ii) 2010 State of Colorado 

All Rights Reserved 

33 CR 22 and 23, 11-10 Page 1 

I. DEFINITIONS, STATEMENT OF INTENT, AND GENERAL PROVISIONS APPLICABLE TO 

ALL EMISSION CONTROL REGULATIONS ADOPTED BY THE COLORADO AIR QUALITY CONTROL COMMISSION 

I.A. Applicability 

Emission control regulations adopted by the Air Quality Control Commission apply throughout Colorado unless otherwise stipulated. The Statement of Intent, Definitions, and General Provisions of this 

regulation apply to all emission control regulations adopted by the Commission unless otherwise stipulated. 

Pursuant to Colorado Revised Statutes Section 24-4-103(12.5), copies of materials incorporated by 

reference arE! available for public inspection during regular business hours, or copies may be obtained at a reasonable cost from the Technical Secretary of the Air Quality Control Commission (the 

Commission), located at 4300 Cherry Creek Drive South, Denver, Colorado 80246-1530, or may be 

examined at the State Publications Depository and Distribution Center. Materials incorporated by reference are those editions in existence as of the date of this regulation as promulgated or revised by 

the Commission and references do not include later amendments to or editions of the incorporated 

materials. 

B. Authority 

Colo o Revised Statutes Section 25-7-109 provides: As promptly as possible, the Commissio 

shall ad t and promulgate, and from time to time modify or repeal emission control regulatio which 

require the e of effective practical air pollution controls.' Colorado Revised Statutes Sec · ns 25-7-

105 through 2 7-110, Section 25-7-114 and Section 25-7-117 are the general statuto uthority for 

adoption by the mission of standards, regulations, and programs. 

l.C. Colorado Air llution Prevention and Control Act: Colorado Rev· 

25-7-102 (Legisla "ye Declaration) 

In order to foster the health, wel e, convenience, and comfort of the · habitants of the state of Colorado and to facilitate the enjoymen nd use of the scenic and nat 

clared to be the policy of this state to ieve the maximum pra cal degree of air purity in every portion of the state, to attain and maintain th ational Ambient 1r Quality Standards, and to prevent the 

significant deterioration of air quality in thos ortions oft 

the National Ambient Air Quality Standards. To ate , it is the purpose of this article to require the 

use of all available practical methods that are tecti ogically feasible and econornicaliy reasonable 

so as to reduce, prevent, and control air pollutlo ro hout the state of Colorado; to require the development of an air quality control program in ich the nefits of the air pollution control measures 

utilized bear a reasonable relationship to t economic, en · onmental, and energy impacts and other 

costs of such measures; and to maintai a cooperative progra between the state and local units of 

government. It is further declared th he prevention, abatement, nd control of air pollution in each 

portion of the state are matters of atewide concern and are affecte with a public interest and that 

the provisions of this article ar nacted in the exercise of the police po ers of this state for the purpose of protecting the healt , peace, safety, and general welfare of the pe le of this state. 

The General Assemb urther recognizes that a current and accurate inventory actual emissions of 

air pollutants from sources is essential for the proper identification and designat1 of attainment 

and nonattainm t areas, the determination of the most cost effective regulatory strat 

pollution, the rgeting of regulatory efforts to achieve the greatest health and environ me I benefits, 

and the a 1evement of a federally approved clean air program. In order to achieve the mos ccurate 

invent of air pollution sources possible, this article specifically provides incentives to achiev e 

. mo accurate and complete inventory possible, and to provide for the most accurate enforcemen 

gram achievable based upon that inventory. 

CODE OF COLORADO REGULATIONS 5 CCR 1001-2 
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Intent 

Toi lement the legislative declaration and other sections of the Act, the Commission declares tha 

it is the tent and purpose of these regulations is to: 

Achieve and maintain levels of air quality that will protect human health an 

event injury to plant and animal life, prevent damage to property, prev unreaso ble interference with the public welfare, preserve visibility, and pr eel scenic, 

aestli ic and historic values of Colorado; 

l.D.2. se of all available practicable methods to reduc , prevent, and control 

air pollution i the protection of the health, safety, and ge ral welfare of the people 

of the state of C rado. In order to achieve air purity co istent with this intent, it 

may be necessary, ltimately to control air pollutant issions to such a degree of 

opacity so that the e · sions are no longer visible· 

l.D.3. 

l.D.4. Prevent odors and other air pollu · 

enjoyment of life; and 

l.D.5. Apply the major resources oft 

ing priority air pollution prob 

I.E. Growth 

air pollution control programs toward solvThe Commission recognizes that e growth in the amount and comple · of air pollution in Colorado 

is brought about by, and incid to, population growth, mobility, increas ffluence, industrial development and changing socia alues in said state. 

The Commission belie s that the air pollution problem is likely to be aggravated a compounded by 

additional populatio growth, mobility, affluence, industrial development, and changin ocial values 

in the future, Iha re likely to result in serious potential danger to the public and the env1 nment. 

