June 22, 2015



# Market Characterization of the U.S. Aerosols Industry, U.S. Motor Vehicle Air Conditioning Industry, U.S. Commercial Refrigeration Industry, and U.S. Foams Industry

P REPARED FOR 

### :

Stratospheric Protection Division

Office of Air and Radiation U.S. Environmental Protection Agency Washington, D.C. 20460

P REPARED BY 

### :

ICF International 1725 Eye Street, NW Washington, DC 20006

J UNE 

### 201 5June 22, 2015 

## Table of Contents Acronyms and Abbreviations

................................ ................................ ................................ .............. 1 Executive Summary

................................ ................................ ................................ ............................ 2 The U.S. Aerosols Industry

................................ ................................ ................................ .................. 3 1. Introduction

................................ ................................ ................................ ................................ ...... 3 2. Market Characterization

................................ ................................ ................................ ................... 3 Overview of Aerosol Products

................................ ................................ ................................ .. 4 Consumer Aerosols

................................ ................................ ................................ ................... 5 Technical Aerosols

................................ ................................ ................................ .................... 7 Medical Aerosols

................................ ................................ ................................ ....................... 9 3. Sector Background

................................ ................................ ................................ .......................... 10 Aer osol Propellants

................................ ................................ ................................ ................. 12 Aerosol Solvents

................................ ................................ ................................ ...................... 13 4. Climate

- Friendly Alternatives

................................ ................................ ................................ ......... 14 The U.S. Motor Vehicle Air Conditioning Industry

................................ ................................ ............. 17 1. Introduction

................................ ................................ ................................ ................................ .... 17 2. Market Characterization for Light

- Duty Vehicles

................................ ................................ ........... 17 Overview of Light

- Duty Vehicles and Trucks

................................ ................................ ........... 17 Vehicle Manufacturers

................................ ................................ ................................ ............ 18 3. Sector Background

................................ ................................ ................................ .......................... 20 Refrigerant Use in Motor Vehicle Air Conditioning

................................ ................................ 21 4. Climate

- Friendly Alternatives

................................ ................................ ................................ ......... 22 HFC

- 152a

................................ ................................ ................................ ................................ . 23 HFO

- 1234yf

................................ ................................ ................................ ............................. 23 Carbon Dioxide

................................ ................................ ................................ ........................ 24 Oth er Alternatives (Not Currently Listed by SNAP)

................................ ................................ 24 The U.S. Commercial Refrigeration Industry

................................ ................................ ...................... 26 1. Introduction

................................ ................................ ................................ ................................ .... 26 2. Market Ch aracterization

................................ ................................ ................................ ................. 26 Overview of Commercial Refrigeration Systems

................................ ................................ .... 26 Equipment Manufacturers

................................ ................................ ................................ ...... 31 Equipment Owners Performing System Retrofits

................................ ................................ ... 33 3. Sector Background

................................ ................................ ................................ .......................... 33 Refrigerant Use in Commercial Refrigeration

................................ ................................ ......... 33 4. Climate

- Friendly Alternatives

................................ ................................ ................................ ......... 36 The U.S. Foams Industry

................................ ................................ ................................ ................... 39 1. Introduction

................................ ................................ ................................ ................................ .... 39 2. Market Characterization

................................ ................................ ................................ ................. 39 Overview of Foam Types and End

- Uses

................................ ................................ .................. 39 Foam Market

................................ ................................ ................................ ........................... 42 Foam Sector Revenue and Employment

................................ ................................ ................. 43 Foam Applications

................................ ................................ ................................ ................... 44 3. Sec tor Background

................................ ................................ ................................ .......................... 46 4. Climate

- Friendly Alternatives

................................ ................................ ................................ ......... 47 References

................................ ................................ ................................ ................................ ....... 50June 22, 2015June 22, 2015

1 

# Acronyms and Abbreviations

CAA Clean Air Act CFC chlorofluorocarbon CG compressed gases CO 2 carbon dioxide COP coefficient of performance CRP Cooperative Research Program CSPA Consumer Specialty Products Association DOE Department of Energy DPI dry powder inhaler EC European Commission EPA Environmental Protection Agency EU European Union FMEA Failure Mode and Effect Analysis GHG greenhouse gas GM General Motors GVWR gross vehicle weight rating GWP global warming potential HC Hydrocarbon HCFC hydrochlorofluorocarbon HFC hydrofluorocarbons HFE hydrofluoroether HFO hydrofluoroolefin MDI metered dose inhalers MT metric ton MVAC motor vehicle air conditioner NHTSA National Highway Traffic Safety Administration NPRM notice of proposed rulemaking OCF one component foams ODS ozone
- depleting substance OEM original equipment manufacturer SAE Society of Auto motive Engineers SIP State Implementation Plan SNAP Significant New Alternative Policy SUV sports utility vehicle VOC volatile organic compound XPS extruded polystyreneJune 22, 2015

2 

# Executive Summary

This report characterizes the current state of the U.S. market for the industries that are anticipated to be impacted by EPA’s Final Rule “ Protection of Stratospheric Ozone: Change of Listing Status for Certain Substitutes under the Significant New Alternatives Policy Program.” This report includes information on the aerosols industry, the motor vehicle air conditioning industry, portions of the commercial refrigeration industry , and the foams industry. Historically, each of these ind ustries has relied on ozone depleting substances (ODS) , which are substances that destroy the stratospheric ozone layer that shields the Earth from the sun’s harmful ultraviolet radiation

. E ach chapter of this document characterizes one of the se industr ies in terms of the market size and companies , historical and current use of ODS and alternatives , the availability of climate

- friendly alternative s , and barriers to transitioning to those alternative s

. In support of the Notice of Proposed Rulemaking (NPRM) , EPA made available four individual market characterizations: “ Market Characterization of the U.S. Aerosols Industry,” “Market Characterization of the Motor Vehicle Air Conditioning Industry,” “Market Characterization of the U.S Commercial Refrigeration Ind ustry,” and “Market Characterization of the U.S. Foams Industry.” These documents are available at regulations.gov in docket EPA

- HQ

- OAR

- 2014

- 0198. This report is a compilation of the four individual market characterizations and t he content has been updated to reflect information provided to EPA during the public comment period.June 22, 2015

3 

# The U.S. Aerosols Industry

**1. Introduction** 
Aerosols use liquefied or compressed gas to propel active ingredients in liquid, paste, or powder form and many also contain a solvent. The propellant is emitted during use. Historically, a variety of propellants and solvents have been available to formulators. Hydrocarbons (HCs) (e.g., propane, isobutane, blends) and compressed gases (e.g., CO 2 , N 2 O, compressed air) have long been used. P rior to 1978, CFCs were predominantly used by the aerosol industry. CFCs were excellent propellants because of their ability to produce a fine spray; they are non

flammable, could be stored under low pressure, and, for the most part, do not react with othe r ingredients. 1 In 1973 chemists Sherwood Rowland and Mario Molina began studying effects of CFCs on the earth’s atmosphere. They discovered that CFCs were stable enough to migrate to the stratosphere and that the chlorine atoms contained in these molecule s could break down large amounts of ozone in the stratosphere. In 1975, a major manufacturer of household aerosol products eliminated CFC propellants over concerns for depletion of the Earth’s ozone layer. In 1978, the United States banned CFC propellants.
As a result of the ban on CFC propellants, consumer products were reformulated or replaced with a variety of not in kind substitutes, such as pump sprays and solid or roll

- on deodorants , and alternatives such as HCs, compressed gases, oxygenated organic c ompounds , and HCFCs . However, HCFCs are controlled substances under the Montreal Protocol on Substances that Deplete the Ozone Layer , and subject to regulation under the CAA including a phaseout of production and import. Sale and distribution of aerosols u sing HCFCs was banned in 1994 with few exceptions.
HCFC propellants have been or are being replaced with a range of alternatives including HFCs (e.g., HFC

- 134a, HFC

- 152a) , HCs, compressed gases, and not

- in

- kind alternatives. In solvent uses, CFC and HCFC s have been or are being replaced by HFC

- 4310mee, HFC

- 365mfc, HFC

- 245fa, HCs, oxygenated organic compounds, and hydrofluoroethers (HFEs). Other low

- GWP fluorinated compounds are in use or under development, including HFOs. HFO

- 1234ze is being used in the ae rosol industry.
The remainder of this chapter characterizes the U.S. aerosol sector in terms of market size, key market players, historical and current propellant and solvent use, and the availability of alternative propellants and solvents.



## 2. **Market Charac terization** 
The U.S. aerosol industry is characterized by many product types and applications involving multiple companies and markets. 2 It also can be generally characterized as a North American market rather than a global market. F inished products are no t complex to manufacture and require little labor ; therefore, domestic production is more affordable than shipping products from overseas (Falcon Safety 2007) ; however, there has been an increasing amount of exports of aerosol products from major export hu bs, such as the European Union,

1 An exception is CFC

- 11, which hydrolyzes to produce hydrochloric acid (HCl). In aerosol formulations containing water, CFC

- 12 or a mixture of CFC

- 12 and CFC

- 114 was often used (UNC 2014).
2 NAICS codes were used to the extent possible to determine economic data about the aerosol market; however, the NAICS codes also include a large majority of products which are not aerosols. More detailed NAICS codes (8 to 10 digits) were researched when available.June 22, 2015

4 Argentina, and China (EC 2001; Midwest Aerosol Association 2014)

. Additionally, the U.S. aerosol market is subject to v olatile organic compound (VOC) regulations, and as a result, the United States uses larger volumes of HFCs in aerosol propellants than other markets in the world.
The aerosol market in the United States continues to grow. According to the 2011 Aerosol Pressurized Products S urvey conducted by the Consumer Specialty Products Association (CSPA), approximately 3.8 billion units were filled in 2011 by U.S. producers, which was 36 million units more than the total units filled in 2010 (CSPA 2012). Approximately $15 billion in annual rev enue is generated from the sale of aerosol products nationwide. As shown in Figure 1 , household and personal care products constitute about half of the aerosol units filled in 2011.
Figure 1 : Number of Aerosol Units Filled in 2011 in the United States (CSPA 2012)

The remainder of this section is organized into the three aerosol product categories

— consumer, technical, and medical. Information w as gathered using a variety of sources, including, market profiles, historical research, and information provided by the aerosol and chemical manufacturing industries.


## Overview of Aerosol Products
The U.S. aerosol industry is comprised of the following th ree product categories:



### • Consumer Aerosols

– this grouping consists of a wide variety of products using aerosol packaging for personal a nd household use. Examples include personal care products such as cosmetics, hairspray, body sprays, and deodorants are c overed by this category along with a wide variety of other products such as tire inflators and other automotive products (e.g., auto lubricants, brake cleaners); noise horns and safety horns; animal repellants; spray adhesive with various applications; household and office cleaning products; hand

- held spray cans; eyeglass and keyboard dusters; consumer freeze sprays (e.g., chewing gum or excrement removal); room fresheners; food dispensing products; and novelty a erosols (e.g., artificial snow, plastic string, noise makers, and cork poppers).

• Technical Aerosols

– this grouping consists of highly specialized products for sale and use solely in commercial and industrial applications that are not for normal day

- to

- da y use. Technical aerosols 

### Insect Sprays 6%

Paints and

Finishes

11% Household

Products 28% Personal Care Products 27% Food 13% Automotive 13% Animal Products <1% Miscellaneous 2%June 22, 2015

5 include (but are not limited to) those products exempted from the non

- essential products bans under EPA regulations at 40 CFR Part 82, Subpart C. 3 Products include industrial cleaners (e.g., electronic contact cleaners, flux remov ers, degreasers); pesticides (e.g., certain wasp and hornet sprays, aircraft insecticides), mold release agents, and certain dusters (e.g., for photographic negatives, semiconductor chip manufacture, specimens for observation under electron microscope); an d spinnerette lubricant/cleaning sprays. Other miscellaneous products such as industrial spray paints and document preservation sprays are also considered in this category.

• Medical Aerosols

– this grouping consists of products that are used for healing or medicinal purposes. These include, but are not limited to, products regulated by the U.S. Food and Drug Administration. Medical aerosols include metered dose inhalers for the treatment of asthma and chronic obstructive pulmonary disease , calamine spray, a nti

- fungals, wart treatments, wound care sprays, freeze or coolant spray for pain relief, spray

- on “liquid” bandages, and products for removing bandage adhesives. Although aerosol propellants are used in metered dose inhalers (MDIs), MDIs are not explored in this market characterization because they are not affected by this final rule

. 4
Some applications may be represented in more than one of the above categories. For example, insect sprayers have parallel lines of products with similar end

- uses in both te chnical and consumer applications, one to be used by line workers around electrical lines (i.e., a technical aerosol), and another as household insect repellant (i.e., a consumer aerosol). Additionally, freeze sprays can be a consumer aerosol (e.g., food f reeze sprays, animal waste sprays) or a medical aerosol (e.g., wart removers, numbing sprays).
According to the CSPA, around 400 aerosol product

- related companies exist in the United States , 12.5% of which are in California (AboutAerosols 2013). These com panies include those producing aerosol components (e.g., valves, cans, propellants, and other ingredients), formulating and marketing products in aerosol form, or filling aerosol products (AboutAerosols 2013). An estimated 138 companies have facilities wit h filling lines in the United States (CSPA 2012).


