible within the specific
chemical designation:

(I)    Acetyl-alpha-methylfentanyl    (N-[1-(1-methyl-2-phenethyl)-4-piperidinyl  ]  -N-

phenylacetamide);

(II)  Acetylmethadol;
(III)  Allylprodine;
(IV)  Alphacetylmethadol;

Colorado Revised Statutes 2024

Page 687 of  783

Uncertified Printout

(V)  Alphameprodine;
(VI)  Alphamethadol;
(VII)

  Alpha-methylfentanyl

(N-[1-(alpha-methyl-beta-phenyl)

ethyl-4-piperidyl]

propionanilide; 1-(1-methyl-2-phenylethyl)- 4-(N-propanilido) piperidine);

(VIII)
phenylpropanamide);

  Alpha-methylthiofentanyl  (N-[1-methyl-2-(2-thienyl)  ethyl-4-piperidinyl]-N-

(IX)  Benzethidine;
(X)  Betacetylmethadol;
(XI)
phenylpropanamide);

  Beta-hydroxyfentanyl

(N-[1-(2-hydroxy-2-phenethyl)-4-

piperidinyl]-N-

(XII)    Beta-hydroxy-3-methylfentanyl  (other  name:  N-[1-(2-hydroxy-2-phenethyl)-3-

methyl-4-piperidinyl-] N-phenylpropanamide);

(XIII)  Betameprodine;
(XIV)  Betamethadol;
(XV)  Betaprodine;
(XVI)  Clonitazene;
(XVII)  Dextromoramide;
(XVIII)  Diampromide;
(XIX)  Diethylthiambutene;
(XX)  Difenoxin;
(XXI)  Dimenoxadol;
(XXII)  Dimepheptanol;
(XXIII)  Dimethylthiambutene;
(XXIV)  Dioxaphetyl butyrate;
(XXV)  Dipipanone;
(XXVI)  Ethylmethylthiambutene;
(XXVII)  Etonitazene;
(XXVIII)  Etoxeridine;
(XXIX)  Furethidine;
(XXX)  Hydroxypethidine;
(XXXI)  Ketobemidone;
(XXXII)  Levomoramide;
(XXXIII)  Levophenacylmorphan;
3-methylfentanyl
(XXXIV)

(N-[3-methyl-1-(2-

phenylethyl)-4-piperidyl]-N-

phenylpropanamide);

(XXXV)

  3-methylthiofentanyl

(N-[3-methyl-1-(2-

thienyl)ethyl-4-piperidinyl]-N-

phenylpropanamide);

(XXXVI)  Morpheridine;
(XXXVII)  MPPP (1-methyl-4-phenyl-4-propionoxypiperidine);
(XXXVIII)  Noracymethadol;
(XXXIX)  Norlevorphanol;
(XL)  Normethadone;
(XLI)  Norpipanone;
(XLII)    Para-fluorofentanyl  (N-(4-fluorophenyl)-N-  [1-(2-phenethyl)  -4-piperidinyl]-

propanamide);

Colorado Revised Statutes 2024

Page 688 of  783

Uncertified Printout

(XLIII)  PEPAP (1-(-2-phenethyl)-4-phenyl- 4-acetoxypiperidine);
(XLIV)  Phenadoxone;
(XLV)  Phenampromide;
(XLVI)  Phenomorphan;
(XLVII)  Phenoperidine;
(XLVIII)  Piritramide;
(XLIX)  Proheptazine;
(L)  Properidine;
(LI)  Propiram;
(LII)  Racemoramide;
(LIII)  Thiofentanyl (N-phenyl-N-[1-(2- thienyl) ethyl-4-piperidinyl]-propanamide);
(LIV)  Tilidine;
(LV)  Trimeperidine.
(b)  Any of the following opium  derivatives,  including their salts,  isomers, and salts  of

isomers of them that are theoretically possible within the specific chemical designation:

(I)  Acetorphine;
(II)  Acetyldihydrocodeine;
(III)  Benzylmorphine;
(IV)  Codeine methylbromide;
(V)  Codeine-N-Oxide;
(VI)  Cyprenorphine;
(VII)  Desomorphine;
(VIII)  Dihydromorphine;
(IX)  Drotebanol;
(X)  Etorphine, except hydrochloride salt;
(XI)  Heroin;
(XII)  Hydromorphinol;
(XIII)  Methyldesorphine;
(XIV)  Methyldihydromorphine;
(XV)  Morphine methylbromide;
(XVI)  Morphine methylsulfonate;
(XVII)  Morphine-N-Oxide;
(XVIII)  Myrophine;
(XIX)  Nicocodeine;
(XX)  Nicomorphine;
(XXI)  Normorphine;
(XXII)  Pholcodine;
(XXIII)  Thebacon.
(c)    Any  material,  compound,  mixture,  or  preparation  containing  any  quantity  of  the
following hallucinogenic substances, including any salts, isomers, and salts of isomers of them
that are theoretically possible within the specific chemical designation:

(I)    4-bromo-2,  5-dimethoxy-amphetamine  (Some  trade  or  other  names:  4-bromo-2,  5-

dimethoxy-alpha- methylphenethylamine; 4-bromo-2, 5-DMA.);

(II)    2,5-dimethoxyamphetamine  (Some  trade  or  other  names:  2,5-dimethoxy-alpha-

methylphenethylamine; 2,5-DMA.);

Colorado Revised Statutes 2024

Page 689 of  783

Uncertified Printout

(II.5)  2,5-Dimethoxy-4-ethylamphetamine (DOET);
(III)

  4-methoxyamphetamine  (Some

trade  or  other  names:  4-methoxy-alpha-

methylphenethylamine; paramethoxyamphetamine, PMA.);
(IV)  5-methoxy-3,4-methylenedioxy amphetamine;
(IV.5)  5-methoxy-N, N-diisopropyltryptamine (5-MeO-DiPT);
(V)  4-methyl-2,5-dimethoxy-amphetamine (Some trade and other names: 4-methyl-2,5-

dimethoxy-alpha- methylphenethylamine; DOM; and STP.);

(VI)  3,4-methylenedioxy amphetamine;
(VII)

that

except

(MDMA);

3,4-methylenedioxymethamphetamine

3,4-
methylenedioxymethamphetamine  (MDMA)  does  not  include  a  prescription  drug  product
containing  3,4-methylenedioxymethamphetamine  (MDMA)  approved  by  the  federal  food  and
drug  administration  and  placed  on  a  schedule  of  the  federal  “Controlled  Substances  Act”,  21
U.S.C.  sec.  801  et  seq., as amended, other than schedule I, or has been exempted from one or
more provisions of such act, and that is intended for prescribed use and dispensed by a pharmacy
or  prescription  drug  outlet  registered  by  the  state  of  Colorado  and  only  possessed  by  a  person
authorized  to  possess  a  controlled  substance  pursuant  to  section  18-18-302.  Any  such  drug
product containing MDMA that is approved by the federal food and drug administration must be
controlled  in  Colorado  in  the  same  manner  as  required  by  any  federal  control  designation
pursuant  to  the  federal  “Controlled  Substances  Act”,  or  any  exemption  from  one  or  more
provisions of that act, and subject to the provisions set forth in part 1 of article 280 of title 12 and
part 3 of this article 18. Nothing in this section exempts a person from any violation of part 4 of
this article 18.