Therefore, th ommission intends to pursue solutions, in conjunction with other appropria agencies and in ests that have a direct interest and capability in solving a growing air pollution pr -

lem(s) i elation to the broader environmental degradation problem. It is the intent of the Comm1 ion 

to co inate with industrial, commercial, agricultural, and transportation planning organizations, Ian 

us , and other environmental organizations, the public, the legislature, educational organizations, and 

er major interests in such a manner as to prevent air pollution in Colorado. 

l.F. Abbreviations 

Abbreviations used in the Commission's regulations have the following meaning: 

AQRV 

BACT 

BART 

BTU 

5 CCR 1001-2 

American Society For Testing And Materials 

rofit Technology 

Thermal Unit 

Degree Celsius (Centigrade) 

CODE OF COLORADO REGULATIONS 
Cl 2010 State of Colorado 

All Rights Reserved 

33 CR 22 a nd 23, 11-10 

CdS 

Cfm 

dscm 

dscf 

U.S. EPA 

ERC 

eq 

OF 

FLM 

Fed . Reg. 

FS 

ft 

g 

gr 

hr 

HAP(s) 

HC 

HCI 

Hg 

H20 

H2S 

H2S04 

Calorie 

Chemical Abstract Service 

Code 

Carbon Dioxide 

Carbon Dioxide Equivalent 

Continuous Emission Monitoring 

Continuous Opacity Monitoring 

Colorado Revised Statutes 

Cubic Meter(s) At Standard Conditions 

Generally Available Control Technology 

Gallon(s) 

Greenhouse Gas 

Gram Equivalent 

Good Engineering Practice 

Grain(s) 

Mercury 

Water 

CODE OF COLORADO REGULATIONS 

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5 CCR 1001-2 
Page 4 

lpm 

lb 

LTS 

m 

MACT 

meq 

min 

mg 

ml 

mm 

mol 

mol. wt. 

mV 

N 

NA(s) 

NAAQS 

NESHAP 

Joule 

Degree Kelvin 

Kilogram(s) 

Lowest Achievable Emission Rate 

Liter(s) 

Liter(s) Per Minute 

Pound(s) 

L g Term Strategy For Visibility Protection 

Met (s) 

Achievable Control Technology 

Milli Equiv ent(s) 

Minute(s) 

Milligram(s) 

Milliliter(s) 

Millimeter(s) 

Mole 

Molecular Weight 

Millivolt 

Newton 

Nonattainment Area(s) 

N2 Nitrogen 

Ng Nanogram (10-9 Gr 

NPS 

NO Nitric Oxide 

N02 

NOx 

NRVOC(s) 

NSPS 

NSR 

0 

02 

5 CCR 1001-2 

Negli 1bly Reactive Volatile Organic Compound(s) 

Oxygen 

Pascal 

Particulate Matter 

Particulate Matter With Diameter Of 10 Microns Or Less 

CODE OF COLORADO REGULATIONS 
0 2010 State of Colorado 

All Rights Reserved 

33 CR 22 and 23, 11-10 Page 7 

Any are ithin Colorado designated by the Commission and approved by the U.S. EPA in 1ch the 

ambient air c entrations of any designated pollutants are less than that specified in ational 

Ambient Air Quah tandards. 

BULK PLANT 

CAPACITY FACTOR 

The ratio of average load to 

of time. 

1pment, including hoods, ducts, fans, dampers, etc., used to capture or transport air p 

CARBON DIOXIDE EQUIVALENT 

A metric used to compare the emissions from various GHGs based upon their global warming potential (GWP). C02e is determined by multiplying the mass amount of emissions (tons per year), for 

each GHG constituent by that gas's GWP, and summing the resultant values to determine C02e 

(tons per year). The applicable GSPs codified in 40 CFR Part 98, Subpart A, Table A-1 - Global 

Warming Potentials are hereby incorporated by reference as in effect as of October 30, 2009, but not 

including later amendments. 

A proce unit that recovers sulfur from hydrogen sulfide by a vapor-phase catalytic reaction · 

sulfur dioxi nd hydrogen sulfide. 

All solid fossil fuels classifie anthracite, bituminous, sub-bituminous 

American Society for Testing an aterials method. 

COAL PREPARATION PLANT 

Any machinery used to reduce size of coal or to separate coal fro refuse; the equipment used to 

convey coal or to remove c from refuse; the equipment used to conve al or to remove coal and 

including, but not limited to, breakers, crushers. sc 

e products of coal mining, cleaning, and preparation. 

CODE OF COLORADO REGULATIONS 5 CCR 1001-2 
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An facility used to store coal except for open storage areas. 

The Air Q lity Control Commission created by Colorado Revised Statutes Section 25-7-104. 

