# 8 CCR 1202-4: FERTILIZERS AND SOIL CONDITIONERS

> Colorado · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_4

## Section

- **Citation:** 8 CCR 1202-4
- **Heading:** FERTILIZERS AND SOIL CONDITIONERS
- **Jurisdiction:** Colorado
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Code of Colorado Regulations / 1200 Department of Agriculture / 1202 Inspection and Consumer Services Division / 8 CCR 1202-4

## Text

1
DEPARTMENT OF AGRICULTURE
Inspection and Consumer Services Division
FERTILIZERS AND SOIL CONDITIONERS
8 CCR 1202-4
[Editor’s Notes follow the text of the rules at the end of this CCR Document.]
_________________________________________________________________________
Part 1. LEGAL AUTHORITY
1.1
Title 35, Article 12, Colorado Revised Statutes.
Part 2. DEFINITIONS
2.1
The Official Publication of the Association of American Plant Food Control Officials, Inc. shall
mean the 2022 Official Publication of the Association of American Plant Food Control Officials,
Inc. (“AAPFCO”), effective January 1, 2022. This Rule incorporates by reference the AAPFCO
standards and guidelines. The Rule does not adopt any later amendments to, or editions of, the
AAPFCO standards and guidelines. A copy of the Official Publication of the Association of
American Plant Food Control Officials, Inc. shall be kept In the Department of Agriculture, located
at 305 Interlocken Parkway, Broomfield Colorado 80021, and shall be open to public inspection,
and available for copying, during normal business hours. A copy of the official publication shall
also be available online at: http://www.aapfco.org/. This, and any other material that is
incorporated by reference, may be examined at any state publications depository library.
2.2
These Rules incorporate the official terms and official fertilizer definitions as published in the 2022
Official Publication of the Association of American Plant Food Control Officials, Inc. (AAPFCO), ,
except as the Commissioner of Agriculture (“Commissioner”) designates otherwise in specific
cases.
2.3
“Soil conditioner” means a substance or a mixture of substances intended to improve the
chemical, physical, biochemical, or biological characteristics of the soil for the purpose of growing
plants. “Soil conditioner” is synonymous with “soil amendment.” It does not include commercial
fertilizers, plant amendments, untreated manures, compost and treated manures that are
distributed without soil conditioner labeling claims
a substance or a mixture of substances intended to improve the
chemical, physical, biochemical, or biological characteristics of the soil for the purpose of growing
plants. “Soil conditioner” is synonymous with “soil amendment.” It does not include commercial
fertilizers, plant amendments, untreated manures, compost and treated manures that are
distributed without soil conditioner labeling claims.
2.4
“Potting Soil” and “Planting Mix” means a material suitable for holding and growing plants in
containers. It may include small amounts of fertilizer or pesticide.
2.5
“Beneficial Substances or Compounds” means any substance or compound, other than primary,
secondary and micro plant nutrients, that can be demonstrated by peer reviewed scientific
research to be beneficial to one or more species or plants, when applied exogenously.
2.6
“Ingredient Statement” means a collective and contiguous listing of the ingredients of which a soil
conditioner or plant amendment is composed listed in descending order by their predominance by
volume or weight as appropriate in non-quantitative terms.

Code of Colorado Regulations
Secretary of State
State of Colorado

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
2
Part 3. REGISTRATION
3.1
Each commercial fertilizer, soil conditioner, or plant amendment product must be registered by
the person whose name appears on the label before being distributed in this state. All
registrations will expire annually on January 31. Applications for renewal of registrations must be
submitted each year on or before that date.
3.2
Each manufacturing facility that produces commercial fertilizer custom mixes in this state must be
registered as required in Section 35-12-104 (7), C.R.S. All registrations will expire annually on
January 31. Applications for renewal of registrations must be submitted each year on or before
such date.
3.3
Each manufacturing facility that produces compost in this state must be registered as required in
Section 35-12-104(8) (a), C.R.S
duces commercial fertilizer custom mixes in this state must be
registered as required in Section 35-12-104 (7), C.R.S. All registrations will expire annually on
January 31. Applications for renewal of registrations must be submitted each year on or before
such date.
3.3
Each manufacturing facility that produces compost in this state must be registered as required in
Section 35-12-104(8) (a), C.R.S. All registrations will expire annually on January 31. Applications
for renewal of registrations must be submitted each year on or before such date.
3.4
Each manufacturing facility in this state that produces compost must register with the
Commissioner except that:
3.4.1
Producers of less than ten (10) tons of compost per calendar year will not be required to
register;
3.4.2
Any facilities regulated under Section 14 of Part 1 of the Colorado Department of Public
Health and Environment Regulations Pertaining to Solid Waste Sites and Facilities, 6
CCR 1007-2, will not be required to register.
3.5
Products whose primary purpose is as potting soil or a planting mix, that may also guarantee
fertilizer, are exempt from registration when the sum of all fertilizer guarantees is below 3%.
Part 4. DISTRIBUTION FEES - REPORTS
4.1
Each registrant must file an affidavit annually with the Commissioner within forty-five (45) days
after January 1 each year that discloses the pounds or tonnage of commercial fertilizer, soil
conditioner, or plant amendment sold or distributed in the state during the preceding twelve (12)
month period.
4.1.1
In addition, each registrant must report the composition of fertilizer and the county in
which fertilizer was distributed by the registrant.
4.2
Such affidavit will be accurately reported and submitted on the form (electronic or otherwise) that
is furnished by the Commissioner.
Part 5. LABEL REQUIREMENTS
5.1
Fertilizer labels
The following information must be displayed on the product label in a readable and conspicuous
form:
5.1.1
Product name
5.1.2
Grade
fertilizer and the county in
which fertilizer was distributed by the registrant.
4.2
Such affidavit will be accurately reported and submitted on the form (electronic or otherwise) that
is furnished by the Commissioner.
Part 5. LABEL REQUIREMENTS
5.1
Fertilizer labels
The following information must be displayed on the product label in a readable and conspicuous
form:
5.1.1
Product name
5.1.2
Grade