## Consumer Aerosols
Demand for consumer aerosols in the United States is most concentrated within household products, which continue to rank as the highest production product category, reporting a 2.4% increase from 2010 to 2011 (CSPA 2012). This trend is also true globally; about 90% of the 6.8 billion metal aerosol cans sold worldwide in 2011

were in the beauty and household markets with 27% of sales for household care and 69% of sales for applications in deodorant sprays, insecticides, air fresheners and styling agents (Downey 2012). A number of consumer aerosol products meet niche demands, with overall volume being very small relative to other consumer aerosol products (e.g., boat safety horns). Such products may be purchased but not used for a long period of time (e.g., years), as they may be stored for emergency uses only. Some of the larger end

- uses of consumer aerosols are described with further detail in Table 1

.

3 Under the non

- essential products ban, all aerosol produc ts, pressurized dispensers and foam products containing, or manufactured with, CFCs and HCFCs

— except those specifically exempted by the regulations and those that are listed as essential medical devices by the Food and Dr ug Administration , at 21 CFR 2.125(e)

— are banned from sale and distribution in interstate commerce in the U.S.
4 CFC

- based propellants have historically been use d in MDIs for inhalation therapy. A gradual shift toward the use of HFC propellants, including HFC

- 134a and HFC

- 227ea, began in the early 1990s. Dry powder inhalers (DPIs) are an alternative to MDIs; these delivery systems do not require a propellant and h ave been in use for more than 20 years. Although DPI use is on the rise and accounts for about
one
- third of all inhaled medication, it is recognized that both DPIs and HFC MDIs play important roles in inhalation therapy.June 22, 2015

6 Table 1 . Market Characterization for Consumer Aerosols

Product Major Producers Key Market Information Propellants 1 Solvents 1

Air Fresheners • Henkel AG & Co.

• KGaA

• Procter & Gamble

• Reckitt Benckiser

Inc.

• SC Johnson & Son • U.S. market grew by 3.4% in 2011 (Research and Markets 2012a)

• Value of $1.8 million with total revenue of

$770 million

• Pump/aerosol air fresheners account for

44% of market’s total value in 2011 (Research and Markets 2012a) • HCs

• HFC

- 152a

• N ot

- in

- kind

• C ompressed

gase s (CGs) U

Deodorants/ Anti

perspirants • Procter & Gamble

• Unilever

• Colgate Palmolive

• Dial Corporation

• Lever Brothers

• Revlon

• Church and

Dwight • Spray deodorants account for 14% of North America’s deodorant sales (Downey 2012).

• U

. S

. deodorants market generated total

revenues of $2.5 billion in 2009, at a compound annual growth of 4.8% from 2005

- 2009 (Research and Markets 2012b) • HCs

• HFC

- 152a

• N ot

- in

- kind

• U

Household Cleaners 5 • Procter & Gamble

• Chase Products

Co.

• The Clorox

Company

• SC Johnson & Son

• Church and

Dwight

• Reckitt Benckiser

Inc. • Household products continue to rank as the highest production product per unit of aerosol cans filled, reporting a 2.4% increase from 2010 to 2011 (CSPA 2012) • HCs

• CGs

• Dimethyl ether U

Hair Spray • Alberto

- Culver Company

• Kao Brands

• Procter & Gamble

• Unilever • Approximately 303 million aluminum and steel containers of hair spray were filled in 2011 as reported by 97 U.S. company facilities (CSPA 2013)

• In 1999, HFC

- 152a was used in

approximately 31.7 million hair sprays based on a review of 62 products (ICF 1999)

• Pump sprays account for 44% of the

market (HHS 2013) • HCs

• HFC

- 152a

• U

Tire Inflators • ITW Global Brands

• Valvoline, Co.

• Radiator Specialty

Company

• Warren

Distribution, Inc.

• Hutchinson Tires U • HCs

• Dimethyl ether HFC

- 134a U

Brake Cleaners • Sprayaway, Inc.

• Trak Auto

Corporation U • CO 2 • Perchloro

ethylene

5 This category in the CSPA survey contains a large number of products, including room deodorants and disinfectants, cleaners for glass, oven, rug, fabric, wall, tile etc., laundry products, waxes and polishes, and other household products (e.g., shoe polishes, dyes, leather dressings, fue ls, drain openers, antistatic sprays, caulking and sealing compounds).June 22, 2015

7 Product Major Producers Key Market Information Propellants 1 Solvents 1
Safety Horns • Falcon Safety • According to Falcon Safety, signal horns do not use HFC

- 152a because of safety concerns; HCs are safer for these applications than HFC

- 152a.

• One manufacturer makes about 100,000

horns per year and 100,000 refills a year (Falcon Safety 2007) • HCs

• HFC

- 134a

• HFO

- 1234ze U

Dusters • Falcon Safety

• Sprayaway • The duster spray market has increased steadily with the adv ent of digitalization in the United States , but is now a mature market (Falcon Safety 2007)

• One manufacturer makes 500,000

– 1

million cans (10 ounces) per year charged with HFC

- 134a and 11 million cans per year charged with HFC

- 152a (Falcon S afety 2007)

• CSPA estimated that in 2008,

approximately 1,300 metric tons (MT) of HFC

- 134a (14%) and 8,300 MT of HFC

- 152a (86%) were used as propellants in dusters (CSPA 2008). • HFC

- 134a

• HFC

- 152a

• HCs

• Dimethyl ether Not Applicable

U indicates that information is not readily available

. 1 Based on production of new units in the United States in 2014 

## Technical Aerosols
Many of the products within the technical aerosols category, defined above, including aircraft maintenance products, wasp and hornet sprays, and spinnerette lubricant sprays, are highly specialized products that fill niche market demands. Table 2 below presents a summary of the major producers, historically used propellants and solvents, and currently used propellants and solvents for commonly

- used technical aerosols.
Table 2 : Market Characterization for Technical Aero sols

Product Major Producers Key Market Information Propellants Solvents
Historical Current (2014) Historical Current (2014) Degreasers • CRC Industries

• ITW, Inc.

• Micro

- Care

• Miller

Stephenson

• Price

Driscoll Corporation

• SprayOn,

Inc.

• Zep

Commercial U • CFC

11/CFC

- 12 mixture

• Methyl

chloroform • HFC

- 134a

• HFC

- 152a

• HCs

• Com

pressed g ases • CFC

- 11

• CFC

- 113

• HCFC

225ca/cb • Chlorinated solvents

• trans

- D ichloro

ethylene

• HFC

- 43

- 10mee

• HFC

- 365mfc

• HFC

- 245fa

• HFE

- 7100

• HFE

- 7200

• n
- P ropyl bromide

• Dimethyl ether

• Petroleum

distilla tesJune 22, 2015

8 Product Major Producers Key Market Information Propellants Solvents
Historical Current (2014) Historical Current (2014)

• Oxygenated organic

compounds

Aircraft Maintenance Products • 3M Company

• GLI Aviation

Products

• ITW, Inc.

• LHB

Industries • Non

flammability is a critical characteristic • HCFC

- 22

• CO 2 • CO 2

• N ot

- in

kind • HCFC

- 141b • HFE

- 7100 and blends

• HFC

- 43

- 10mee

• trans

- D ichloro

ethylene

• Not

- in

- kind

• Petroleum

distillates

• Oxygenated organic

compounds Wasp and Hornet Sprays 6 • Amrep, Inc.

• LTC Products U • HCFC

- 22

• CO 2

• HCs • CO 2

• Nitrogen • Methyl chloroform • Petroleum distillates

• Water Spinnerette Lubricant Sprays 7 • ALFA

• G. D.

Silicones Tania Internationa l

• ITW, Inc.

• Price

Driscoll Corporation • Specialty product with only four manufacturers

– small percentage of the product line

• In 1998, one

company was selling 20,000 cans per year and another manufactured 100,000 cans per year (ICF 1998). • CFC

- 12

• HCFC

- 22 • HFC

- 134a • CFC

- 114 • n
- Propyl bromide

• Dimethyl ether

• Methyl siloxanes

Brake Cleaners • Sprayaway, Inc.

• Trak Auto

Corporation U U • CO 2 • Methyl
c hloroform • Perchloroethylene

6 Wasp and hornet sprays are often used by industrial users, such as public utility workers, for use on high

- tension power lines.
7 Spinnerettes are used for the production of synthetic fibers (e.g., nylon). They are steel structures with many tiny holes through which melted resin is passed to form a spun fiber. Lubricants are applied to the spinnerette to facilitate spinning and prevent the fibers from sticking to the accumulated resin on the block (ICF 1998).June 22, 2015

9 Product Major Producers Key Market Information Propellants Solvents
Historical Current (2014) Historical Current (2014)
Flux Removers 8 • CRC Industries

• ITW, Inc.

• Micro

- Care

• Miller

Stephenson

• Petroferm,

Inc. U • CFC

- 12 • HFC

- 134a • CFC

- 11

• CFC

- 113

• Methyl

chloroform

• HCFC

- 141b

• HCFC

225ca/cb • HFC

- 4310mee

• HFC

- 245fa

• trans

- D ichloro

ethylene

• Chlorinated

solvents

• n
- P ropyl bromide

• Oxygenated organic

solvents Document Preservation Sprays 9 • Preservation Technologie
s U • CFC

- 12

• HCFC

- 22 • CO 2

• HCs • CFC

- 113

• HCFC

- 141b • Petroleum distillates

Dusters 10 • CRC Industries

• Falcon

Safety

• MG

Chemicals

• SprayOn,

Inc. U U • HFC

- 134a Not applicable Not applicable

Lubricant Sprays 11 • Amrep, Inc.

• Price

Driscoll Corporation U U • HCs

• CO 2

• Nitrogen • HCFC

- 141b U

Mold Release Agents • Amrep, Inc.

• Price

Driscoll Corporation

• Sprayon U • CFC

- 12

• HCs

• CO 2 • HCs

• CO 2

• HFC

- 134a

• not

- in

kind • CFC

- 11

• CFC

- 113

• HCFC

- 141b • Methylene chloride

• Perchloroethylene

• HCs

• Oxygenated organic

solvents

• Water U indicates that information is not readily available. Sources: ICF (1998); CSPA (2008); HHS (2013). 

## Medical Aerosols
Limited information is available regarding the market size for medical aerosols, including liquid bandages, freeze sprays (i.e., wart removers), calamine sprays, anti

- fungal sprays, and bandage adhesive and remover. There are not

- in

- kind alternatives currently available for most of these medical aerosols, including lotions and pump sprays; however, some medical aerosols rely on the cooling effect of the aerosol propellant evaporating off of

8 Flux removers are used to clean excess flux and solder residue from circuit boards and electrical components.
9 Document preservation sprays are deacidification sprays that neutralize the acid in paper that causes paper to weaken and become brittle over time. 10 Dusters that fall under the technical aerosols category include more specialized dusters used for applications such as photog raphic negatives, semiconductor chip manufacture, and specimens for observation under electron mic roscope. 11 Lubricants reduce friction, heat, and wear when applied to the surfaces between moving parts. They are mainly used to repair and maintain electronic equipment and reduce friction between mechanical parts. Cleaner lubricants remove dirt and dust while simultaneously applying a protective layer of grease on a given surface (ICF 1998). Examples of applications include aircraft maintenance and electrical, electronic or photographic equipment.June 22, 2015

10 skin (e.g., freeze sprays). Table 3 provides a summary of the major producers and gases historically and cu rrently used as propellants and solvents in medical aerosols, as available.

Table 3 : Market Characterization Summary for Medical Aerosols

Product Major Producers Key Market Information Propellants Solvents Historical Current Historical Current

Liquid Bandages • Amerisource Bergen Corporation

• Johnson &

Johnson Consumer Companies, Inc.

• NMS

Technologies

• Prestige

Brands, Inc. U Not applicable • HCs

• not

- in

- kind U • Oxygenated organic solvents

Freeze Sprays 12 • Merck & Co., Inc.

• Prestige

Brands, Inc. U • CFCs • HCs

• Liquefied

petroleum gas

• Dimethyl

ether

• not

- in

- kind U • Oxygenated organic solvents

Calamine Spray • Johnson & Johnson Consumer Companies, Inc. U • CFC

- 11/12 mixture

• CFC

- 12

• HCFC

- 22 • HCs

• Dimethyl

ether

• not

- in

- kind • Methylene chloride

• HCFC

- 141b • Oxygenated organic solvents

Anti

- fungal Sprays • MSD Consumer Care, Inc. U • CFC

- 11/12 mixture

• CFC

- 12

• HCFC

- 22 • HCs

• Dimethyl

ether

• not

- in

- kind • Methylene chloride

• HCFC

- 141b • Oxygenated organic solvents

Bandage Adhesive and Remover • ARI

• Medline

Industries, Inc.

• Pac

- Kit Safety

Equipment U • CFCs • HCs

• DME

• not

- in

- kind • CFC

- 113 • Oxygenated organic solvents

Sources: HHS (2013); Good Guide (2013); EPA (2013a); Proctor & Gamble (1973); EPA (1990) ; Gertrude Fisher ( 1978 ) U indicates that information is unavailable.