Hydrocarbon liqu s that remain liquid at standard conditions (68 degrees Fahrenheit 

es Mercury) and ar formed by condensation from , or produced with, natural gas, an 

American Petroleum stitute gravity ("API gravity") of 40 degrees or greater. 

CONSTRUCTION 

Except as listed below or un ss defined differently for a specific regulation , nstruction means the 

fabrication, erection, installatio , or modification of an air pollution source or Prevention of Significant Deterioration and New Sou e Review purposes, construction me s any physical change or 

change in the method of operation including, but not limited to, fabric ion , erection, installation, demolition, or modification of an emiss ns unit) which would result in change in actual emissions. 

CONTINUOUS MONITORING SYSTE 

A comprehensive term that may include, bu is not limited to ontinuous emission monitoring systems, continuous opacity monitoring systems, ontinuous rameter monitoring systems, or other 

manual or automatic monitoring that is used for emonst ting compliance with an applicable regulation on a continuous basis as defined by the regu tion 

CONTROL DEVICE (ST A TIO NARY) 

The air pollution control equipment used to rem utants generated by a stationary source. 

CONTROL DEVICE (MOBILE) 

Air pollution control equipment used to r 

CRUDE OIL 

Raw petroleum as it comes from e well, as pyrolyzed from kerogen, p cessed from tires, or recovered from other processes. 

CYCLONIC FLOW 

xhaust gases within a duct or stack. 

A single twenty- ur hour period from midnight to midnight or other twenty-four hour per 

proved by the ivision on a case-by-case basis. 

rado Department of Public Health and Environment. 

he Colorado Department of Revenue. 

5 CCR 1001-2 CODE OF COLORADO REGULATIONS 
C 20 10 State of Colorado 

All Rights Reserved 

33 CR 22 a nd 23, 11-10 

s, petroleum, coal, and any form of solid, liquid, or gaseous fuel derived from such 

FOUNDRY 

A facility engaged in the melting or castiri 

FUEL BURNING EQUIPMENT 

that are a part of a manufacturing proc 

sions. 

ot reasonably pass through a stack, chimney, vent or other 

movement of soil for the purpose of establishing grade and drainage. 

GREENHOUSE GAS 

Page 11 

Means the aggregate group of the following six greenhouse gases: carbon dioxide (C02), nitrous 

oxide (N20), methane (CH4), hydrofluorcarbons (HFCs), perfluorcarbons (PFCs), and sulfur hexafluoride (SF6). These gases are treated in aggregate based on the total carbon dioxide equivalent 

(C02e) of each gas as the pollutant GHG. See definition for carbon dioxide equivalent (C02e). 

Roads th re used for commercial, industrial or governmental hauling of materials and whi 

general public s not have a right to use. 

A volatile organic compo or mixture of such compounds with a vapor pres in excess of 570 

are inch absolute (psia)) at 20 degrees Celsius or 68 degre 

area having an elevation of nine hundred feet or more above the base of the stack of the source. 

CODE OF COLORADO REGULATIONS 5 CCR 1001-2 
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An organi compound consisting only of carbon and hydrogen. 

Any equipment, vice, or contrivance used for the destruction of solids, liquids or gase s wastes by 

burning. Excludes vices commonly called wigwam waste burners used exclusively 

wastes and incinerati toilet waste. Excludes devices commonly called Air Curtai estructors used 

exclusively to bum 100 wood waste, clean lumber, or yard waste generated as . result of projects 

to reduce the risk of wild 1 and is not operated at a commercial or industrial fa · ity. Any Air Curtain 

Destructor subject to 40 C Part 60 incinerator requirements is considered incinerator. 

INDIAN GOVERNING BODY 

The governing body of any tribe, b d, or group of Indians subject tot e jurisdiction of the United 

States and recognized by the United 

INDIAN RESERVATION 

greement, Executive Order, or Act of 

INTERMITIENT SOURCES 

Those stationary sources of air pollution that do no op ate on a continuous basis for a period of time 

sufficient to allow for opacity observations in ace dance ith U. S. EPA Method 9. 

ISOKINETIC SAMPLING 

Sampling in which the linear velocity oft gas entering the sam ing nozzle is equal to that of the 

undisturbed gas stream at the sample int. 

LEAD (PB) 

Elemental lead, lead containin lloys and compounds of lead. 

LOW TERRAIN 

Any area other than hi 

MACHINE SHOP 

A facility perfo ng cutting, grinding, turning, honing, milling, debarring, lapping, electro-c emical 

machining, et ing, or other similar operations. 

Any s den and unavoidable failure of air pollution control equipment or process equipment or unin 

ten d failure of a process to operate in a normal or usual manner. Failures that are primarily cause 

b oor maintenance, careless operation, or any other preventable upset condition or preventable 

quipment breakdown shall not be considered malfunctions. 

5 CCR 1001-2 CODE OF COLORADO REGULATIONS