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
3
5.1.3
Guaranteed Analysis in the following format and order:
Guaranteed Analysis
Total Nitrogen (N) _____%
_____% Ammoniacal Nitrogen**
_____% Nitrate Nitrogen**
_____% Water Insoluble Nitrogen*
_____% Urea Nitrogen**
_____% (other recognized and determinable forms of Nitrogen)**
5.1.4
Available Phosphate (P2O5) _____%
5.1.5
Soluble Potash (K2O) _____%
5.1.6
(Other nutrients, elemental basis)_____%***
5.1.7
Directions for use sufficient to ensure the safe and effective use of the product that, at a
minimum, specify:
5.1.7.1 The recommended application method(s) and rate(s)
5.1.7.2 Any warning or caution statements necessary to avoid harm to the target
plant(s), or other plants or animals
5.1.8
Net weight or mass, net volume of liquid or dry material, or count.
5.1.9
The date of manufacture, processing, packaging or repackaging or a code that permits
the determination of the date; or if bulk, the shipment or delivery date.
5.1.10 The name and address of the registrant.
*If claimed or the statement “organic” or “slow acting nitrogen” or similar terms are used on the label
**If claimed.
***As prescribed by Rule 5.2
5.2
Plant Nutrients in addition to Nitrogen, Phosphorous, and Potassium
5.2.1
Other plant nutrients, when mentioned in any form or manner, must be guaranteed only
on an available elemental basis. Sources of the elements guaranteed and proof of
availability must be provided to the Commissioner upon request
g nitrogen” or similar terms are used on the label
**If claimed.
***As prescribed by Rule 5.2
5.2
Plant Nutrients in addition to Nitrogen, Phosphorous, and Potassium
5.2.1
Other plant nutrients, when mentioned in any form or manner, must be guaranteed only
on an available elemental basis. Sources of the elements guaranteed and proof of
availability must be provided to the Commissioner upon request. Except guarantees for
those water soluble nutrients labeled for ready to use foliar fertilizers, ready to use
specialty liquid fertilizers, hydroponic or continuous liquid feed programs and guarantees
for potting soils, the minimum percentages that will be accepted for registration are as
follows:

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
4

Element
Minimum %
Calcium (Ca)
1.00
Magnesium (Mg)
0.50
Sulfur (S)
1.00
Boron (B)
0.02
Chlorine (Cl)
0.10
Cobalt (co)
0.0005
Copper (Cu)
0.05
Iron (Fe)
0.10
Manganese (Mn)
0.05
Molybdenum (Mo)
0.0005
Nickel (Ni)
0.0010
Sodium (Na)
0.10
Zinc (Zn)
0.05
Any of the above-listed elements which are guaranteed must appear in the order listed,
immediately following guarantees for the primary nutrients, nitrogen, phosphorous and potassium.
5.2.2
Guarantees or claims for the above-listed plant nutrients are the only ones which will be
accepted except that fertilizer guarantees may include other nutrients, recognized by
AAPFCO. Proposed labels and directions for use of the fertilizer must be furnished with
the application for registration upon request.
5.3
Slowly Released Plant Nutrients
5.3.1
No fertilizer label shall bear a statement that connotes or implies that certain plant
nutrients contained in a fertilizer are released slowly over a period of time, unless the
slow release components are identified and guaranteed at a level of at least 15% of the
total guarantee for that nutrient(s)
shed with
the application for registration upon request.
5.3
Slowly Released Plant Nutrients
5.3.1
No fertilizer label shall bear a statement that connotes or implies that certain plant
nutrients contained in a fertilizer are released slowly over a period of time, unless the
slow release components are identified and guaranteed at a level of at least 15% of the
total guarantee for that nutrient(s).
5.3.2
Types of products recognized by the Commissioner to have slow release properties
include, but are not limited to, (1) water insoluble products, such as natural organics, urea
form materials, urea-formaldehyde products, isobutylidene diurea, and oxamide; (2)
coated slow release products, such as sulfur coated urea and other encapsulated soluble
fertilizers; (3) occluded slow release products in which fertilizers or fertilizer materials are
mixed with waxes, resins, or other inert materials and formed into particles; and (4)
products containing water soluble nitrogen such as ureaform materials, urea-
formaldehyde products, methylenediurea (MDU), dimethylenetriurea (DMTU), and
dicyanodiamide (DCD).
5.3.3
The term, “water insoluble”, “coated slow release”, “slow release”, “controlled release”,
“slowly available water soluble” and “occluded slow release” are accepted as descriptive
of these products, provided the manufacturer can demonstrate a testing program to
substantiate the claim that is acceptable to the Commissioner.
5.3.4
A laboratory procedure, acceptable to the Commissioner for evaluating the release
characteristics of the product(s) must be provided by the manufacturer if requested by the
Commissioner.
5.4
Soil Conditioner and Plant Amendment Labels
The following information must be displayed on the product label in a readable and conspicuous
form:
tantiate the claim that is acceptable to the Commissioner.
5.3.4
A laboratory procedure, acceptable to the Commissioner for evaluating the release
characteristics of the product(s) must be provided by the manufacturer if requested by the
Commissioner.
5.4
Soil Conditioner and Plant Amendment Labels
The following information must be displayed on the product label in a readable and conspicuous
form:

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
5
5.4.1
Net Weight or mass, net volume of liquid or dry material, or count.
5.4.2
Product Name.
5.4.3
Ingredient Statement including the name of each ingredient identified by the name
published in the 2022 Official Publication of the Association of American Plant Food
Control Officials, Inc., incorporated herein by reference as above in Rule 2.1 (later
amendments not included). If no AAPFCO name exists, the common or usual name shall
be used.
5.4.4
Purpose of product.
5.4.5
Directions for use sufficient to ensure the safe and effective use of the product that, at a
minimum, specify:
5.4.5.1 The recommended application method(s) and rate(s).
5.4.5.2 Any warning or caution statements necessary to avoid harm to the target plants
(if applicable), or other plants or animals.
5.4.6
Name and address of the registrant.
5.4.7
The date of manufacture, processing, packaging or repackaging or a code that permits
the determination of the date; or if bulk, the shipment or delivery date.
5.5
Compost Labels
5.5.1
The following information shall be displayed on the product label in a readable and
conspicuous form:
5.5.1.1 Product name.
5.5.1.2 Directions for use sufficient to ensure the safe and effective use of the product
that at minimum specify:
5.5.1.2.1
The recommended application method(s) and rate(s); and
5.5.1.2.2
Any warning or caution statements necessary to avoid harm to
the target plants (if applicable), or other plants or animals.
5.5.1.3 Name and address of the manufacturer or distributor.
5.5.1.4 Net weight or volume
.1.2 Directions for use sufficient to ensure the safe and effective use of the product
that at minimum specify:
5.5.1.2.1
The recommended application method(s) and rate(s); and
5.5.1.2.2
Any warning or caution statements necessary to avoid harm to
the target plants (if applicable), or other plants or animals.
5.5.1.3 Name and address of the manufacturer or distributor.
5.5.1.4 Net weight or volume.
5.5.2
Compost distributed in bulk must be accompanied by a printed or written statement
showing the ph level & soluble salt level in addition to the information required above.
5.5.3
Any product labeled as compost must meet the following minimum standards:
5.5.3.1 The product must contain carbon and nitrogen in a ratio of less than or equal to
18, as determined by the method specified in Rule 6.2.5.5.3.2
The product
must have a SOLVITA Ammonia Test result of greater than or equal to 4, as
determined by the method specified in Rule 6.2.

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
6
5.5.3.3 The product must have a SOLVITA Carbon Dioxide test result of greater than or
equal to 5, as determined by the method specified in Rule 6.2.
5.6
Beneficial Substances or compounds
5.6.1
When claimed or advertised, beneficial substances or compounds must be guaranteed
on the product label under the heading ‘Contains Beneficial Substances’ or ‘Contains
Beneficial Compounds’, or ‘Contains non-plant food ingredients’.
5.6.2
The amount of the beneficial substance or compound shall be guaranteed by the weight
of the substance or compound as a percentage of the net weight of the product.
5.7
Microbes
5.7.1.
When claimed or advertised, a product which contains the presence of microbes must
guarantee the microbes as a minimum number of each claimed viable organism at the
genus and species level in colony forming units (CFU), spores, or propagules per gram or
milliliter, and must have an expiration date and must have storage and handling
instructions
of the net weight of the product.
5.7
Microbes
5.7.1.
When claimed or advertised, a product which contains the presence of microbes must
guarantee the microbes as a minimum number of each claimed viable organism at the
genus and species level in colony forming units (CFU), spores, or propagules per gram or
milliliter, and must have an expiration date and must have storage and handling
instructions.
5.8
Any products coming under the fertilizer law must not carry labels to emphasize that dilutions will
make so many gallons of fertilizer. Specific claims, such as “contents of this package will make
___ gallons of fertilizer” are prohibited.
Part 6 Analytical and Sampling Methods
6.1
The methods of sampling for fertilizers, soil conditioners and plant amendments shall be those set
forth in the 20th Edition of the Official Methods of Analysis of the Association of Analytical
Communities (AOAC) International, or such other methods adopted by the Commissioner from
authoritative sources that the Commissioner deems reliable including but not limited to Colorado
State University. This Rule incorporates by reference the AOAC methods of analysis, 20th
edition. This Rule does not adopt any later amendments to, or editions of, the AOAC methods of
analysis. A copy of the 20th edition of the AOAC shall be kept on file at the Department of
Agriculture, located at 305 Interlocken Parkway, Broomfield Colorado 80021, and shall be open to
public inspection, and available for copying, during normal business hours. A copy of the official
publication shall also be kept at AOAC International, located at 2275 Research Blvd., suite 300,
Rockville Maryland 20850 and is available online at: AOAC.org. This, and any other material that
is incorporated by reference, may be examined at any state publications depository library.
6.2
The methods for sampling and analysis of compost shall be those specified in Test Methods for
the Examination of Composting and Compost, U. S
at AOAC International, located at 2275 Research Blvd., suite 300,
Rockville Maryland 20850 and is available online at: AOAC.org. This, and any other material that
is incorporated by reference, may be examined at any state publications depository library.
6.2
The methods for sampling and analysis of compost shall be those specified in Test Methods for
the Examination of Composting and Compost, U. S. Composting Council Research and
Education Foundation (CCREF), and United States Department of Agriculture (USDA) (TMECC,
2002) or such other methods adopted by the Commissioner from authoritative sources that the
Commissioner deems reliable, including but not limited to Colorado State University. The Test
Methods for the Examination of Composting and Compost, U.S. Composting Council Research
and Education Foundation (CCREF), and United States Department of Agriculture (USDA)
(TMECC, 2002) is herein incorporated by reference. It does not include later amendments or
editions of the publication. A copy of the 2002 edition of the TMECC shall be kept on file at the
Department of Agriculture, located at 305 Interlocken Parkway, Broomfield Colorado 80021, and
shall be open to public inspection, and available for copying, during normal business hours. A
copy of the official publication shall also be kept with the U.S. Composting Council, located at
1053 East Whitaker Mill Road, Suite 115, Raleigh North Carolina 27604, and is available online
at: compostingcouncil.org. This, and any other material that is incorporated by reference, may be
examined at any state publications depository library.

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
7
6.3
Investigational Allowances
6.3.1
A commercial fertilizer shall be deemed deficient if the analysis of any nutrient is below
the guarantee percent by an amount exceeding the applicable value specified in the
following schedule, or if the index value of the fertilizer is below 98%:
ications depository library.