## 3. **Sector Background**
Historically, a variety of propellants and solvents have been available to aerosol formulators. While HCs (e.g., propane, isobutane, blends) and CGs (e.g., CO 2 , N 2 O, compressed air) have always had a market presence, before 1978, CFCs and other ODS were the predominant propellants and solvents used by the aerosol industry because of their excellent mixing, solvating, and dispersing properties. CFC

- 12 was the most popular propell ant while other CFCs (e.g., CFC

- 11 and

- 113) and methyl chloroform were often used as solvents in aerosols. CFCs were excellent as propellants because of their ability to produce a fine spray; they were non

- flammable, could

12 Freeze sprays include both wart removing freeze sprays a nd topical coolant sprays for pain alleviation.June 22, 2015

11 be stored under low pressure, di d not react with other ingredients, and were safe to use. CFCs were also excellent solvents because they were effective at dissolving active ingredients used in aerosol products.
In response to the 1978 ban, m any consumer products previously using CFCs we re reformulated successfully to

use non
- ODS propellants and solvents or were replaced by not

- in

- kind alternatives, such as pump sprays or solid and roll

- on deodorants . The market trended toward the use of these not

- in

- kind products, which make up an import ant share of the market in household and industrial products; however, not

- in

- kind products often present “trade

- offs” to manufacturers in terms of cost, effectiveness, safety, and environmental properties (IPCC 2005), and the number of aerosol products us ed in the U nited S tates continues to grow. In

- kind a erosol propellant alternatives also emerged into the market in response to the 1978 ban including HCFCs

— notably HCFC

- 22 as a propellant, and HCFC

- 141b and HCFC

- 225ca/cb as solvents

— in addition to HCs, com pressed gases, and oxygenated organic compounds (e.g., alcohols, ketones, esters).

Section 610 of the 1990 CAA Amendments established the nonessential product bans which addressed most of the remaining uses of CFCs and HCFCs in aerosols and pressurized dispensers

. 13 The Nonessential Product Bans in 1993 and 1994 prohibited the sale, distribution, or offer for sale or distribution of all CFC

- containing and HCFC

- containing aerosols except those specifically exempted . In establishing these bans, the EPA cons idered the purpose or intended use of the product, the technological availability of alternatives, issues of safety and health, and other relevant factors 14

. Some uses of CFCs in aerosols (such as solvents, active ingredients, or sole ingredients) and certa in uses of CFC

- based aerosol propellants were exempted from the ban given the lack of alternatives available at the time.
In the 1990s, HCFC propellants began to be replaced with high

- GWP HFCs

— including HFC

- 134a

— as well as a variety of lower or no global w arming potential alternatives, such as HCs, compressed gases, not

- in

- kind alternatives, and HFC

- 152a. Similarly, HCFC solvents also began to be replaced by HFC

- 4310mee, HFC

- 365mfc, HFC

- 245fa, HCs, oxygenated organic compounds, and HFEs. The industry overca me technical hurdles with HFCs and HFEs by blending these compounds with substances such as trans

- 1,2

- dichloroethylene to increase solvency. T rans
- 1,2

- dichloroethylene, commonly referred to as “trans,” is an aggressive solvent. Because of this characterist ic, and because of its flammability, trans is usually combined with other solvents, such as HFCs and HFEs, to form effective azeotropes that are less flammable and less aggressive on precision metal and electronics parts.
Additionally, the U.S. aerosol ma rket is using a larger volume of HFCs in aerosol products relative to aerosol markets globally due to continuously evolving state and federal regulations for VOCs that require manufacturers to limit the amount of VOC (e.g., HCs) in their formulations for v arious locations of the country. HFCs, such as

13 Products still using CFCs at the time included plastic party streamers, noise horns (e.g., marine safety noise horns, sportin g event noise horns, personal safety noise horns), and cleaning fluids for noncom mercial electronic and photographic equipment (e.g., solvent wipes, keyboard dusters, flux removers, and tape and computer disk head cleaners).

14 EPA exempted the following products from the nonessential product bans: Aircraft pesticides; Medical devices listed in 21 CFR 2.125(e); Lubricants, coatings, or cleaning fluids for aircraft maintenance containing CFCs or HCFCs as solvents; Lubricants, coatings, or cleaning fluids for electrical, electronic or photographic equipment containing CFCs or HCFCs as sol vents; Mold release agents containing CFCs and HCFCs as solvents and mold release agents containing HCFC

- 22 as a propellant; Spinnerette lubricant/cleaning sprays containing CFCs or HCFCs as solvents and/or propellants ; Document preservation sprays contain ing CFCs and HCFCs as solvents; Document preservation sprays containing CFCS or HCFCs as propellants for use on thick books with coated or dense paper, and tightly bound documents, only; Wasp and hornet sprays containing CFCs or HCFCs for use near high

- ten sion power lines only; Lubricants for pharmaceutical and tablet manufacture; Gauze bandage adhesives and adhesive removers; and Red pepper bear repellent sprays which contain CFC

- 113 as the solvent but which contain no other CFCs.June 22, 2015

12 HFC

- 152a, are exempt from the definition of VOC in regulations under the CAA addressing the development of State Implementation Plans (SIPs) to attain and maintain the national ambient air quality standard for ozone (40 CFR 51.100(s)), and therefore, can be suitable alternative s to VOC s in states (or municipalities) with VOC restrictions.
VOC regulations often drive propellant and solvent formulation choices in aerosol products. States that regulate the VOC content in consumer products include California, the Ozone Transport Commission or “OTC” states (Virginia to Maine), and the Lake Michi gan Air Directors Consortium, or “LADCO” states (Illinois, Indiana, Michigan, Ohio, and Wisconsin) (Geer 2011; ISSA 2012; Beaver 2011). Individual states such as Texas and Georgia and counties within certain states (e.g., Atlanta metro area and Phoenix) al so have VOC regulations (Beaver 2011). VOC regulations can affect the entire aerosol formulation

— the solvent system must match the propellant formulation, and if one component changes, the entire formulation is affected.
Different products have different VOC limits, which can vary based on local regulations. For example the VOC limit for hairspray cannot exceed 80 percent (on a weight percent basis) according to EPA regulation. However, in California and other states with VOC regulations, the limit cannot exceed 55 percent; for aerosol deodorants, EPA has a 20 percent VOC limit, but California and other states only allow a 0

- 10 percent limit (ISSA 2012).
Although on occasion differing formulations have been designed for the same product in different locale s, it is often not practical for an aerosol manufacturer to change the aerosol formulation of the same product to address varying VOC regulations (i.e., no

- VOC, low

- VOC, and high

- VOC formulations). Therefore, to comply with VOC regulations in one state or area (e.g., if HFC

- 152a is the only option in California), a manufacturer may use the same VOC exempt substitute in all formulations of one product across the U nited S tates , which increases the use of HFCs nationally for some products. 

## Aerosol Propellant **s** The U.S. aerosol industry has already made significant progress in adopting a variety of propellants and not

- in

kind alternatives to ODS propellants ; however, high

- GWP HFC propellants continue to occupy a portion of aerosol products on the market, partic ularly in personal consumer products and auto products. Table 4 illustrates a sample of household aerosol products containing propellants queried from the U.S. Departm ent of Health and Human Services Household Product Database (HHS, 2013). Based on this sampling , personal care (which are also the largest continued user of HFC propellants) and household and home office products make up the majority of aerosol products cu rrently manufactured.June 22, 2015

13 Table 4 : Sample of Propellants in Aerosol Products from the U.S. HHS Household Products Database a

Category (Total Sample Size) Propellant Type Percentage of Products in Sample by Propellant Type

Arts and Crafts (74) HFC

- 134a 1% Hydrocarbons 96% Dimethyl ether 3%

Auto Products (130) HFC

- 134a 12% HFC

- 152a 3% Hydrocarbons 72% Carbon dioxide 2% Dimethyl ether 11%

Home Maintenance (154) HFC

- 134a 6% Hydrocarbons 76% Dimethyl ether 16%

Household and Home Office (364) HFC

- 134a 1% HFC

- 152a 3% Hydrocarbons 86% Compressed Gas 6% Dimethyl ether 3%

Personal Care (285) HFC

- 134a <1% HFC

- 152a 35% Dimethyl ether 18% Hydrocarbons 46% Pesticides (92) HFC

- 152a 1% Hydrocarbons 99% Pet Care (16) Hydrocarbons 70% Dimethyl ether 30%

a Source: HHS (2013). Note: A query was performed in March 2013 on the aerosol products listed in the U.S. HHS Household Products Database to provi de the sampling shown in this table. Products were identified through searches of products containing known aerosol propellants. This table and the U.S. HHS Household Products Database does not provide a comprehensive compilation of all products on the market that utilize aerosol propellants. Rather, this sampling is intended to demonstrate the various aerosol propellants used in 2013 among categories tracked in this database. Different variations of the same product (i.e. air fresheners with different scents or s pray paints of different colors) are counte d as separate products. In the early to mid

- 1990s, ODS propellants in use continued to include CFC

- 12, CFC

- 114, HCFC

- 22, and HCFC

142b because their market presence was in exempted products only. HCFC

- 22 was the most widely used HCFC propellant in the 1990s with the transition from CFC

- 12 to HCFC

- 22 taking place during 1990 and 1991. Beginning in the 1990s the aerosol industry also became far more dependent on HFCs with the introduction of VOC regulations in the 1990s, despite the widespread use of HCs

- - known VOCs

-- in aerosol products.
CSPA estimated that in 2008, the majority of products using HFC

- 152a were consumer products (e.g., hairsprays, dusters, deodorant body sprays, antiperspirants, and deodorants) with total use equal to 21,417 metric tons (M T), and the majority of products using HFC

- 134a being technical products (e.g., tire sealant/inflators and degreasers) with total use of 3,242 MT (CSPA 2008).


## Aerosol Solvents

Table 5 illustrates a sample of household aerosol products containing solvents queried from the U.S. Department of Health and Human Services Household Product Database (HHS 2013). As shown, most types ofJune 22, 2015

14 aerosol products require solvents such as alcohols and hydrocarbons. Water is also a commonly used solvent; however, those products are not reflected in the table below due to it being difficult to isolate aerosol products using water as a solvent from those containing water for other purposes

. Table 5 : Sample of Solvents in Aerosol Products from the U.S. HHS Household Products Database Category (Total Sample Size) Solvent Type Percentage of Product in Sample by Solvent Type

Arts and Crafts (111) Hydrocarbons 47% Oxygenated Organic Solvents 50% Chlorinated Organic Solvents 4%
Auto Products (163) Hydrocarbons 37% Oxygenated Organic Solvents 45% Chlorinated Organic Solvents 17%
Home Maintenance (72) Hydrocarbons 44% Oxygenated Organic Solvents 35% Chlorinated Organic Solvents 19%
Household and Home Office (97) Hydrocarbons 71% Oxygenated Organic Solvents 24% Chlorinated Organic Solvents 5% Personal Care (3) Hydrocarbons 100% Pesticides (19) Hydrocarbons 100% Pet Care (2) Hydrocarbons 100% Source: HHS (2013). Note: A query was performed in March 2013 on the aerosol products listed in the U.S. HHS Household Products Database to provi de the sampling shown in this table. Products were identified through searches of products containing known aer osol solvents. This table and the U.S. HHS Household Products Database do not provide a comprehensive compilation of all products on the market that utilize aerosol solvents. Rather, this sampling is intended to demonstrate the various aerosol solvents used in 2013 among categories tracked in this database. Different variations of the same product (i.e. air fresheners with different scents or spray paints of diff erent colors) are counted as separate products. Aerosol solvent applications historically us ed CFC

- 11, CFC

- 113, methyl chloroform, and HCFC

- 141b. CFC

- 11 was used in precision and general mold release agents exclusively as a diluent, 15 not as an active ingredient in solvent applications. CFC

- 113 served as both a diluent and active ingredient (i.e., in electronics solvent cleaners and as a diluent in mold release agents and lubricants). Methyl chloroform was more widespread in its use (i.e., as a diluent in applications such as water and oil repellants, tire shiners, insecticides, and mold release ag ents and as a solvent in electric motor cleaners, spot removers, and brake cleaners). Information on the use of HFC s, such as HFC

- 43

- 10mee and HFC

- 365mfc , in the aerosol solvent market is not readily available; however, it is expected to be minimal (IPCC 2 005).



## 4. **Climate**

**- Friendly Alternatives** 
A variety of alternatives are available to replace HCFC, HFC

- 134a and HFC

- 152a propellants and HCFCs, HFC

4310mee, HFC

- 365mfc, and HFC

- 245fa solvents used in aerosols. Many alternatives have an established market presen ce because of the direct transition from CFCs and HCFCs to hydrocarbons, oxygenated organic compounds, and not

- in

- kind alternatives. Low er
- GWP fluorinated compounds are also in use or under development, including HFOs

. Table 6 below summarizes the current use in the U nited S tates and the status under SNAP.