(VIII)  3,4,5-trimethoxy amphetamine;
(VIII.5)  Alpha-methyltryptamine (AMT);
(IX)

  Bufotenine  (Some  trade  and  other  names:  3-(beta-Dimethylaminoethyl)-5-
hydroxyindole;  3-(2-  dimethylaminoethyl)-5-indolol;  N,  N-dimethylserotonin;  5-hydroxy-N,N-
dimethyltryptamine; mappine.);

(X)  Diethyltryptamine (Some trade or other names: N,N-Diethyltryptamine; DET.);
(XI)  Dimethyltryptamine (Some trade or other names: DMT.);
(XII)  Ibogaine (Some trade and other names: (7-Ethyl-6,6B,7,8,9,10,12,13-octahydro-2-

methoxy-6,9-methano-5H-pyrido [1', 2':1,2] azepine [5,4- b] indole; Tabernanthe iboga.);

(XIII)  Lysergic acid diethylamide;
(XIV)  Mescaline;
(XV)    Parahexyl  (Some  trade  or  other  names:  3-Hexyl-1-hydroxy-7,8,9,10-tetrahydro-

6,6,9- trimethyl-6H-dibenzo[b,d]pyran; Synhexyl.);

(XVI)    Peyote  (Meaning  all  parts  of  the  plant  classified  botanically  as  Lophophora
williamsii Lemaire, whether growing or not, its seeds, any extract from any part of the plant, and
every compound, salt, derivative, mixture, or preparation of the plant, or its seeds or extracts);

(XVII)  N-ethyl MDA;
(XVIII)  N-ethyl-3-piperidyl benzilate;
(XIX)  N-hydroxy MDA;
(XX)  N-methyl-3-piperidyl benzilate;
(XXI)  Psilocybin;
(XXII)  Psilocyn;
(XXIII)  Tetrahydrocannabinols;

Colorado Revised Statutes 2024

Page 690 of  783

Uncertified Printout

(XXIV)    Ethylamine  analog  of  phencyclidine  (Some  trade  or  other  names:  N-ethyl-1-
phenylcyclohexylamine,  (1-phenylcyclohexyl)  ethylamine,  N-(1-phenylcyclohexl)  ethylamine,
cyclohexamine, PCE.);

(XXV)    Pyrrolidine  analog  of  phencyclidine  (Some  trade  or  other  names:  1-(1-

phenylcyclohexyl)- pyrrolidine, PCPy, PHP.);

(XXVI)    Thiophene  analog  of  phencyclidine  (Some  trade  or  other  names:  1-]1-(2-

thienyl)-cyclohexyl- piperidine, 2-thienyl analog of phencyclidine, TPCP, TCP.);

(XXVII)  TCPy.
(d)    Any  material,  compound,  mixture,  or  preparation  containing  any  quantity  of  the
following  substances  having  a  depressant  effect  on  the  central  nervous  system,  including  any
salts,  isomers,  and  salts  of  isomers  of  them  that  are  theoretically  possible  within  the  specific
chemical designation:

(I)  Mecloqualone;
(II)  Methaqualone.
(e)    Any  material,  compound,  mixture,  or  preparation  containing  any  quantity  of  the
following  substances  having  a  stimulant  effect  on  the  central  nervous  system,  including  their
salts, isomers, and salts of isomers:

(I)  Repealed.
(II)  Fenethylline;
(III)  Methcathinone;
(IV)  N-ethylamphetamine;
(V)  (+) Cis-4-methylaminorex;
(VI)  N,N-dimethylamphetamine.
(f)  Any material, compound, mixture, or preparation containing any quantity of gamma

hydroxybutyrate [GHB], including its salts, isomers, and salts of isomers.

(g)    Any  material,  compound,  mixture,  or  preparation  which  is  a  controlled  substance
analog,  the  chemical  structure  of  which  is  substantially  similar  to  the  chemical  structure  of  a
controlled substance listed in this subsection (2) or that was specifically designed to produce an
effect  substantially  similar  to  or  greater  than  the  effect  of  a  controlled  substance  listed  in  this
subsection (2), all or part of which is intended for human consumption.