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
7
6.3
Investigational Allowances
6.3.1
A commercial fertilizer shall be deemed deficient if the analysis of any nutrient is below
the guarantee percent by an amount exceeding the applicable value specified in the
following schedule, or if the index value of the fertilizer is below 98%:

Guarantee
percent
Nitrogen
percent
Available
Phosphate
percent
Soluble
Potash
percent
4 or less
0.49
0.67
0.41
5
0.51
0.67
0.43
6
0.52
0.67
0.47
7
0.54
0.68
0.53
8
0.55
0.68
0.60
9
0.57
0.68
0.65
10
0.58
0.69
0.70
12
0.61
0.69
0.79
14
0.63
0.70
0.87
16
0.67
0.70
0.94
18
0.70
0.71
1.01
20
0.73
0.72
1.08
22
0.75
0.72
1.15
24
0.78
0.73
1.21
26
0.81
0.73
1.27
28
0.83
0.74
1.33
30
0.86
0.75
1.39
32 or more
0.88
0.76
1.44
For guarantees not listed, calculate the appropriate value by Interpolation.

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
8
6.3.2
Other elements shall be deemed deficient if any element is below the guarantee by an amount
exceeding the applicable value specified in the following schedule:

ELEMENT
GUARANTEE
ALLOWABLE
DEFICIENCY
Calcium and Sulfur
1% and up
0.2 units + 5% of
guarantee
Magnesium
0.5% and up
0.2 units + 5% of
guarantee
Boron
.02% to 5%
.003 units + 15% of
guarantee

5.0% and up
Potash Schedule 6.3 (a)
Cobalt and Molybdenum
.0005% to 1.0%
.0001 units + 30% of
guarantee

1.0% to 4.0%
.2 units + 10% of
guarantee

4.1% and up
Potash Schedule 6.3 (a)
Chlorine, Iron & Sodium
0.1% to 4.0%
.005 units + 10% of
guarantee

4.1% and up
Potash Schedule 6.3 (a)
Copper, Manganese, & Zinc
.05% to 4.0%
.005 units + 10% of
guarantee
on
.02% to 5%
.003 units + 15% of
guarantee

5.0% and up
Potash Schedule 6.3 (a)
Cobalt and Molybdenum
.0005% to 1.0%
.0001 units + 30% of
guarantee

1.0% to 4.0%
.2 units + 10% of
guarantee

4.1% and up
Potash Schedule 6.3 (a)
Chlorine, Iron & Sodium
0.1% to 4.0%
.005 units + 10% of
guarantee

4.1% and up
Potash Schedule 6.3 (a)
Copper, Manganese, & Zinc
.05% to 4.0%
.005 units + 10% of
guarantee

4.1% and up
Potash Schedule 6.3 (a)
6.3.3
The above tolerances listed in 6.3.1. and 6.3.2 are for single samples run in duplicate.
Part 7.0
ADULTERATION
7.1
Fertilizer
7.1.1
Any product distributed as a fertilizer that contains guaranteed amounts of phosphates
and/or micronutrients shall be deemed adulterated if it contains one or more metals in
amounts greater than the levels of metals established by the following table:
Metals
ppm per 1% P2O5
ppm per 1% Micronutrients1
1. Arsenic
13
112
2. Cadmium
10
83
3. Cobalt
1362
22282
4. Lead
61
463
5. Mercury
1
6
6. Molybdenum
42
3002
7. Nickel
250
1,900
8. Selenium
26
180
9. Zinc
420
2,9002
1 Micro-nutrients include secondary and micro plant nutrients. Secondary plant nutrients are calcium, magnesium, and sulfur. Micro
plant nutrients are boron, chlorine, cobalt, copper, iron, manganese, molybdenum, nickel, sodium, and zinc.
2 Only applies when not guaranteed.
7.1.2
To use the above table:
7.1.2.1 First:

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
9
7.1.2.1.1
For fertilizers with a phosphate guarantee but no micro-nutrient
guarantee, multiply the percent guaranteed P2O5 in the product by the
values in the table to obtain the maximum allowable concentration of
each metal. The minimum value for P2O5 utilized as a multiplier shall be
6.0.
7.1.2.1.2
For fertilizers with one or more micro-nutrient guarantees but no
phosphate guarantee, multiply the sum of the guaranteed percentages of
all micro-nutrients in the product by the value in the appropriate column
in the Table to obtain the maximum allowable concentration (ppm) of
each metal
wable concentration of
each metal. The minimum value for P2O5 utilized as a multiplier shall be
6.0.
7.1.2.1.2
For fertilizers with one or more micro-nutrient guarantees but no
phosphate guarantee, multiply the sum of the guaranteed percentages of
all micro-nutrients in the product by the value in the appropriate column
in the Table to obtain the maximum allowable concentration (ppm) of
each metal. The minimum value for micro-nutrients utilized as a multiplier
shall be 1.
7.1.2.1.3
For fertilizers with both a phosphate and a micro-nutrient
guarantee, multiply the guaranteed percent P2O5 by the value in the
appropriate column. The minimum value for P2O5 utilized as a multiplier
shall be 6.0.
7.1.2.2 Then multiply the sum of the guaranteed percentages of the micro-nutrients by
the value in the appropriate column. The minimum value for micro-nutrients
utilized as a multiplier shall be 1.
7.1.2.3 Utilize the higher of the two resulting values as the maximum allowable
concentration (ppm) of each metal.
7.2
Compost
7.2.1
Any product labeled and distributed as compost will be deemed adulterated if it contains
one or more metals in amounts greater than the levels of metals established by the
following table:

Metals
Maximum level mg/kg
dry weight basis
Arsenic
41
Cadmium
39
Copper
1500
Lead
300
Mercury
17
Nickel
420
Selenium
100
Zinc
2800
7.2.2
Any product labeled and distributed as compost will be deemed adulterated if it contains
a pathogen concentration greater than either of the following levels:
7.2.2.1 Fecal coliform in an amount greater than 1000 most probable number per gram
of total solids (dry weight basis); or
7.2.2.2 Salmonella sp. bacteria in an amount greater than three (3) most probable
number per four (4) grams of total solids (dry weight basis).
istributed as compost will be deemed adulterated if it contains
a pathogen concentration greater than either of the following levels:
7.2.2.1 Fecal coliform in an amount greater than 1000 most probable number per gram
of total solids (dry weight basis); or
7.2.2.2 Salmonella sp. bacteria in an amount greater than three (3) most probable
number per four (4) grams of total solids (dry weight basis).