15 A diluent is a type of solvent used to weaken the strength of a particularly aggressive solvent.June 22, 2015

15 Table 6 : Overview of Climate

- friendly Alternatives Alternative Overview Aerosol Propellants C3

- C6 Hydrocarbons (propane, n

- butane, isobutane) • Acceptable under SNAP

• Widely used in consumer, technical, and medical aerosols in the U nited States Dimethyl Ether • Acceptable under SNAP

• Widely used in consumer, technical, and medical aerosols in the U nited States Not

- in

- kind devices • Acceptable under SNAP

• Widely used alternative to aerosolized products in consumer, technical, and medical aerosols Compressed Gases (carbon dioxide, air, nitrogen, nitrous oxide) • Acceptable under SNAP

• Widely used in consumer, technical, and medical aerosols in the U nited States HFO

- 1234ze(E) • Acceptable under SNAP

• Available in the U.S. market as of 2012 Aerosol Solvents C5

- C20 Hydrocarbons (pentane, hexane, heptane) • Acceptable under SNAP

• Widely used in consumer, technical, and medical aerosols in the U nited States HFE

- 7000, HFE

- 7100, HFE

- 7200, HFE

347pcf2 • Acceptable under SNAP

• Widely used in the U.S. market (HFE

- 347pcf2 still emerging in the U.S. market) in technical aerosols SolsticeTM

- 1233zd(E) (al so known as trans

1

- chloro

- 3,3,3

- trifluoroprop

- 1

- ene) • Acceptable under SNAP

• Available in the U.S. market as of 2013 MPHE • Acceptable under SNAP Oxygenated Organic Compounds (esters, ethers, alcohols, and ketones) • Acceptable under SNAP

• Widely used in consumer, technical, and medical aerosols in the U nited States Water • Acceptable under SNAP

• Widely used in consumer, technical, and medical aerosols in the U nited States

Many companies have already transitioned to non

- HFC propellants and solvents; however, technical, financial, and practical barriers have exist ed for some products that have prevented the complete transition away from HFCs in aerosols. The European aerosol industry has adopted a Code of Practice against using HFCs whenever feasible with only a small number of technical aerosols that do not have safe, practical, economic or environmentally acceptable alternatives using HFCs. These include products used in mai ntenance, repair, cleaning, testing, disinfecting, manufacturing, installation and other applications where a non

- flammable formulation is required for safety reasons (EAF 2013). In the United States, HFCs are often the propellant and/or solvent of choice to address product

- related performance and flammability concerns when VOCs are restricted, although water is also a widely

- used solvent in such cases

. R eplacements to HFCs are typically not drop

- in replacements since the entire formulation must be evaluat ed and potentially changed. Safety considerations are another factor for this industry when evaluatingJune 22, 2015

16 alternative formulations. In undergoing a transition to certain replacements (e.g., flammable or more toxic compounds), workplace environmental controls may be a large expense for a company if they do not already have them in place. Liability insurance and associated plant safety requirements will increase if transitioning to the use of a flammable propellant or solvent. Several additional factors must be examined when reformulating including safety hazards (e.g., toxicity, corrosiveness, irritants, cancer/reproductive harm, flammability), container corrosion, properties of the propellant (e.g., vapor pressure, flash point, solubility in water, boiling poin t), efficacy, and cost (Geer 2011).

T he use of HFCs is considered by the U.S. aerosol industry to be flat to declining, and compared to other sectors where HFCs are used (e.g., refrigeration, AC, foams) total use is on a smaller scale.June 22, 2015

17 

# The U.S. Motor Vehicle Air Conditioning Industry

**1. Introduction** 
Motor vehicle air conditioners (MVACs) cool the passenger compartment of light

- duty vehicles ( i.e., passenger cars), light

- duty trucks, heavy

- duty vehicles, off

- road vehicles, buses, and passenger rail vehicles. The MVAC sector historically relied on CFC

- 12, and to a more limited extent, HCFC

- 22 in passenger rail and buses, both of which are ODS. In advance of the 1996 phaseout of CFC

- 12 a nd the continued phaseout of HCFCs, the U.S. MVAC industry largely transitioned away from ODS by 1994, relying most heavily on a high

- GWP refrigerant, HFC

- 134a. While HFC

- 134a remains the most predominant refrigerant used in new cars today, low er
- GWP alter natives are entering the U.S. market in newly manufactured light

- duty vehicles. This is facilitated by EPA approval of alternatives under the SNAP Program and the availability of air conditioning credits to enable companies to meet the U.S. fuel economy standards for light

- duty vehicles and trucks.

The remainder of this chapter characterize s the MVAC sector for light

- duty vehicles and trucks manufactured and sold in the United States in terms of market size, key market players, historical and current ref rigerant use, the availability of alternative refrigerants, and barriers to transitioning to alternative refrigerants. L ight

- duty vehicles and trucks are the most numerous of the vehicle types , and the only types of vehicles affected by this rulemaking

.



## 2. **M arket**  **Characterization for Light**

**- Duty Vehicles** 
This section presents available market data on automobile and MVAC manufacturers. The majority of vehicle manufacturers assemble and install their own MVAC systems, while a limited number may purchase assemble d MVAC systems. Because almost all cars sold in the United States are equipped with an air conditioning system, vehicle production, import and export, and sales data are used to characterize the light

- duty MVAC market in the United States. 

## Overview of Ligh **t**
**- Duty Vehicles and Trucks** 
Definitions and fleet estimates of light

- duty vehicles and trucks are provided below.

• Light

- duty vehicles include standard and large passenger cars, which meet the criteria outlined in 40 CFR 86.1803

- 01, which defines light

- duty vehicles as a passenger car or passenger car derivative capable of seating 12 passengers or less, and categorized as Class 1 vehicles with gross vehicle weight rating less than 6,000 lbs (EPA 2010a). Typical light

- duty vehicles include passenger cars, min ivans, sports utility vehicles (SUVs), pick

- up trucks, and utility vans (EPA 2011 a ). These vehicles represent the largest use of MVAC.

• Light

- duty trucks are defined as vehicles with gross vehicle weight rating less than 8,500 lbs, or between 8,500 and 10, 000 lbs that meet the criteria outlined in 40 CFR 86.1803

- 01, which defines a light

- duty truck as any motor vehicle rated at 8,500 pounds gross vehicle weight rating (GVWR) or less which has a vehicle curb weight of 6,000 pounds or less , a basic vehicle f rontal area of 45 square feet or less, and which is: (1) Designed primarily for purposes of transportation of property or is a derivation of such a vehicle, (2) Designed primarily for transportation of persons and has a capacity of more than 12 persons,

or (3) Available with special features enabling off

- street or off

- highway operation and use. Vehicles inJune 22, 2015

18 this category are categorized as Class 2A vehicles and include truck

- based station wagons, minivans, full size pick

- up trucks, and full

- size SUVs (EPA 20 11 a ; DOT 2013a).
Fleet estimates (i.e., the number of vehicles in use) within the United States are summarized in Table 7 below, based on readily available literature.

Table 7

. Light

- D uty Vehicle and Truck Fleet Size Estimates
Year Number of Light

- D uty Vehicles and Trucks Source
2010 239,812,000 a Ward’s (2011)
2010 237,129,000 ICCT (2012)
2011 233,841,000 b DOT (2013a)

a Includes 118,946,744 cars and 120,865,240 commercial vehicles.
b Includes light

- duty vehicles (192,513,278 short wheel base and 41,328,144 long wheel base). 

## Vehicle Manufacturers
Available 2011 U.S. Census data on the U.S. vehicle manufacturing industry is provided in Table 8 , including information on total shipment values , number of employees, number of establishments, and number of companies/firms.
Table 8 . 2007 Census Data on the Vehicle Manufacturing Industry

Industry NAICS code Total Value of Shipments* ($1,000) Number of Employees Number of Establishments Number of Companies/Firms Automobile and Light

- Duty Motor Vehicle Manufacturing 336111 84,727,558 65,436 188 174
Light Truck and Utility Vehicle Manufacturing 336112 154,035,538 84,806 90 66
*Value of shipments is defined as received or receivable net selling values, free on board plant (exclusive of freight and taxes), of all products shipped as well as all miscellaneous receipts, such as receipts for contract work performed for others, installa tion and repair, sales of scrap, and sales of products bought and sold without further processing.
Known light

- duty vehicle and truck manufacturers within the United States are listed below, based on Lowe et al. (2010), Nielsen et al. (2010), EPA (2011 a ) , and Burden (2015) . The companies listed we re identified during literature review while developing this report, and do not necessarily represent an inclusive list of all companies manufacturing within the United States.

• Audi • Hyundai • Nissan

• BMW • Isuzu • Porsche

• Fiat Chrysler Automobile (FCA) • Kia • Subaru

• Ford • Mazda • Toyota

• General Motors (GM) • Mercedes

- Benz • Volkswagen

• Honda • Mitsubishi • Volvo

The largest light

- duty vehicle and truck manufacturers in the United States are GM, Ford, and FCA. T he “Detroit Three” are headquartered in the Detroit, Michigan area, with the majority of their U.S. plants located in theJune 22, 2015

19 Great Lakes region, and the remainder primarily located in southern states (International Trade Administration 2010).



### 2.2.1. **Vehicle Production**
Production e stimates for the U.S. vehicle manufacturing industry by vehicle type are presented in Table 9

. Table 9 . Estimated Number of Light

- D uty Vehicles and Trucks Produced Annually in the United States

Year Production Light

- D uty Vehicles Light

- D uty Trucks Total
2005 4,284,391 7,249,964 11,534,355
2006 4,340,673 6,525,355 10,866,028
2007 3,895,684 6,583,451 10,479,134
2008 3,755,039 4,701,500 8,456,539
2009 2,229,656 3,333,408 5,563,064
2010 2,781,947 4,776,365 7,558,312
2011 3,019,848 5,388,169 8,408,017
2012 4,106,991 5,937,229 10,044,220
2013 4,357,929 6,446,965 10,804,894 Sources: OICA (2014), BEA (2014), Automotive News (2008, 2009, 2011, 2012), DOT (2014)



### 2.2.2. **Imports and Exports**  **Market** The U.S. import and export markets for light

- duty vehicles and trucks are significant. Foreign markets accounted for nearly 70% of Ford vehicles sold in 2007 and 64% of GM’s total sales in 2008. Canada was the top export destination, with exports of $17 bi llion, followed by Germany ($3.6 billion), Saudi Arabia ($2.95 billion), China ($2.91 billion), and Mexico ($2.8 billion) (International Trade Administration 2011). In 2013, over 20% of the vehicles produced in the United States were exported to approximat ely 180 countries, representing over $52 billion ( Association of Global Automakers 2014 a )

. International automakers, which contribute to approximately 45% of all U.S. vehicle production, exported nearly 800,000 veh icles to more than 60 countries in 2013 ( A GA and AIADA 2014) . Exports vary broadly among the major manufacturers in the United States. GM, Ford, and FCA have traditionally exported most successfully to the Middle East and Central and South America while BMW and Mercedes

- Benz use their U.S. facilit ies to satisfy the full global demand for their SUVs

. Japanese manufacturers are increasingly export ing vehicles from the United States to Central and South America (Alliance of Automobile Manufacturers 2014)

. The United States imports more vehicles by vo lume and value than any other country. In 2010, Mexico, Canada, Germany, Japan, and Korea accounted for 93% of all U.S. light

- duty vehicle imports; Mexico and Canada alone accounted for 48% of U.S. light

- duty vehicle imports (International Trade Administra tion 2011).
Vehicle import and export estimates for the U.S. industry by vehicle type are presented in Table 10 . The International Trade Administration (2014) provid ed both import and export data of light

- duty vehicles and trucks; however, the data combined light

- duty vehicles and trucks. To disaggregate the data into light

- duty vehicles and trucks, the annual ratio of light

- duty vehicles to trucks that are produced b ased on the production data ( Table 9 ) was applied to the total, which is roughly 40 percent light

- duty vehicles and 60 percent light

- dutyJune 22, 2015

20 trucks each year.

Table 10 . Estimated Number of Vehicles Imported and Exported by the U nited States

Year Imports Exports Light

- duty Vehicles Light

- duty Trucks Total Light

- duty Vehicles Light

- duty Trucks Total

2005 2,453,820 4,143,277 6,597,097 471,291 795,774 1,267,065 2006 2,940,203 4,409,859 7,350,062 578,822 868,144 1,446,966 2007 2,656,448 4,478,232 7,134,680 614,905 1,036,606 1,651,511 2008 2,883,764 3,603,015 6,486,779 703,188 878,572 1,581,760 2009 1,746,438 2,598,200 4,344,638 405,610 603,432 1,009,042 2010 2,142,100 3,656,289 5,798,389 513,368 876,254 1,389,622 2011 2,165,210 3,845,539 6,010,749 571,669 1,015,316 1,586,985 2012 2,838,986 4,105,171 6,944,157 738,183 1,067,412 1,805,595 2013 2,879,909 4,271,187 7,151,096 781,700 1,159,338 1,941,038 Source: International Trade Administration (2014)


### 2.2.3. **Vehicle Sales**  Estimates of U.S. light

- duty vehicle and light

- duty truck sales are presented in Table 11 . In 2010, sales by foreign manufacturers accounted for approximately 54% of the U.S. market of light

- duty vehicle sales; Japanese manufacturers decreased their market share to 38.8% in 2010, from 40.5% in 2009 while German manufacturers increased their market share from 7.3% to 7.6% and Korean manufacturers’ market share grew from 7.1% to 7.7% (International Trade Administration 2011). In 2013, foreign manufacturers’ share of U.S. vehicle sale s accounted for more than 59% of the U.S. market ( Association of Global Automakers 2014 b ).