Instrument

Schedule III: subsection (2) in full, ending with (g) ketamine

Source

https://olls.info/crs/crs2026-title-18.htm

Retrieved

2026-10-31

Fingerprint

09c87d9c41ba46b8

(2)   
Unless specifically excepted by Colorado or federal law, or Colorado or federal
regulation, or more specifically included in another schedule, the following
controlled substances are listed in schedule III:

(a)    Any
material, compound, mixture, or preparation containing any quantity of the
following substances having a stimulant effect on the central nervous system,
including any salts, isomers, and salts of isomers of them that are
theoretically possible within the specific chemical designation:

(I)    Any
compound, mixture, or preparation in dosage unit form containing any stimulant
substance included in schedule II and which was listed as an excepted compound
on August 25, 1971, pursuant to the federal "Controlled Substances
Act", and any other drug of the quantative composition shown in that list
for those drugs or which is the same except for containing a lesser quantity of
controlled substances;

(II)   
Benzphetamine;

(III)   
Chlorphentermine;

(IV)   
Clortermine;

(V)   
Phendimetrazine.

(b)    Any
material, compound, mixture, or preparation containing any quantity of the
following substances having a depressant effect on the central nervous system:

(I)    Any
compound, mixture, or preparation containing any of the following drugs or
their salts and one or more other active medicinal ingredients not included in
any schedule:

(A)   
Amobarbital;

(B)   
Secobarbital;

(C)   
Pentobarbital;

(II)   
Any of the following drugs, or their salts, in suppository dosage form,
approved by the federal food and drug administration for marketing only as a
suppository:

(A)   
Amobarbital;

(B)   
Secobarbital;

(C)   
Pentobarbital;

(III)   
Any substance containing any quantity of a derivative of barbituric acid, or
any salt of a derivative of barbituric acid;

(IV)   
Chlorhexadol;

(V)   
Lysergic acid;

(VI)   
Lysergic acid amide;

(VII)   
Methyprylon;

(VIII)   
Sulfondiethylmethane;

(IX)   
Sulfonethylmethane;

(X)   
Sulfonmethane;

(XI)   
Tiletamine and zolazepam or any of their salts (Some trade or other names for a
tiletamine-zolazepam combination product: Telazol. Some trade or other names
for tiletamine: 2-(ethylamino)-2-(2- thienyl)-cyclohexanone. Some trade or
other names for zolazepam:
4-(2-fluorophenyl)-6,8-dihydro-1,3,8-trimethylpyrazolo-[3,4-e]
[1,4]-diazepin-7(1H)-one. flupyrazapon.).

(c)   
Nalorphine;

(d)    Any
material, compound, mixture, or preparation containing any of the following
narcotic drugs, or their salts calculated as the free anhydrous base or
alkaloid, in limited quantities as follows:

(I)    Not
more than 1.8 grams of codeine per 100 milliliters or not more than 90
milligrams per dosage unit, with an equal or greater quantity of an
isoquinoline alkaloid of opium;

(II)   
Not more than 1.8 grams of codeine per 100 milliliters or not more than 90
milligrams per dosage unit, with one or more active, nonnarcotic ingredients in
recognized therapeutic amounts;

(III)   
Not more than 300 milligrams of hydrocodone per 100 milliliters or not more
than 15 milligrams per dosage unit, with a fourfold or greater quantity of an
isoquinoline alkaloid of opium;

(IV)   
Not more than 300 milligrams of hydrocodone per 100 milliliters or not more
than 15 milligrams per dosage unit, with one or more active, nonnarcotic
ingredients in recognized therapeutic amounts;

(V)    Not
more than 1.8 grams of dihydrocodeine per 100 milliliters or not more than 90
milligrams per dosage unit, with one or more active, nonnarcotic ingredients in
recognized therapeutic amounts;

(VI)   
Not more than 300 milligrams of ethylmorphine per 100 milliliters or not more
than 15 milligrams per dosage unit, with one or more active, nonnarcotic
ingredients in recognized therapeutic amounts;

(VII)   
Not more than 500 milligrams of opium per 100 milliliters or per 100 grams, or
not more than 25 milligrams per dosage unit, with one or more active,
nonnarcotic ingredients in recognized therapeutic amounts;

(VIII)   
Not more than 50 milligrams of morphine per 100 milliliters or per 100 grams
with one or more active, nonnarcotic ingredients in recognized therapeutic
amounts.