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
10
Part 8. Reserved
Part 9. STATEMENTS OF BASIS, SPECIFIC STATUTORY AUTHORITY AND PURPOSE
The Statements of Basis, Specific Statutory Authority and Purpose for rulemaking activity
from 1971 to 1984 are no longer in the Department’s files.
9.1
October 9, 2008 – Effective November 30, 2008
STATUTORY AUTHORITY:
The Commissioner of Agriculture, Colorado Department of Agriculture, adopts these permanent rules
pursuant to the provisions and requirements of the Colorado Commercial Fertilizer, Soil Conditioner and
Plant Amendment Act, Section 35-12-114, C. R. S.
PURPOSE:
The purpose of these Rules is to comply with the requirements of the Colorado Commercial Fertilizer, Soil
Conditioner and Plant Amendment Act to provide specific guidelines for the manufacture, labeling, and
distribution of commercial fertilizers, soil conditioners, plant amendments, and compost.
These rules:
-
Adopt the most current version of the official terms as published in the 2008 Official
Publication of the Association of American Plant Food Control Officials (AAPFCO).
-
Establish registration dates for commercial fertilizer, soil conditioner, and plant
amendment products.
-
Establish registration dates for fertilizer and compost manufacturers.
-
Establish the due date for distribution (tonnage) reports.
-
Establish minimum standards and labeling requirements for compost.
-
Establish directions for use requirements for fertilizer products.
-
Remove all references to agricultural liming materials
commercial fertilizer, soil conditioner, and plant
amendment products.
-
Establish registration dates for fertilizer and compost manufacturers.
-
Establish the due date for distribution (tonnage) reports.
-
Establish minimum standards and labeling requirements for compost.
-
Establish directions for use requirements for fertilizer products.
-
Remove all references to agricultural liming materials. These references were originally
incorporated into these Rules because they are included in the AAPFCO Model Rules
and Regulations. Due to the alkaline nature of Colorado soils, lime is not used; therefore,
regulations that pertain to these materials are not needed.
-
Establish the level of concentration of certain metals that would deem fertilizer to be
adulterated.
-
Establish the level of concentration of certain metals and pathogens that would deem
compost to be adulterated.
-
Update sampling and laboratory analysis methods for fertilizers and soil conditioners.
-
Establish the laboratory analysis method for iron sucrate.
-
Establish sampling and laboratory analysis methods for compost.
-
Update rules and remove outdated language.

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
11
FACTUAL AND POLICY ISSUES:
The factual and policy issues encountered in the proposal of these permanent Rules are as follows:
1.
On August 6, 2008, The Colorado Commercial Fertilizer, Soil Conditioner, and Plant Amendment
Act was amended by House Bill 08-1231.
a.
HB 08-1231 requires the Department to set minimum standards for compost produced by
those facilities that are not regulated by Colorado Department of Public Health and
Environment (CDPHE).
b.
The Department worked with compost industry stakeholders, CDPHE, and Colorado
State University to develop compost minimum standards.
2.
These new, revised rules are based upon national standard (model) regulations developed by
AAPFCO, an organization comprised of state fertilizer regulatory officials
ilities that are not regulated by Colorado Department of Public Health and
Environment (CDPHE).
b.
The Department worked with compost industry stakeholders, CDPHE, and Colorado
State University to develop compost minimum standards.
2.
These new, revised rules are based upon national standard (model) regulations developed by
AAPFCO, an organization comprised of state fertilizer regulatory officials. These rules promote
standardization of fertilizer industry regulation amongst the states.
3.
The Department met with fertilizer industry groups throughout the rule drafting process. The
industry groups have indicated support for these Rules.
9.2
January 13, 2009 – Effective March 2, 2009
STATUTORY AUTHORITY:
The Commissioner of Agriculture, Colorado Department of Agriculture, adopts these permanent rules
pursuant to the provisions and requirements of the Colorado Commercial Fertilizer, Soil Conditioner and
Plant Amendment Act, 35-12-114, C.R.S.
PURPOSE:
The purpose of these rules is to add additional labeling requirements to fertilizer and soil conditioning
labeling guidelines.
FACTUAL AND POLICY ISSUES:
The factual and policy issues encountered in the proposal of these permanent rules are as follows:
1.
Upon review of the recent amendments to these rules, filed with the Secretary of State on
October 16, 2008, the Office of Legislative Legal Services (OLLS) requested additions to Rule 5.1
to conform labeling requirements for fertilizer products with those in section 35-12-105(1), C.R.S.
2.
In addition to the changes requested by OLLS, the Department will add similar language to Rule
5.4 to conform labeling requirements for soil conditioners and plant amendments to those in
section 35-12-105(3), C.R.S.
9.3
November 13, 2012 – Effective December 30, 2012
STATUTORY AUTHORITY:
The Commissioner of Agriculture is authorized to adopt these permanent rules pursuant to section 35-12-
114, C.R.S., of the Colorado Commercial Fertilizer, Soil Conditioner and Plant Amendment Act.
to Rule
5.4 to conform labeling requirements for soil conditioners and plant amendments to those in
section 35-12-105(3), C.R.S.
9.3
November 13, 2012 – Effective December 30, 2012
STATUTORY AUTHORITY:
The Commissioner of Agriculture is authorized to adopt these permanent rules pursuant to section 35-12-
114, C.R.S., of the Colorado Commercial Fertilizer, Soil Conditioner and Plant Amendment Act.