Table 11 . U.S. Sales of Light

- Duty Vehicles and Trucks

Year Sales Light

- duty Vehicles Light

- duty Trucks Total 2005 7,667,066 9,288,400 16,955,466 2006 7,820,854 8,766,721 16,587,575 2007 7,618,413 8,399,807 16,018,220 2008 6,813,369 6,345,806 13,159,175 2009 5,400,890 4,940,454 10,341,344 2010 5,635,433 5,829,948 11,465,381 2011 6,089,422 6,603,650 12,693,072 2012 7,241,900 7,166,834 14,408,734 2013 7,585,800 7,946,200 15,532,000 Source: Ward’s Automotive Group (2011 & 2013), BEA (2014)



## 3. **Sector Background** 

MVAC s ystems have been in widespread production in the United States since the 1960s. As of 2012, more than 98% of pass enger vehicles sold in the United States are estimated to contain MVAC (ICCT 2012). This section provides an overview of MVAC use in light

- duty vehicles and trucks, including a description of the vehicle typesJune 22, 2015

21 and fleet estimates, and their historical refr igerant use. 

## Refrigerant Use in Motor Vehicle Air Conditioning
Historically, the light

- duty MVAC sector relied on the ODS refrigerant CFC

- 12 . Automobile manufacturers transitioned to the non

- ozone depleting alternative HFC

- 134a in the mid

- 1990s. HFC

- 134a, like its predecessor, is a potent greenhouse gas that contributes to climate change. HFC

- 134a , which has a GWP of 1,430 (IPCC 2007) is the predominant refrigerant used today , as illustrated in Figure 2

. Figure 2 : U.S. Light

- Duty Vehicle and Truck MVAC Refrigerant Use Over Time*

* “Other” includes <1% of the market consisting of a variety of blends. Source: EPA Vintaging Model 2014

. The overall decrease in consumption shown in Figure 2 has been driven by a couple of factors: EPA’s Vintaging Model is based on actual stock and sales of car s /trucks t hrough 2013, and there was a fairly significant drop in sales around 2008

- 2009 due to the U.S. and global recession. That coupled with modeled decreases in the HFC

134a MVAC light

- duty vehicle charge size in 2002 and again in 2007 contribute to the decreas es in refrigerant use seen in the figure. C harge size decreases also occur red for light

- duty trucks in 2003 and 2006. Estimates of conventional (ODS or HFC) MVAC charge size s from various sources are shown in Table 12

. The average lifetime of light

- duty vehicles and trucks in the United States is currently estimated to be 11. 5 years (Auto Care Association 2015)

. Table 12 . Average Light

- D uty Vehicle and Truck MVAC Charge Sizes for Conventional (ODS/HFC) Systems Refrigerant Charge Size (kg) Sources
0.6

- 0.8 ICCT (2012)
0.4

- 1.2 RTOC (2010)
0.4

– 0.8 EIA (2012 a )
0.77

- 0.95 EPA (2011 a ) - 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000

1985 1990 1995 2000 2005 2010 2015Refrigerant Use (MT)

CFC-12 HFC-134a HFO-1234yf OtherJune 22, 2015

22 Under the SNAP program, EPA has found acceptable, subject to use conditions, three MVAC refrigerants with low er GWP s : HFC

- 152a, hydrofluoroolefin (HFO)

- 1234yf, and carbon dioxide (CO 2 ) (R

- 744) . None of these alternatives deplete the ozone layer and all have significantly lower GWPs than CFC

- 12 or HFC

- 134a

. Table 13 shows the relative GWPs of these MVAC refrigerants and whether or not they are ozone depleting. Today, there are cars on the road that use CFC

- 12, HFC

- 134a, and HFO

- 1234yf.

Table 13 . Environmental impacts of MVAC refrigerants MVAC refrigerant GWP Ozone depleting?
CFC

- 12 10,900 Yes
HFC

- 134a 1,430 No
HFC

- 152a 124 No
HFO

- 1234yf 4 No
CO 2 (R

- 744) 1 No
Source: IPCC ( 2007 )
Transition away from HFC

- 134a to these climate

- friendly alternatives is likely being enhanced by the joint regulations promulgated by the EPA and Department of Transportation’s National Highway Traffic Safety Administration (NHTSA), which established GHG a nd fuel economy standards for light

- duty vehicles and trucks. As established by EPA’s Final Rulemaking for 2017

- 2025 Light

- Duty Vehicle Greenhouse Gas Emission Standards, vehicle manufacturers may earn credits toward meeting the GHG standards by improving air conditioning systems. Both direct and indirect credits are available. Credits can be earned directly by reducing emissions through improved leak control and/or use of a low er
- GWP refrigerant. Indirect credits can be earned through improvements to techn ologies that increase efficiency and result in decreased consumption of fuel to provide mechanical power to the MV AC system. The EPA regulations allows vehicle manufacturers to generate direct leakage credits of up to 13.8 and 17.2 g/mi CO 2 eq and indirect efficiency credits of up to 5.0 and 7.2 g/mi CO 2 eq for cars and trucks, respectively, towards compliance with the industry fleet

- wide average standard projected to be 163 g/mi CO 2 eq in model year 2025 ( 77 FR 62,624 ).

T ransition to climate

- friendly alterna tives has already begun in the U nited States based on these credits

. Transition is also occurring widely in the European Union (EU), prompted by the European Commission (EC) MAC Directive (2007/46/EC). The EC MAC Directive requires that, as of January 1, 2 013, 16 all new model type vehicles be sold with an MVAC refrigerant with a GWP no greater than 150 ; beginning January 1, 2017 this requirement will apply to all new vehicle sales.



## 4. **Climate**

**- Friendly Alternatives** 

This section summarizes information on climate

- friendly refrigerant alternatives for MVAC that have been found acceptable subject to use conditions under EPA’s SNAP program . This section also provides limited information

on other alternatives under development in the United States and globally

.

16 Originally, the EC Directive requiring all MVACs in new model vehicles to be sold with a GWP no greater than 150 was to be ef fective in 2011; however, this date was postponed to J anuary 1, 2013.June 22, 2015

23 Table 14

. Overview of Climate

- Friendly Alternatives Approved by SNAP Alternative SNAP Listing Status Global Use Status

HFC

- 152a • Acceptable subject to use conditions in 2008 • Prototype vehicles have been tested

• Under evaluation in secondary loop systems in

demonstration project in India

• No known use in light

- duty vehicles

HFO

- 1234yf • Acceptable subject to use conditions in 2011 • Used in several light

- duty vehicle models in the United States , Canada , and Europe

• M arket share increasing annually in the U nited

States

• Under evaluation in secondary loop systems in

demonstration project in India

CO 2 • Acceptable subject to use conditions in 2012 • Used outside the United States in buses

• No known use in light

- duty vehicles; under

evaluation by several European car manufacturers 

## HFC

**- 152a** 
While prototype vehicles have been tested with HFC

- 152a, and there was on

- going development as of 2010, no automobile manufacturers have adopted this refrigerant to date. According to ICCT (2012), however, at least one manufacturer reported that good engineering design could address technical barriers, though cost and efficiency would still present challenges to bring ing it to the market. According to the same report, other sources have indicated th at HFC

- 152a exhibits good cooling performance and cost, especially when incorporating the latest technological advancements; still, the system would require significant space in the engine compartment which would pose a challenge in many vehicle models tod ay. HFC

- 152a is currently under evaluation for use in a secondary loop system in a demonstration project in India funded by the Climate and Clean Air Coalition. The project will focus on evaluating the use of refrigerants in secondary loop systems in clima tes with long, hot, and frequently humid cooling seasons with high fuel prices (Andersen et al. 2015)

.

HFC

- 152a exhibits moderate flammability and is characterized as an A2 refrigerant by ASHRAE

. Under the 2008 SNAP listing, EPA established the following conditions for use: (1) Engineering strategies and/or devices shall be incorporated into the system such that foreseeable leaks into the passenger compartment do not result in R

152a concentrations of 3.7% v/v or above in any part of the free space inside the passenger compartment for more than 15 seconds when the car ignition is on, and (2) m anufacturers must adhere to all the safety requirements listed in the Society of Automotive Engineers (SAE) Standard J639, including unique fittings and a flammable re frigerant warning label as well as SAE Standard J2773 , “Refrigerant Guidelines for Safety and Risk Analysis for Use in Mobile Air Conditioning Systems.”


## HFO

**- 1234yf** 
The number of cars using HFO

- 1234yf globally is expected to exceed 2 million by the end of 2 014 (Automotive World 2014). DuPont, a producer of HFO

- 1234yf, has stated that 7 million vehicles are estimated to be on the road by year end 2015 (DuPont 2014) . Approximately 60 different light

- duty vehicle models designed to use HFO

- 1234yf in the U nited States and Europe are manufactured by 28 different vehicle brands (Honeywell 2014)

. In the U nited States , a number of vehicle models are sold with HFO

- 1234yf or will be within the 2015 model year , including the Cadillac XTS, Chevrolet Spark EV , BMW i3 and i8, Chrysler 200, Chrysler 300 , Dodge Challenger , Dodge Charger , Dodge Dart, Dodge Durango, Jeep Cherokee , Jeep Wrangler, Ram 1500, Fiat 500 and 500L, Alfa Romeo 4C, Honda Fit EV , Tesla Model S, Range Rover , Range Rover Sport( Crowell 2015; FCA 2015 )

.June 22, 2015

24 In 2014, Honeywell announced a supply agreement with Asahi Glass Company (AGC) Ltd. to increase production of HFO

- 1234yf in mid

- 2015, and they plan to construct a new production plant in Geismar, Louisiana (Automotive World 2014). In 2013, Arkema announced it s construction of a new HFO

- 1234yf production plant, which is anticipated to begin production in 2016 (Arkema 2013). HFO

- 1234yf is currently distributed in 40 counties, including the EU member states, the United States, Saudi Arabia, Turkey, Israel, and th e United Arab Emirates (DuPont 2014)

.
HFO

- 1234yf is mildly flammable, and is classified by ASHRAE as an A2L refrigerant. Under the 2011 SNAP decision and a March 2012 subsequent rule, EPA established two required use conditions for HFO

- 1234yf used in a ne w MVAC system for passenger cars and light

- duty trucks : (1) HFO

- 1234yf MVAC systems must adhere to all of the safety requirements of SAE J639 (adopted 2011), including requirements for a flammable refrigerant warning label, high

- pressure compressor cutoff switch and pressure relief devices, and unique fittings. For connections with refrigerant containers for use in professional servicing, use fittings must be consistent with SAE J2844 (revised October 2011). And (2) manufacturers must conduct Failure Mode a nd Effect Analysis (FMEA) as provided in SAE J1739 (adopted 2009). Manufacturers must keep the FMEA on file for at least three years from the date of creation. Under its Cooperative Research Program (CRP), SAE International found the risk of fire to be “ve ry small compared to the risks of a vehicle fire from all causes and well below risks that are commonly viewed as acceptable by the general public.”


## Carbon **Dioxide**
In March 2013, several German car manufacturers announced plans to develop MVACs using CO 2 (R

- 744) refrigerant, though light

- duty vehicles using CO 2 are not in production today (AMN 2013). CO 2 is in use in MVAC

s ystems in buses outside of the United States (EIA 2014)

. The use of CO 2 as a refrigerant in MVAC systems poses challenges due to its h igh operating pressure. The peak pressure of CO 2 operating systems is approximately 2,000 psi compared to 450 psi in HFC

- 134a systems (EPA & NHTSA 2012). The refrigerant’s energy performance has been questioned, with some studies claiming performance to be similar if not better than HFC

- 134a, and others reporting poorer performance at high ambient temperatures (EIA 2012 a , CARB 2011, ICCT 2012). EPA addresses these concerns in the Response to Comments Documents (EPA 2015)

. When EPA listed CO 2 acceptable for use in 2012, the SNAP program established the following conditions of use: (1) e ngineering strategies and/or mitigation devices shall be incorporated such that in the event of refrigerant leaks the resulting CO 2 concentrations do not exceed the STEL of 30 ,000 ppm averaged over 15 minutes in the passenger free space and the ceiling limit of 40,000 ppm in the passenger breathing zone; (2) OEMs must keep records of the tests performed for a minimum period of three years demonstrating that CO 2 refrigerant leve ls do not exceed the STEL of 30,000 ppm averaged over 15 minutes in the passenger free space, and the ceiling limit of 40,000 ppm in the breathing zone; and (3) the use of CO 2 in MVAC systems must adhere to the standard conditions identified in SAE Standar d J639 (EPA 2012b). 