(e)   
Anabolic steroids.

(f)   
Dronabinol (synthetic) in sesame oil and encapsulated in a soft gelatin capsule
in a federal food and drug administration approved drug product [Other names
for dronabinol: (6aR-trans)-6a,7,8,10a-
tetrahydro-6,6,9-trimethyl-3-pentyl-6H-dibenzo [b,d] pyran-1-o1, or
(-)-delta-9-(trans)-tetrahydrocannabinol];

(g)   
Ketamine, its salts, isomers, and salts of isomers [Other names for ketamine:
(+)-2-(2-chlorophenyl)-2-(methylamino)-cyclohexanone].

Instrument

Salvia divinorum: possession, use, distribution and cultivation offenses

Source

https://olls.info/crs/crs2026-title-18.htm

Retrieved

2026-10-31

Fingerprint

9473501c147fac0b

18-18-406.1. Unlawful use or possession of synthetic cannabinoids or salvia divinorum.
(1)   
Except as provided in section 25-5-427 or article 10 of title 44, it is
unlawful for any person to use or possess any amount of any synthetic
cannabinoid or salvia divinorum.

(2)    A
person who violates any provision of subsection (1) of this section commits a
level 2 drug misdemeanor.

18-18-406.2. Unlawful distribution, manufacturing, dispensing, sale, or cultivation of synthetic cannabinoids or salvia divinorum.
(1)   
Except as provided in section 25-5-427 or article 10 of title 44, it is
unlawful for any person knowingly to:

(a)   
Manufacture, dispense, sell, or distribute, or to possess with intent to
manufacture, dispense, sell, or distribute, any amount of any synthetic
cannabinoid or salvia divinorum;

(b)   
Induce, attempt to induce, or conspire with one or more other persons, to
manufacture, dispense, sell, distribute, or possess with intent to manufacture,
dispense, sell, or distribute, any amount of any synthetic cannabinoid or
salvia divinorum; or

(c)   
Cultivate salvia divinorum with intent to dispense, sell, or distribute any
amount of the salvia divinorum.

(2)    A
person who violates any provision of subsection (1) of this section commits a
level 3 drug felony.

(3)   
Notwithstanding the provisions of subsection (2) of this section, a person who
violates any provision of subsection (1) of this section by dispensing,
selling, or distributing any amount of any synthetic cannabinoid or salvia
divinorum commits a level 2 drug felony if the person:

(a)   
Dispenses, sells, or distributes the synthetic cannabinoid or salvia divinorum
to a minor who is less than eighteen years of age; and

(b)    Is
at least eighteen years of age and at least two years older than said minor.

(4)    As
used in this section, “dispense” does not include labeling, as
defined in section 12-280-103 (23).

Instrument

Natural medicine: personal use and definition

Source

https://olls.info/crs/crs2026-title-18.htm

Retrieved

2026-10-31

Fingerprint

0ce789bcecebb5a0

(5) (a)   
Unless expressly limited by this section, article 170 of title 12, or article
50 of title 44, a person who, for the purpose of personal use and without
remuneration, possesses, consumes, shares, cultivates, or manufactures natural
medicine or natural medicine product, does not violate state law, or county,
municipality, or city and county ordinance, rule, or resolution.

(b)   
Unless expressly limited by this section, a person who performs testing on
natural medicine or natural medicine product, and possesses natural medicine or
natural medicine product in conjunction therewith, for another person who is
twenty-one years of age or older who submits for testing natural medicine or
natural medicine product intended for personal use, does not violate state law,
or county, municipality, or city and county ordinance, rule, or resolution,
article 170 of title 12, or article 50 of title 44, if:

(I)    The
person performing the testing provides written notice to the person submitting
for testing natural medicine or natural medicine product intended for personal
use that the person is not licensed by the state to conduct testing; and

(II)   
The person who submits for testing natural medicine or natural medicine product
provides a signed statement that the natural medicine or natural medicine
product is intended for personal use only.