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
12
PURPOSE:
The specific purposes of these rule changes are as follows:
1.
Amend rule 2.1 to adopt the most current version of the official terms as published in the Official
Publication of the Association of American Plant Food Control Officials (AAPFCO) and update the
rule language to reflect the most current version of the statutory requirements for incorporating
such information by reference.
2.
Add a new rule 2.2 to define “index value.”
3.
Add a new rule 2.3 to define “soil conditioner.”
4.
Amend rule 3.5 to remove restrictions on the use of iron sucrate as a source.
5.
Amend rule 5.2 (a) to change the requirements for minimum nutrient guarantees for specialty
fertilizers.
6.
Amend rule 5.2 (b) to remove restrictions on testing requirements for minor nutrients and allow
the use of iron oxide and similar sources.
7.
Amend rule 6.1 to separate sampling and analytical methods for clarity and update the rule
language to reflect the most current version of the statutory requirements for incorporating such
information by reference.
8.
Add a new rule 6.2 to:
a.
Provide more flexibility on fertilizer test methods and nutrient sources, and
b.
Require internet posting of all official test methods.
9.
Amend existing rule 6.2 to:
A.
Provide more flexibility on compost test methods, and
B.
Require internet posting of all official test methods.
10.
Delete existing rule 6.3(c) to remove the reference to section 35-14-110 C.R.S., which no longer
exists.
11.
Amend rules 5.4(c), 6.3(a) and 6.3(b) for accuracy
ethods and nutrient sources, and
b.
Require internet posting of all official test methods.
9.
Amend existing rule 6.2 to:
A.
Provide more flexibility on compost test methods, and
B.
Require internet posting of all official test methods.
10.
Delete existing rule 6.3(c) to remove the reference to section 35-14-110 C.R.S., which no longer
exists.
11.
Amend rules 5.4(c), 6.3(a) and 6.3(b) for accuracy.
FACTUAL AND POLICY ISSUES:
The Department has been in contact with industry groups and interested parties throughout the rule
drafting process. All have indicated support for the proposed changes.
The factual and policy issues encountered in the proposal of these permanent rules are as follows:
1.
Rule 2.1 of the prior revision incorporated terms listed in the 2008 Official Publication of
AAPFCO, which is updated annually. This revision updates the terms to the current 2012
publication. AAPFCO is an organization comprised of state fertilizer regulatory officials that
develops national models to promote standardization of fertilizer industry regulation amongst the
states.

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
13
2.
“Index value” is used in existing rule 6.3(a) to determine whether a fertilizer is deficient. It was not
previously defined, except indirectly in 6.3 (c), which is being deleted.
3.
A definition of “soil conditioner” is required by section 35-12-103(29), C.R.S., of the Commercial
Fertilizer, Soil Conditioner, and Plant Amendment Act. “Soil amendment” is a generally used, but
less descriptive term synonymous with “soil conditioner.”
4.
A simplified regulatory approach towards fertilizer nutrient sources and analytical testing is
adopted with these revisions. The use of iron sucrate is no longer restricted to specialty fertilizers.
5.
Removing the requirements for minimum nutrient guarantees for specialty fertilizers changes the
rule to reflect the national models developed by AAPFCO.
6.
This revision simplifies the regulatory approach for minor nutrients
proach towards fertilizer nutrient sources and analytical testing is
adopted with these revisions. The use of iron sucrate is no longer restricted to specialty fertilizers.
5.
Removing the requirements for minimum nutrient guarantees for specialty fertilizers changes the
rule to reflect the national models developed by AAPFCO.
6.
This revision simplifies the regulatory approach for minor nutrients. Regulation will now reflect
AAPFCO national models.
7.
Amended rule 6.1 clarifies the regulatory approach for sampling.
8.
New rule 6.2 simplifies the regulatory approach towards fertilizer analytical testing and nutrient
sources.
a.
Rule 6.1 of the prior revision required specific test methods for minor nutrients and
nutrient sources such as iron oxide and resulted in restrictions on the use of such
sources. This revision removes the restrictions and updates test and nutrient source
requirements.
b.
Transparency in government is promoted with the requirement to post all current test
methods on the internet.
9.
Amended rule 6.3 simplifies the regulatory approach towards compost sampling and analytical
testing.
a.
This change allows the Department to respond more quickly to technological changes in
analytical test methods.
b.
Transparency in government is promoted with the new requirement to post all test
methods on the internet.
10.
Deleting previous revision rule 6.3(c):
a.
Removes a reference to section 35-12-110, C.R.S., which no longer exists.
b.
Allows for a clear definition of “Index value” which is used in rule 6.3(a) to determine
whether a fertilizer is deficient. Index value was not previously defined, except indirectly
in 6.3 (c), which is being deleted.
11.
Minor textual errors were identified which are addressed in this rule revision.
9.4
April 9, 2013 – Effective January 1, 2014
STATUTORY AUTHORITY:
The Commissioner's authority for the adoption of these permanent rule amendments is set forth in § 35-
12-104(1), § 35-12-104(7) and § 35-1-107(5)(a), C.R.S.
dex value was not previously defined, except indirectly
in 6.3 (c), which is being deleted.
11.
Minor textual errors were identified which are addressed in this rule revision.
9.4
April 9, 2013 – Effective January 1, 2014
STATUTORY AUTHORITY:
The Commissioner's authority for the adoption of these permanent rule amendments is set forth in § 35-
12-104(1), § 35-12-104(7) and § 35-1-107(5)(a), C.R.S.