## Other Alternatives (Not Currently Listed by SNAP) Additional alternatives are under development and/or in use outside of the U nited States ; h owever, these alternatives have not , to date, been listed as acceptable by the SNAP program. Ma ny of these are flammable. T he SNAP program prohibit s the use of flammable refrigerants in MVAC unless a particular refrigerant is specifically listed as acceptable subject to use conditions

. HFC

- 152a and HFO

- 1234yf are the only flammable refrigerants EPA has listed as acceptable subject to use conditions (Appendix B to subpart G of 40 CFR part 82).June 22, 2015

25 A range of unsaturated fluorocarbon blends have recently emerged as potential alternatives for refrigerants used in MVAC systems. While the majority of these a re still under development, unsaturated fluorocarbons have exhibited promising results thus far ; the use of blending may offer flexibility in overcoming technical and financial barriers. Two blends in particular, AC5 and AC6 (also classified as R

- 444A and R

- 445A, respectively) are under development. AC5 is a blend of 12% HFC

- 32, 5% HFC

- 152a, and 83% HFO

- 1234ze (by weight); AC6 is a blend of 6% CO 2 , 9% HFC

- 134a and 85% HFO

- 1234ze. The GWPs of AC5 and AC6 are 92 and 130, respectively (SAE undated).

AC5 is e xpected to have similar performance to R

- 134a and similar flammability characteristics to HFO

- 1234yf, whereas AC6 is expected to have a somewhat higher refrigeration capacity than HFC

- 134a and reduced flammability compared to HFO

- 1234yf (SAE undated). That said, both AC5 and AC6 have an A2L flammability rating under ASHRAE. SAE standards on AC6 are under development. To date, research has been conducted on the design and manufacture of prototype charging equipment using AC6 (PRWeb 2013); however, concerns e xist with the servicing and recovery of such zeotropic refrigerant blends because the blend composition varies with temperature and pressure during the refrigeration cycle (SAE 2013). Additional concerns include selective leakage of the CO 2 component of AC 6 due to its high pressure. A leakage model from SAE’s Cooperative Research Program shows there would be just a 5% performance loss if the CO 2 level dropped from 6% to 2% (SAE 2013).
The potential for use of hydrocarbons in MVAC systems is still being researched, and there is not yet agreement on its suitability. According to TEAP (2013), due to safety (flammability) concerns, use of hydrocarbons for MVACs in light

- duty vehicles and trucks is not anticipated to receive support from any car company and w ould remain marginal. Hydrocarbons have the highest flammability rating given by ASHRAE, A3. Some sources report that certain hydrocarbon refrigerants could have benefits due to their relatively low charge size (e.g., 200

- 300 g), higher cooling performance , and higher coefficient of performance (COP) than HFC

- 134a and HFO

- 1234yf (Obrist Engineering 2011; Greenpeace 2012). According to Expert Group (2013), a consulting firm in Australia, hydrocarbons are currently used in about 8% of MVAC systems in passenge r and light commercial vehicles in Australia. As previously mentioned, the SNAP program has listed all flammable refrigerants as unacceptable for use in MVAC systems , unless specifically exempted. To date, EPA has not yet received sufficient information on any hydrocarbon refrigerant to find their use acceptable in MVAC.June 22, 2015

26 

# The U.S. Commercial Refrigeration **Industry**

**1. Introductio**  **n** Commercial refrigeration systems historically relied on synthetic ODS refrigerants

— namely, CFCs and HCFCs

— both of which deplete the stratospheric ozone layer and contribute to climate change. The U.S. commercial refrigeration market transitioned away from ODS in response to the 1996 phase out of CFCs and the on

- going phaseout of HCFCs . The transition was primarily to HFCs, which are not ODS but typically have high GWP s

. Today, low er
- GWP alternatives , discussed below, have entered or are expected to enter the U.S. market, facilitated by acce ptability listings under EPA’s SNAP program.
The remainder of this chapter characterizes the portions of the U.S. commercial refrigeration sector affected by this final rule in terms of market size, historical and current refrigerant use, and the availabi lity of alternative refrigerants.



## 2. **Market Characterization**

I t is estimated that in 2013 over 6 million commercial refrigeration systems 17 were in use in the United States. In addition, it is estimated that roughly 600,000 new systems were sold into the mark et ( DOE 2009 ). Since the purpose of this document is to characterize refrigeran t use in commercial refrigeration applications affected by this rulemaking , only systems and/or components that directly contain refrigerant are discussed, and only the manufact urers of such equipment are identified. 18 Also, only end

- users of systems that are most likely to be retrofitted with a different refrigerant at some point during the lifetime of the equipment are included

. 19 

## Overview of Commercial Refrigeration Systems
Commercial refrigeration systems include reach

- in refrigerators and freezers, beverage coolers, food service equipment, packaged walk

- in food storage equipment, refrigerated vending machines, ice makers, water coolers, soda fountains/beer dispensers, remot e condensing units, and supermarket (i.e., rack) systems , and an overview of each of these systems is provided in the sections that follow

. Because ice makers, very low temperature refrigerators and freezers, water coolers, and soda fountains/beer dispense rs are not affected by this rulemaking, they are not characterized in this document

. Commercial refrigeration systems generally can be categorized into two groups: stand

- alone (i.e., self

contained) 20 and remote refrigeration systems. Self

- contained systems integrate all components within their structure, while remote refrigeration systems consist of various components that are linked through a refrigerant piping network, such as supermarket rack systems and remote condensing units.

17 Excludes ice machines and refrigerated vending machines.

18 Manufacturers of display cases and walk

- ins that are connected to a rack system are excluded from this discussion since the choice of the refrigerant used in such equipment is determined by the rack system owner or operator

. 19 Systems that are more likely to be retrofitted include remote condensing unit systems and rack systems.

20 The terms stand

- alone and self

- contained are used interchangeably in this documen t.June 22, 2015

27 

### 2.1.1. **Reach**

**- In Refrigerators/F**  **reezers and Beverage Coolers** 
Reach

- in refrigerators and freezers and beverage coolers are self

- contained systems with the refrigeration system located within the unit. These systems are commonly used in convenience stores , small markets, specialty stores, bars, and restaurants as well as in large supermarkets in spaces that are not easily accessible to the rack system refrigerant lines or when movability of the system is desired

. These systems are often characterized by their operating tem perature (e.g., medium vs. low), door type (e.g., transparent, solid, without), and orientation (e.g., horizontal, semivertical, vertical). Example images of these systems are provided in Figure 3 below.
Figure 3 . Example Images of Reach

- In and Beverage Coolers (DOE 2009)



### 2.1.2. **Food Service Equipment** Refrigerated food service equipment is a type of self

- contained system used to maintain the temperature of food products prior to and while serving them in foodservice settings (DOE 2009). Such equipment is predominantly found in restaurants, hotels, convenience stores, supermarkets, schools, and other facilities where food is served. Common cate gories of equipment include preparation tables, worktop tables, and buffet tables. Example images of food service equipment are provided in Figure 4

. Figure 4 . Example Images of Food Service Equipment (DOE 2009)



### 2.1.3. **Packaged Walk** 

**- In Food Storage Equipment** 
Walk

- in food storage equipment (i.e., packaged walk

- in refrigerators and freezers) are another type of self

contained unit that is commonly used in convenience stores, cafeterias, florists, restaurants, and bars. Larger in both size and capacity than reach

- in coolers, such units are generally located outside of the sales area and only accessible to equipment owners and store emplo yees via an access door. These units generally consist of a large, heavily insulated box with a dedicated refrigeration system that is mounted either on the roof or wall of theJune 22, 2015

28 insulated room and is configured such that the condenser has access to the outs ide of the room and the evaporator has access to the inside of the room (DOE 2009). These units are classified as self

- contained (stand

alone) because they are pre

- charged, shipped as a single package , and are ready to operate upon connection to a power su pply. I n 2008 there were approximately 755,000 walk

- in coolers and freezers in use in the United States , including both packaged units and built

- up systems that use a remote condensing unit (as discussed in Section 2.1.5 ) (DOE 2009)

. Example images of packaged walk

- in coolers and freezers are provided in Figure 5

. Figure 5 . Example Images of a Packaged Walk

- in with a Mounted Refrigeration System (DOE 2009)



### 2.1.4. **Refrigerated Vending Machines** Refrigerated vending machines are another type of self

- contained system used to sell a variety of products, including cold drinks in cans or bottles, ice cream, milk, cold drinks in cups, and perishable food items (e.g., prepared sandwiches). Hot beverages may also be provided via a heat

- pump or through recycled waste heat from the refrigeration cycle, particul arly for dual hot/cold beverage vending machines (Fuji Electric 2003; Coca

Cola 2015)

. Vending machines are predominantly located in offices, numerous types of public locations, and plants and factories (DOE 2009). In 2008 there were approximately 3.8 mill ion vending machines in use in the United States (DOE 2009). Example images of refrigerated vending machines are shown in Figure 6 below.
Figure 6 . Example Images of Refrigerated Vending Machines (DOE 2009 ; AMS 2015 )



### 2.1.5. **Remote Condensing Units** 

R emote condensing units are a type of remote commercial refrigeration system that are commonly used in convenience stores, drug stores, hotels, cafeterias, specialty food stores, restaurants, and bars to cool a walk

- in or row of reach

- ins

. They may also be used in supermarkets to cool walk

- ins that are not otherwise connected to the rack system. They consist of one or two compresso r s and a condenser assembled into a modular system, which is then connected to a unit cooler located inside a walk

- in or to a row of reach

- ins

. In most cases , the remote condensing unit is located on the building rooftop or outside at ground level (DOE 200 9). While s imilar in size and function to packaged (i.e., self

- contained) walk

- in food storage equipment (see Section 2.1.3 above),June 22, 2015

29 remote condensing units are assembled and charged on

- site before going into operation. I n 2008 there were approximately 755,000 walk

- in coolers and freezers in use in the United States , including both packaged units (as discussed in Section 2.1.3 ) and built

- up systems that are cooled by a remote condensing unit (DOE 2009)

. Example images of remote condensing units are provided below in Figure 7

. An example image of a unit cooler that might be placed inside a walk

- in room is provided in Figure 8

. Figure 7 . Example Image of an Outside Remote Condensing Unit (DOE 2009; Master

- Bilt 2014)

Figure 8 . Example Image of a Typical Walk

- In Unit Cooler (DOE 2009)



### 2.1.6. **Supermarket Rack Systems**  Supermarket (i.e., rack) systems are a type of remote commercial refrigeration systems that are most commonly used in large retail food operations (hence the name “supermarket systems”) including warehouse clubs and superstores. They are custom designed an d complex to install, and consist of racks of multiple compressors and other components that are connected to a remote condenser and linked to display cases, reach

- ins, and walk

- ins through a piping network. They come in a variety of designs including cent ralized, distributed, indirect, and cascade. 21 These s ystems can also be designed to additionally provide air conditioning , for example , in offices and break rooms located in a supermarket. About 37,500 supermarkets in the United States in 2013 (FMI 2014) p lus an additional 11,000 supercenters, warehouses, and other retail food stores are assumed to use one or
more rack system s to meet their cooling needs (EPA Vintaging Model 2014)

. The key components of a rack system

— which include compressor racks, condense rs, display cases, and walk

- ins

— are discussed in more detail below.


### Condensers Typically located outside, the condenser is a part of the refrigeration system that transfers heat from the refrigerant to the su rrounding air or a water supply

. Air

- cooled cond ensers are more commonly used in supermarket rack systems, although water

- cooled condensers and evaporative condensers may also be applied.