(c)   
Nothing in this section permits a person to:

(I)   
Dispense, sell, distribute, or possess with intent to dispense, sell, or
distribute natural medicine or natural medicine product to a person under
twenty-one years of age;

(II)   
Dispense, sell, distribute, or possess with intent to dispense, sell, or
distribute, natural medicine or natural medicine product for remuneration,
except as provided by article 170 of title 12 and article 50 of title 44;

(III)   
Manufacture, cultivate, possess, consume, use, dispense, or distribute natural
medicine or natural medicine product, or possess with intent to manufacture,
cultivate, possess, consume, use, dispense, or distribute natural medicine or
natural medicine product for a purpose other than personal use or as provided
by article 170 of title 12 and article 50 of title 44;

(IV)   
Dispense, distribute, or possess with intent to dispense or distribute natural
medicine or natural medicine product as a part of a business promotion or
commercial activity, except as provided by article 170 of title 12 and article
50 of title 44;

(V)   
Dispense, sell, or distribute, or possess with intent to dispense, sell, or
distribute, ibogaine or natural medicine product that contains ibogaine to
another person, except as provided by article 170 of title 12 and article 50 of
title 44;

(VI)   
Advertise bona fide harm reduction services or bona fide support services
offered for remuneration except as provided for in subsection (12)(d) of this
section;

(VII)    Advertise
natural medicine or natural medicine product; or

(VIII)   
Use harm reduction services or support services to conduct sales of natural
medicine. Prohibited sales activities related to harm reduction services or
support services include but are not limited to:

(A)   
Operating a retail store, vendor table, vendor booth, or other commercial
business that dispenses for remuneration any amount of natural medicine or
natural medicine product not intended for consumption under supervision by the
natural person or entity that dispenses the natural medicine or natural
medicine product;

(B)   
Sales of services or items that include the transfer of natural medicine, which
does not preclude remuneration for bona fide harm reduction services or bona
fide support services;

(C)   
Paying recurring fees to acquire natural medicine or natural medicine products;
and

(D)   
Online sales that include natural medicine or natural medicine products.

(d)    A
peace officer shall not arrest a person, and a district attorney shall not
charge or prosecute a person, for a criminal offense involving natural medicine
or natural medicine product pursuant to this part 4, except as expressly
provided in this section.

(e)   
Notwithstanding any provision of this section to the contrary, a peace officer
may arrest a person, or a district attorney may charge or prosecute a person,
for a criminal offense that is not expressly lawful pursuant to this section or
article 170 of title 12 and article 50 of title 44.

(b) (I)   
"Natural medicine" means the following substances:

(A)   
Dimethyltryptamine;

(B)   
Mescaline;

(C)   
Ibogaine;

(D)   
Psilocybin; or

(E)   
Psilocin.

(II)   
"Natural medicine" does not mean a synthetic or synthetic analog of
the substances listed in this subsection (12)(b), including a derivative of a
naturally occurring compound of natural medicine that is produced using
chemical synthesis, chemical modification, or chemical conversion.

(III)   
Notwithstanding subsection (12)(b)(I) of this section, “mescaline”
does not include peyote, meaning all parts of the plant classified botanically
as lophophora williamsii lemaire, whether growing or not; its seeds; any
extract from any part of the plant, and every compound, salt, derivative,
mixture, or preparation of the plant; or its seeds or extracts.

Instrument

Schedule I - in-schedule controlled substance analog

Source

https://leg.colorado.gov/sites/default/files/images/olls/crs2024-title-18.pdf

Retrieved

2026-07-20

Fingerprint

145428adb15e2af0

Any material, compound, mixture, or preparation which is a controlled substance analog, the chemical structure of which is substantially similar to the chemical structure of a controlled substance listed in this subsection (2) or that was specifically designed to produce an effect substantially similar to or greater than the effect of a controlled substance listed in this subsection (2), all or part of which is intended for human consumption.