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
14
PURPOSE:
The purpose of these permanent rule amendments is to amend Part 3.1 to change the expiration date for
a fertilizer registration and amend Part 3.2 to change the expiration date for a fertilizer manufacturing
facility registration from June 30 to December 31.
FACTUAL AND POLICY BASIS:
The factual and policy issues pertaining to the adoption of these permanent rule amendments are as
follows:
1.
This change is necessary to allow the Department to consolidate licensing functions to one time
per year for all licenses issued by the ICS Division.
2.
The Department of Agriculture is moving its licensing functions from a paper based system to an
online system. To accommodate licensee’s who hold multiple licenses with the Department of
Agriculture, we are establishing a common licensing date so a licensee can obtain all their
licenses in one transaction.
9.5
Adopted November 9, 2016- Effective December 30, 2016
STATUTORY AUTHORITY:
The Commissioner's authority for the adoption of these permanent rule amendments is set forth in § 35-
12-104(1), § 35-12-104(7) and § 35-12-106(4), C.R.S.
PURPOSE:
The purpose of these permanent rule amendments is to:
1.
Amend Part 4 to clarify the reporting requirements.
2.
Change the date in Parts 3.1, 3.2, and 3.3 to align the registration renewals with the tonnage
reporting deadline.
3.
Update formatting to be consistent with other Rules within the Department.
FACTUAL AND POLICY BASIS:
The factual and policy issues pertaining to the adoption of these permanent rule amendments are as
follows:
1
dments is to:
1.
Amend Part 4 to clarify the reporting requirements.
2.
Change the date in Parts 3.1, 3.2, and 3.3 to align the registration renewals with the tonnage
reporting deadline.
3.
Update formatting to be consistent with other Rules within the Department.
FACTUAL AND POLICY BASIS:
The factual and policy issues pertaining to the adoption of these permanent rule amendments are as
follows:
1.
The previous version of Part 4 was not specific to the types of data required to be reported on
fertilizer distribution.
2.
Currently, fertilizer registrants have to log into the Department’s licensing system at separate
times of the year to complete the registration and reporting process. This can be burdensome to
registrants and be prone to mistakes.
3.
After consulting with industry stakeholders, the Department has proposed to synchronize all
deadlines associated with the larger registration process to make the process more efficient for
registrants.

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
15
9.6
February 8, 2017 – Effective March 30, 2017
Statutory Authority:
The Commissioner's authority for the adoption of these permanent rule amendments is set forth in § 35-
12-104(1), § 35-12-104(7) and § 35-12-106(4), C.R.S.
Purpose:
The purpose of this rule-making is to incorporate the changes that were effective December 30, 2012
which were inadvertently omitted when the rule was further amended through rules adopted November 9,
2016 to be effective December 30, 2016. See Part 9.3 for the specific changes.
9.7
Adopted November 8, 2017 – Effective December 30, 2017
Statutory Authority
The Commissioner's authority for the adoption of these permanent Rule amendments is set forth in
section 35-12-114, C.R.S. of the Colorado Commercial Fertilizer, Soil Conditioner, and Plant Amendment
Act
nded through rules adopted November 9,
2016 to be effective December 30, 2016. See Part 9.3 for the specific changes.
9.7
Adopted November 8, 2017 – Effective December 30, 2017
Statutory Authority
The Commissioner's authority for the adoption of these permanent Rule amendments is set forth in
section 35-12-114, C.R.S. of the Colorado Commercial Fertilizer, Soil Conditioner, and Plant Amendment
Act.
Purpose
The purpose of this rulemaking is to update terms, definitions and references to match the current version
of the AAPFCO; update registration requirements; expand and update label language; and update
references to the AOAC.
Factual and Policy Issues
The Department has been in contact with industry groups and interested parties throughout the rule
drafting process. The factual and policy issues related to the adoption of these permanent Rule
amendments are as follows:
1.
Rule 2.1 and 2.2 of the prior revision incorporated by reference the 2012 version of the Official
Publication of the Association of the American Plant Food Control Officials (APPFCO) and did not
include the rule language required by the most current version of the statutory requirements for
incorporating such information by reference.
2.
“Potting Soil”; “Planting Mix”; “Beneficial Substances or Compounds”; and “Ingredient Statement”
are official terms in the 2017 Official Publication of AAPFCO.
3.
Rule 3.5 exempts certain products from registration and allows products to be used in a timely
manner. This Rule accounts for the constantly evolving advances in the fertilizer industry and
APPFCO’s inability to publish recognition of ingredients fast enough to keep up with the
advances. This Rule change is in agreement with stakeholder comments.
4.
Rule 5.1.7.1 removes the requirement that a label specify the type of plant for which a product is
intended; this information is not a requirement in the AAPFCO model bill or regulations
ly evolving advances in the fertilizer industry and
APPFCO’s inability to publish recognition of ingredients fast enough to keep up with the
advances. This Rule change is in agreement with stakeholder comments.
4.
Rule 5.1.7.1 removes the requirement that a label specify the type of plant for which a product is
intended; this information is not a requirement in the AAPFCO model bill or regulations. The
amended Rule 5.1.7.1 allows for either a recommended application method and rate or a
statement referring the user to a qualified individual or a nutrient management plan.
5.
Rule 5.3.3 adds the terms “Coated Slow Release,” “Slow Release,” “Controlled Release,” and
“Slowly Available Water Soluble,” which are terms consistent with the 2017 Official Publication of
AAPFCO.

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
16
6.
Rule 5.4.3 removes the requirement that percentages be included on a label. This information is
proprietary and disclosure is not required on labels. This change is in agreement with stakeholder
comments.
7.
Rules 5.4.6.1 and 5.5.1.2.1 are being deleted because they are no longer necessary. Including
the intended types of plants or soils on a label is not a requirement in the AAPFCO model bill or
regulations.
8.
Rule 5.5.1.5 is not necessary. Typical analysis of compost has been an optional label item and
has not been considered a guarantee. The removal of this Rule is in agreement with stakeholder
comments.
9.
The Rule 5.6 label requirements for “Beneficial Substances or Compounds” are consistent with
the 2017 Official Publication of AAPFCO.
10.
The Rule 5.7 label requirements for “Microbes” are consistent with the 2017 Official Publication of
AAPFCO.
11.
Rule 5.8 limits label claims related to dilutions. Products that have directions for dilutions prior to
use should not have a claim that the dilution will make a certain amount of finished product to
avoid misleading advertising and claims. This is consistent with the 2017 Official Publication of
AAPFCO
el requirements for “Microbes” are consistent with the 2017 Official Publication of
AAPFCO.
11.
Rule 5.8 limits label claims related to dilutions. Products that have directions for dilutions prior to
use should not have a claim that the dilution will make a certain amount of finished product to
avoid misleading advertising and claims. This is consistent with the 2017 Official Publication of
AAPFCO.
12.
Rule 6.1 adopts the most current version of the Official Methods of Analysis of The Association of
Analytical Communities (AOAC), and updates the Rule language to reflect the most current
version of the statutory requirements for incorporating such information by reference.
13.
Rule 6.4.4 is no longer necessary because the soil conditioner and plant amendment label
requirement of disclosing the percentage of all active ingredients has been changed with
amendment of Rule 5.4.3 and the deletion of Rule 5.4.4.
9.8
Adopted October 14, 2020 – Effective December 15, 2020
Statutory Authority
The commissioner’s authority for the adoption of these permanent rule amendments is set forth in section
35-12-114, C.R.S. of the Colorado Commercial Fertilizer, Soil Conditioner, and Plant Amendment Act.
Purpose
The purpose of this rulemaking is to update the language required by §24-4-103(12.5), C.R.S., to properly
incorporate the AAPFCO Official Publication, effective January 1, 2017, by reference.
Factual and Policy Issues
Section 24-4-103 (12.5), C.R.S., requires specific language to properly incorporate a publication by
reference. This rulemaking ensures the rules meet those statutory requirements, and updates the current
address for the Inspection and Consumer Services Division within the Department of Agriculture, which
changed in October 2018.
, effective January 1, 2017, by reference.
Factual and Policy Issues
Section 24-4-103 (12.5), C.R.S., requires specific language to properly incorporate a publication by
reference. This rulemaking ensures the rules meet those statutory requirements, and updates the current
address for the Inspection and Consumer Services Division within the Department of Agriculture, which
changed in October 2018.