21 See http://www2.epa.gov/greenchill/advanced

- refrigeration for descriptions of commonly used system designs.June 22, 2015

30 According to the DOE (2009), a typical supermarket has one condenser per refrigeration circuit, or four condensers p er supermarket. An example of an air

- cooled condenser is shown below in Figure 9

. Figure 9 : Example Image of a Condenser (Heatcraft 2013)



### Compressor Racks Compressor racks are configurations of paralleled

- connected compressors commonly located in a machinery room. It is estimated that supermarkets use on average four compressor racks with three to five compres sors per rack (DOE 2009). Example images of compressor racks are provided below in Figure 10

. Figure 10 : Example Images of a Compressor Rack ( DOE 2009; Hillphoenix 2013)



### Display Cases Display cases that are part of a rack system are used in supermarkets and other retai l food establishments to attractively display food or beverages to consumers. Similar to reach

- in refrigerators and freezers, display cases vary by temperature and orientation. Example images of display cases are provided below in Fig ure 11

. Figure 11 . Example Images of Display Cases (DOE 2009 )



### Walk

**- In Coolers and Freezers** 
Walk

- in coolers and freezers are large, insulated refrigerated spaces with access doors large enough for people to enter. Walk

- ins are used for food storage and merchandising in the food service and food sales applications. While some walk

- ins are cooled b y a remote condensing unit, either mounted on the unit or located outside (asJune 22, 2015

31 discussed in sections 2.1.3 and 2.1.5 , respectively), walk

- ins that are found in supermarkets are generally connected to and cooled by the rack system. A report developed for the DOE (2009) estimates that in 2008 there were 245,000 walk

- in coolers a nd freezers in use in the United States that are cooled by a supermarket rack system. With annual sales estimated at 10,000 and accounting for systems reaching end

- of

- life , it is estimated that in 2013 there were 250,000 systems in use. An example image of merchandising doors open to the sales floor that would be placed on one side of the walk

- in room, is provided in Figure 12 . An example image of a unit cooler that mig ht be placed inside a walk

- in room is provided above in Figure 8

. Figure 12 . Example Image of a Walk

- In with Merchandising Doors (DOE 2009 )



## Equipment Manufacturers
Leading manufacturers of self

- contained systems and remote refrigeration systems are summarized in Table 15 below. 22 Since remote systems ar e installed on

- site and are made up of numerous components that are often manufactured separately , the manufacturers of remote systems that are specified in the table may actually only manufacturer one or more component of such systems. In contrast, since self

- contained systems are pre
assembled, only manufacturers that sell fully assembled self

- contained systems are specified in the table; companies that manufacture only components of self

- contained systems are not included

. Manufacturers were identified based mainly on information gathered by DOE (2013a; 2013b; 2009) and comments received on the NPRM. Since a different set of companies manufacture vending machines than other self

- contained systems, vending machine manufacturers are designated separately i n Table 15

. Table 15 : Manufacturers of Commercial Refrigeration System s by Type

Company Name a Self

- Contained Systems Remote Systems b Reach

- Ins, Beverage Coolers, Food Service Equipment , Packaged Walk

In Food Storage Equipment Vending Machines Aladdin Temp

- Rite X Arctic Air X Arctic Star X Arneg USA X Automat ed Merchandising Systems, Inc. X Bally Refrigerated Boxes X Beverage

- Air XJune 22, 2015

32 Company Name a Self

- Contained Systems Remote Systems b Reach

- Ins, Beverage Coolers, Food Service Equipment , Packaged Walk

In Food Storage Equipment Vending Machines

Bitzer X Carlyle X Century Refrigeration X Continental Refrigerat or X Copeland X Crown Tonka X Cubigel X Danfoss X Delfield X Dixie

- Narco X Duke Manufacturing X Edina Technical Products X Federal Industries X Heat Transfer Products Group DBA Russell X Hillphoenix X X Howard/McCray X Howe Corporation X Hoshizaki America X X Hussmann X X InterMetro Industries X KeepRite X Kelvinator X Killion Industries X Kolpak X Krack X Kysor/Warren X McCall Refrigeration X Master

- Bilt Products X X Multi

- Max Vending X Northland Refrigeration X Parker

- Hannifan X Peerless of America, Inc. X Randell X RPI Industries, Inc. X Royal Vendors X SandenVendo America X X Sanyo X Scotsman X Seaga Manufacturing X X Secop X Silver King X So

- Low XJune 22, 2015

33 Company Name a Self

- Contained Systems Remote Systems b Reach

- Ins, Beverage Coolers, Food Service Equipment , Packaged Walk

In Food Storage Equipment Vending Machines
Southern Case Arts X Structural Concepts Corp. X Sub

- Zero X Tecumseh X Thermal

- Rite/International Cold Storage X X Tor Rey Refrigeration X Traulsen X Trenton Refrigeration Products X True Manufacturing X Turbo Air X Unilever X Victory Refrigeration X Wittern Group X Zero Zone X X

a The companies listed do not necessarily represent an inclusive list of all manufacturers of commercial refrigeration systems in the United States

. Parent companies are not listed due to frequent consolidations and other acquisitions.
b Includes manufacturers of components of remote systems, such as compressors, compressor racks, condensers and condensing unit s. Source s : DOE (2013a); DOE (2013b); DOE (2009) ; comments on NPRM available at regulations.gov in docket EPA

- HQ

- OAR

- 2014

- 0198 

## Eq **uipment Owners Performing System Retrofits**
As previously mentioned, some commercial refrigeration systems

— including remote condensing unit systems and rack systems

— have the potential to be retrofitted with a different refrigerant mid

- way through the ir life time. The decision to retrofit a system is generally made by the owner or operator of the equipment. Refrigerant retrofits do not typically take place unless at least one component of the system (e.g., a remote display case or condenser) needs to be replac ed or upgraded. Due to the cost of retrofitting relative to purchasing a new self

- contained system or vending machine, it is assumed that retrofits are not performed on those systems. While remote c ondensing unit system s are more likely to be retrofitted, they are only commonly retrofitted if there is an economic incentive to do so. Similarly, supermarkets are most likely to retrofit their rack systems if there is a financial benefit for doing so. Such retrofits are common today as the industry phases out H CFCs, particularly HCFC

- 22. Recovered HCFC

- 22 from retrofitted or retired systems is commonly used by supermarkets to service their other HCFC

- 22 equipment. As the availability of HCFC

- 22 decreases, the incentive to retrofit or replace HCFC

- 22 systems will increase for some companies. However, the actual impact of future HCFC

- 22 supplies on retrofit activity is uncertain due to variation in the refrigerant use profiles and specific circumstances of individual companies.



## 3. **Sector Background Refrigerant Use**  **in Commercial Refrigeration** 
Commercial refrigeration systems have historically relied on synthetic refrigerants including CFCs, HCFCs, HFCs, and blends of these chemicals sometimes mixed with small portions of hydrocarbons. Today, although less
common, non
- fluorinated alternatives are additionally in use in the commercial refrigeration sector (e.g.,June 22, 2015

34 ammonia, carbon dioxide, and hydrocarbons). Unsaturated HFCs (i.e., HFOs as well as HFOs blended with other refrigerants) are also being tested and are expected to enter the market soon.
A summary of the commonly used, non
- ODS refrigerants listed as acceptable under SNAP for commercial refrigeration systems characterized in this document is provided below in Table 16 , presented in order from largest to smallest GWP. Some refrigerants are generally used only in new equipment (denoted by “N” in the table), while other refrigerants are generally used only as a r etrofit refrigerant (i.e., a refrigerant used to replace a different refrigerant in existing equipment) (denoted by “R” in the table). As shown, some refrigerants are used in both new equipment and as a retrofit in existing equipment.

Table 16 : Non

- ODS Refrigerants Commonly Used in Commercial Refrigeration by Equipment Type

Refrigerant GWP * Equipment Category * *

Stand

- Alone Remote Condensing Units Supermarket Rack Systems R

- 507A 3,985 N N N, R R

- 404A 3,922 N N N, R R

- 422A 3,143 R R R

- 422D 2,729 R R R

- 422B 2,526 R R R

- 438A 2,264 R R R

- 427A 2,138 R R R

- 407A 2,107 N, R N, R R

- 407F 1,825 N, R N, R R

- 407C 1,774 N, R N, R HFC

- 134a 1,430 N N N R

- 290 3.3 N R

- 744 1 N N N

* GWPs from IPCC (2007)

* * R = used as a retrofit; N = used in new equipment. These designations are based on common use, not SNAP listing status. Source: Based on RTOC (2011) and GreenChill Partnership Data (2013)

. Although there are significantly fewer remote refrigeration systems (i.e., conden sing unit s and rack systems) in the market relative to self

- contained systems, the majority of refrigerant consumed in the United States in commercial refrigeration is used to charge or refill remote refrigeration systems.



### 3.1.1. **Stand**

**- Alone**  **Systems** As previousl y discussed, the types of stand

- alone ( self

- contained ) systems characterized in this report include reach

- in refrigerators and freezers, beverage coolers, food service equipment, packaged walk

- in food storage equipment , and refrigerated vending machines. T hese systems historically used refrigerants CFC

- 12 and HCFC

22. Today, HFC

- 134a is the most commonly used refrigerant in self

- contained systems, with R

- 404A also commonly used in low temperature applications (e.g., freezers, ice machines) and some high

- cap acity systems. Propane (R

- 290) and to a lesser exten t isobutane (R

- 600a) have recently started to be used in retail food self

contained refrigerators and freezers (e.g., reach

- in refrigerators and freezers, and beverage coolers), following listing by SNAP as being acceptable subject to use conditions in December 2011 and April 2015. R

- 744 (c arbon dioxide , CO 2 ), which was listed as acceptable under SNAP for use in retail food refrigeration in September 2009, is currently used in beverage coolers. More recently, R

- 744 has started to be used in vending machines,June 22, 2015

35 following SNAP listing in 2012. A summary of the OD S substitute refrigerants commonly used today in self

contained systems, along with their corresponding estimated charge size, is provided below in Table 17

. Table 17 : Non

- ODS Refrigerants Typically Used in Self

- Contained Systems by System Type

System Type Refrigerants Typical Charge Size Range (kg) a Reach

- In Refrigerators and Freezers HFC

- 134a, R

- 404A, R

- 290 0.2

– 3.0 Beverage Coolers HFC

- 134a, R

- 290, R

- 744 0.2

– 3.0 Food Service Equipment HFC

- 134a, R

- 404A, R

- 290 0.2

– 3.0 Packaged Walk

- In Food Storage Equipment R

- 404A 0.8

– 1.3 Vending Machines HFC

- 134a, R

- 404A, R

- 744 0.2

– 3.0

a Charge size is influenced by both the system capacity and the refrigerant type. Source: RTOC (2011); EPA (2010 d ) ; Heatcraft (2004)

. Due to their small charge size, the amount of refrigerant used to fill new self

- contained equipment represents a small por tion of total refrigerant consumed by the commercial refrigeration sector.
Although HFCs continue to dominate the market, this trend is starting to change for equipment types that may now use R

- 290 (e.g., reach

- in refrigerators and freezers, beverage cool ers, and food service equipment) and R

744 (e.g., beverage coolers and vending machines)

. For example , Unilever and Ben & Jerry’s installed R

- 290 ice cream freezers (i.e., reach

- in freezers) in 21 stores in the United States in 2009 and announced plan s to install 700 more units in 2012. As of 2012, PepsiCo had also installed 35 R

- 290 beverage coolers across North America. Additionally, many supermarket chains, including Fresh & Easy and H

- E

- B, have deployed self

- contained R

- 290 units. Coca

- Cola has committed to installing only HFC

- free equipment beginning in 2015 and as of 2014 had already installed over one million HFC

- free units globally (including beverage coolers and vending machines)

— the majority of which use R

- 744.



### 3.1.2. **Remote Refrigeration Systems** As previously discussed, remote commercial refrigeration systems can be categorized into remote condensing unit systems and supermarket rack systems. Similar to self

- contained systems, remote refrigeration systems historically used CFC

- 12, HCFC

- 22, and so me ODS blends (e.g., R

- 502, R

- 401A, R

- 402A, and R

- 408A). Today, new remote systems largely rely on HFCs although both HFCs and many ODS refrigerants still remain in use in existing equipment. Ammonia (R

- 717) and carbon dioxide (R

- 744), both of which are ac ceptable under SNAP for use in large retail food equipment, are also used and gaining market share. A summary of non
- ODS refrigerants currently used in remote condensing unit and supermarket rack systems is provided below in Table 18

. A more detailed description of refrigerant use by system type is provided in the sections that follow.

Table 18 : Non

- ODS Substitute Refrigerants Used in Remote Refr igeration Systems by System Type

System Type Refrigerants in Use Typical Charge Size Range (kg) a

Remote Condensing Unit Systems HFC

- 134a, R

- 404A, R

- 407A, R

- 407C, R

- 407F, R

422A, R

- 422B, R

- 422D, R

- 427A, R

- 438A, R

- 507A 0.5

– 20

Supermarket Rack Systems HFC

- 134a, R

- 404A, R

- 407A, R

- 407C, R

- 407F, R

422A, R

- 422B, R

- 422D, R

- 427A, R

- 438A, R

- 507A, R

- 717, R

- 744 300

– 1,800

a Charge size is influenced by the system capacity, system design, and the refrigerant type.June 22, 2015

36 Sources: RTOC (2011); EPA (2010 d ); Gre enChill Partnership Data (2013).



### Remote C **ondensing Units** Remote condensing units historically used HCFC

- 22. While many HCFC

- 22 systems still remain in use today, newly manufactured systems primarily use R

- 404A or HFC

- 134a. Other HFC blends

— including R

- 407A , R

- 407C , R

- 407F, and R

- 507A

— are also available. Remote condensing units may be retrofitted but retrofits are generally only done if the system is experiencing high leakage and the cost of replacing the leaked refrigerant is high. In such cases, an R

- 407 s eries or R

- 422 series refrigerant is most commonly used, although other retrofit refrigerants (e.g., R

- 427A, R

- 438A) are also available. 