CODE OF COLORADO REGULATIONS
8 CCR 1202-4
Inspection and Consumer Services Division
17
9.9
Adopted June 8, 2022 – Effective July 30, 2022
Statutory Authority
The Commissioner's authority for the adoption of this permanent Rule amendment is set forth in § 35-12-
114 C.R.S. of the Colorado Commercial Fertilizer, Soil Conditioner, and Plant Amendment Act.
Purpose
The Purpose of this rulemaking is to update the references to the current publication of the Association of
American Plant Food Control Officials (AAPFCO), amend definitions to clarify and become consistent with
the 2022 Official Publication, and to correct minor spelling errors.
Factual and Policy Basis
1.
Numerous changes to the AAPFCO Official publication have occurred since the printing of the
2017 version, which is referenced in the rules. The change to the 2022 version is reflected
throughout the rule. Updating the rule to follow the 2022 AAPFCO Model regulations will make
our rules more consistent with other states’ fertilizer, soil conditioner, and plant amendment rules.
2.
These amendments incorporate changes as a result of the department’s regulatory efficiency
review process.
3.
Delete definition 2.3 “Index value” as obsolete as these values are not used to determine
penalties and because Commercial Value regulations have been deleted by amendment in the
Fertilizer and Soil Conditioners law 35-12-110.
4.
Amend definition 2.4 “Soil Conditioner” to be consistent with that definition in the AAPFCO Official
Publication.
5
department’s regulatory efficiency
review process.
3.
Delete definition 2.3 “Index value” as obsolete as these values are not used to determine
penalties and because Commercial Value regulations have been deleted by amendment in the
Fertilizer and Soil Conditioners law 35-12-110.
4.
Amend definition 2.4 “Soil Conditioner” to be consistent with that definition in the AAPFCO Official
Publication.
5.
Amend Rule 2.5 “Potting Soil” and “Planting Mix” to clarify these substances are intended for use
in containers, and not in the landscape or gardens.

## Nearby sections

- [8 CCR 1202-1 PACKAGING AND LABELING](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_1.md)
- [8 CCR 1202-2 MEASUREMENT STANDARDS](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_2.md)
- [8 CCR 1202-3 RULES AND REGULATIONS REGARDING PROCESSED ANIMAL WASTE PRODUCTS [Repealed eff. 11/30/2017]](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_3.md)
- [8 CCR 1202-4 FERTILIZERS AND SOIL CONDITIONERS](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_4.md)
- [8 CCR 1202-5 STORAGE AND HANDLING OF ANHYDROUS AMMONIA](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_5.md)
- [8 CCR 1202-6 RULES FOR COMMERCIAL FEED UNDER THE COLORADO FEED LAW, SECTIONS 35-60-101 THROUGH 115, C.R.S.](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_6.md)
- [8 CCR 1202-7 RULES FOR PET FOOD UNDER THE COLORADO FEED LAW, SECTIONS 35-60-101 THROUGH 115, C.R.S.](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_7.md)
- [8 CCR 1202-8 IRREVOCABLE LETTERS OF CREDIT IN LIEU OF SURETY BONDS UNDER THE COLORADO FARM PRODUCTS ACT AND THE COLORADO COMMODITY HANDLER ACT [Repealed eff. 07/30/2014]](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_8.md)
- [8 CCR 1202-9 RULES FOR DETERMINING THE AMOUNT OF CIVIL PENALTIES FOR VIOLATION OF THE FARM PRODUCTS ACT AND THE COMMODITY HANDLER ACT [Repealed eff. 12/30/2007]](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_9.md)
- [8 CCR 1202-10 RULES PERTAINING TO THE ADMINISTRATION AND ENFORCEMENT OF THE COLORADO EGG LAW](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_10.md)
- [8 CCR 1202-11 ADMINISTRATION AND ENFORCEMENT OF THE COMMODITY HANDLER AND FARM PRODUCTS ACT, SECTIONS 35-36-101 THROUGH 314, C.R.S.](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_11.md)
- [8 CCR 1202-12 RULES PERTAINING TO THE ADMINISTRATION AND ENFORCEMENT OF THE SALE OF MEAT ACT METHOD OF SALE OF HOME FOOD SERVICE [Repealed eff. 03/30/2019]](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_12.md)
- [8 CCR 1202-13 RULES PERTAINING TO THE ADMINISTRATION AND ENFORCEMENT OF THE CUSTOM PROCESSING OF MEAT ANIMALS ACT](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_13.md)
- [8 CCR 1202-14 METHOD OF SALE OF RETAIL COMMODITIES](https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_14.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_CO_CCR_8_CCR_1202_4. Check the current official text before relying on it. Not legal advice.