### Supermarket **Rack Systems** Supermarket rack systems historically used CFC

- 12, R

- 502, HCFC

- 22, and other HCFC blends in a centralized design. While many of these systems remain in use today, some have been retrofitted to replace the ODS refrigerant with an HFC blend (e.g., R

- 404A, R

- 422A , R

- 422B, R

- 422D , R

- 427A, R

- 438A, R

- 507A) . For newly manufactured systems , HFC refrigerants (e.g., R

- 404A, R

- 507A, R

- 407A, R

- 407C, R

- 407F) dominate the market.
Many of the newly manufactured systems additionally employ alternative designs such as secondary loop systems, which use secondary fluids , such as R

- 744 or glycol to ind irectly cool the refrigerated space, allowing for a relatively low HFC charge size. Another alternative design is a cascade system, which consists of two independent rack systems that share a common cascade heat exchanger which allows for the use of R

- 744 on the low temperature side. While an HFC is most commonly used as the refrigerant on the high temperature side, it is also feasible to use other refrigerants, e.g. R

- 717 , on the high temperature side , thereby eliminating the use of the HFC.
In 2012, the f irst R

- 717/R

- 744 cascade system was installed in the United States in an Albertsons supermarket in Carpinteria, California. This milestone was followed in 2013 by the installation of the first 100% CO 2 (R

- 744)

- based rack system in a Hannaford supermarket i n Turner, Maine. This system is a transcritical CO 2 system, in which CO 2 is used as the primary refrigerant and operate s at a high pressure to accommodate the low critical temperature of CO 2 . Additional transcritical CO 2 systems have been installed in a Walgreens store in South Evanston , Illinois; a Whole Foods Market in Brooklyn, New York; a Whole Foods Market in Berkeley, California; a Whole Foods Market in San Jose, California; a Kroger in Holland, Ohio; a Sprouts stor e in Dunwoody, Georgia; and a Pick ‘n Save supermarket in Menomonee Falls, Wisconsin . Installation of new supermarket rack systems that use R

- 744 and possibly R

- 717 as the primary refrigerant are expected to continue to grow in the United States. For examp le, the Lackland Air Force Base Commissary in San Antonio, Texas is currently in the process of replacing its old refrigeration system with an R

- 717/R

- 744 cascade system. This system is expected to go into operation in the summer of 2015.



## 4. **Climate**

**- Friendly**  **Alternatives**
Although not a significant portion of the market today, a variety of climate

- friendly refrigerant alternatives (e.g., hydrocarbons, CO 2 , ammonia, and HFOs (often blended with HFCs) ) are available for use or expected to be available for use in the near

- term in each of the commercial refrigeration system type s described in this document

. Table 19 below summarizes the status of low er
- GWP alternatives in the United States by system type.June 22, 2015

37 Table 19 : Overview of Status of Climate

- Friendly Alternatives by System Type

System Type Hydrocarbons CO 2 Ammonia HFOs and HFC /HFO Blend s Stand

- Alone (i.e., Self

- Contained ) Units: Reach

- In Refrigerators and Freezers, Beverage Coolers, Food Service Equipment , and Packaged Walk

- In Food Storage Equipment • Acceptable under SNAP subject to use conditions ( 2011; 2015 )

• Gaining market

share in the United States

• Commonly used

outside the United States • Acceptable under SNAP (20 09)

• Used in glass

- door

beverage coolers • Acceptable under SNAP (19 96) with a secondary loop; no known use • R

- 450A acceptable under SNAP (20 14)

• R

- 513A acceptable

under SNAP (20 15)

• R

- 448A acceptable

under SNAP for low

temperature equipment (20 15)

• R

- 449A acceptable

under SNAP for low

temperature equipment (2015) Vending Machines • Acceptable u nder SNAP (20 15)

• Used outside the

United States ; limited test ing in the United States • Acceptable under SNAP (20 12)

• Gaining market

share in the United States • Not acceptable under SNAP; no known use • R

- 450A acceptable under SNAP as retrofit (20 14) and for new equipment (20 15)

• R

- 513A acceptable

under SNAP (20 15)
Remote Condensing Units • Not acceptable under SNAP; no known use • Acceptable under SNAP (20 09)

• Used outside the

United States • Acceptable under SNAP (19 96) with a secondary loop

• Used historically in

industrial applications but not currently used commercially • R

- 450A acceptable under SNAP (20 14)

• R

- 513A acceptable

under SNAP (20 15)

• R

- 448A acceptable

under SNAP (20 15)

• R

- 449A acceptable

under SNAP (2015)June 22, 2015

38 System Type Hydrocarbons CO 2 Ammonia HFOs and HFC /HFO Blend s Supermarket Rack Systems • Not acceptable under SNAP: no known use • Acceptable under SNAP (20 09)

• First 100% CO 2

system installed in the U nited S tates in 2013

• Commonly used

outside the United States

• Also used in

secondary loop systems or cascade designs in the United States • Acceptable under SNAP (19 96) with a secondary loop

• First system installed

in the United States in 2012 • R

- 450A acceptable under SNAP (20 14)

• R

- 450A in use in a

supermarket in Spain

• R

- 513A acceptable

under SNAP (20 15)

• R

- 448A acceptable

under SNAP (20 15)

• R

- 449A acceptable

under SNAP (2015)June 22, 2015

39 

# The U.S. Foams **Industry**

**1. Introduction** 
Foams are plastics (such as polyurethane or polystyrene) that are manufactured using blowing agents to create bubbles or cells in the material's structure. The foam plastics manufacturing industries, the markets they serve, and the bl owing agents used are extremely varied. Foams are used as insulation in a range of equipment and products, including refrigerated appliances (e.g., household refrigerators and freezers, laboratory and medical equipment, commercial refrigeration equipment), refrigerated trucks (“reefers”) and other refrigerated transport systems, buildings (e.g., walls, roofs, floors), and pipes. Foams are also used to provide buoyancy (e.g., flotation devices, boat frames), and as cushioning in products, (e.g., steering whe els, furniture, shoes).
Historically, a variety of CFC s and HCFC s have been used as foam blowing agents because of their favorable chemical properties. Used in the production of foam, certain blowing agents may lead to environmental damage when released t o the atmosphere at the time of foam manufacture, during product use, and/or at product disposal. In particular, CFC and HCFC blowing agents deplete the ozone and have very high GWPs. HFCs, which have more recently been adopted in the U.S. market to replac e CFCs and HCFCs , also have high GWPs but do not damage the ozone layer. Other blowing agents that are both ozone

- and climate

- friendly have also been used and are increasingly being adopted.
The remainder of this chapter characterizes the U.S. foams sect or in terms of market size and companies , historical and current blowing agent use, and the availability of climate

- friendly alternatives.



## 2. **Market Characterization**
This section provides an overview of foam types and end

- uses, and the foams market today. Additional general sector information on the market size, sales, and employment is also provided, as available. 

## Overview of Foam Types and End

**- Uses** 

Foams are characterized as “closed

- cell” or “open

- cell.” Closed

- cell foams have completely enclosed/discret e cells which encase the blowing agent used to create the cells during the foam production process; as a result, the blowing agent remains intact in the foam product (with only small amounts emitted during the production process) and is slowly emitted over the product lifetime and at or after (i.e., post

- life emissions) disposal (if not properly recovered and destroyed). Conversely, in open

- cell foams, each cell is connected to another cell and is not completely enclosed; thus, most or all blowing agent is emitted during the manufacture/production of the foam

- containing product. Closed

- cell foams are generally used in insulating and buoyancy applications, whereas open
- cell foams are most often used in cushioning applications.
Foams can also be classified by the primary polymer used in production. Specifically, there are four foam types that have traditionally relied upon ODS, as described below.

• Polystyrene foam is the largest foam market in the United States, based on revenue. This foam type is estimated to represent approximately 52% of the revenue generated from all foam manufacture. 23 In

23 Based on the 2012 data presented in IBIS (2012a) and IBIS (2012b). See details in Section 2.2.2

.June 22, 2015

40 terms of quantity of foam generated, however, polystyrene is second to polyurethane, and represents approximately 30% of all foam (BCC Research 2010). Polystyrene foam is categorized as either “extruded” or “expanded,” based on how it is manufactured. Extruded polystyrene (XPS) foam is manufactured by an extrusion process at elevated temperatures, which offers improved thermal properties. XPS includes boardstock (or ‘board’ ), billet, and sheet foam; board and billet foam is often manufactured for construction applications, although XPS billet is also manufactured for buoyancy and insulating pipe applications. Sheet foam is typically manufactured for packaging purposes with t hermal requirements. Expanded polystyrene is blown from beads of polystyrene which contain a blowing agent (typically a hydrocarbon such as pentane for extruded sheet foam, and a hydrocarbon or a hydrofluorocarbon for extruded boardstock). The beads are bl own into hot moulds to create blocks and moulded shapes, typically for packaging applications.

• Polyurethane generates less revenue than polystyrene foam but represents 52% of the total quantity of foam generated by weight (BCC Research 2010). The technolo gy was developed in the early 1930s and has since been the predominant foam type due to its versatility. Polyurethane foams can be formulated to achieve a range of properties (e.g., density, resilience) for different applications; it can be flexible or rig id. Rigid polyurethane foam is most often used in insulating applications, which represents the most significant use of this foam type. Rigid polyurethane spray foam used in construction insulation applications can be further characterized into three disti nct categories: (1) high

- pressure two component foam, (2) low

- pressure two

- component foam, and (3) one component foam (OCF). Flexible foams are most often used in non

- insulating applications, specifically in the furniture industry and the automotive indust ry. Polyisocyanurate is chemically similar to polyurethane and is used in some of the same rigid thermal applications, and thus is often grouped with polyurethane foam. While it is less resilient than polyurethane, polyisocyanurate does offer improved fire performance and greater rigidity.

• Polyolefin foam represents less than 10% of the foam manufactured in the United States by weight (BCC Research 2010). Polyolefin foam is a polymer produced from a simple olefin. The two most common polyolefin foams are p olyethylene and polypropylene, taken from the name of the olefin used to produce them: ethylene or propylene. Polyolefin foams have similar properties to XPS foam and are generally used in similar applications. This foam type, however, offers additional re silience which often makes it the foam type of choice in packaging applications.

• Phenolic foam accounts for less than 10% of all foam manufactured in the United States by weight (BCC Research 2010). This type of foam is very rigid, typically more so than polyurethane or polyisocyanurate. This foam type includes insulation board and bunstock, or ‘blocks.’ The rigidity characteristic of phenolic foams has historically made them unacceptable where vibration or thermal shock is a consideration. However, more r ecent developments have led to improved resilience, fire performance, as well as the best thermal performance of all foam types. This foam type is commonly used in insulating applications, specifically pipe sections, walls, roofs, and cold stores.

Table 20 summarizes the foam types and common application.June 22, 2015

41 Table 20 : Foam Types and Applications

Foam Type Product Type Open
or Closed

Cell Insulating Applications Non

- insulating ApplicationsDomestic AppliancesCommercial AppliancesPipe SectionWall and Door/ Window FramesFloorRoofTransportationCold StoresTransportationFurniturePackagingBuoyancyShoe Soles

Polyurethane Boardstock (includes polyisocyanurate) (rigid) closed √ √ √

Appliance(rigid) closed √ √ Spray (rigid) closed √ √ √ √ √ √ Slabstock (rigid) closed √ √ √ √ √ √ √ Continuous and Discontinuous Block (rigid) closed √ √ a √ √ √ b √ a

Injected / Pipe

- in

Pipe (rigid) closed √

Continuous and Discontinuous Sandwich Panel (rigid) closed √ √ √ √

One Component Foam (OCF) open √

Slabstock and Moulded (flexible) open √ c √ √ √ √ Integral Skin (flexible) open √ √ √ √ Polystyrene Extruded Sheet closed √ Extruded Boardstock and Billet closed √ √ √ √ √ √ √ Expanded closed √ √ √ √ Phenolic Boardstock closed √ √ Panel closed √ √ √ Disk Block closed √ √ Polyolefin (polyethylene, polypropylene) Board closed √ √
Pipe closed √
Source: UNEP (2010a), Jeffs (2013).

a For continuous blocks only.
b For discontinuous blocks only.

c Acoustic insulation.June 22, 2015

42 

## Foam Market
For the purposes of this characterization , the foams market supply chain is divided into two separate groups: suppliers and systems houses. Suppliers produce the chemicals used in the manufacture of foams, which includes blowing ag ents and polyols, 24 while systems houses manufacture the foam. Large systems houses may purchase these chemicals from suppliers and then formulate their own blend of polyol and blowing agent and / or use additives, such as fire retardants, catalysts, and surf actants to produce foam that meets their product specifications. In contrast, small systems houses may purchase pre

- blended or “fully formulated” polyols from suppliers to produce foam in favor of simpler operating conditions. Spray foam, on the other hand , is created on a jobsite by combining equal volumes of two chemicals, commonly referred to as A

- side and B

side. A

- side is the isocyanate component of the foam while B

- side is a mixture of polyols, fire retardants, blowing agents, catalysts, and other add itives. These two chemicals react and expand at the point of application. A

- side is manufactured by suppliers, or chemical manufacturing companies, while the B

- side formulation is developed by systems houses (SPFA 2013). In addition, depending on the appli cation and the market, two

component spray foam can be applied either in a high

- pressure two

- component system using a liquid blowing agent and a high

- pressure pump, or in a low

- pressure two

- component system using a gaseous blowing agent that provides propu lsion in place of a pump.



### 2.2.1. **Blowing Agent and Polyol Suppliers** Companies known to supply blowing agents 25 in the United States include:

• Albemarle • Foam Supplies Inc.

• Arkema • Great Lakes

• Chevron Phillips • Honeywell

• Dow Chemical • Lambiotte & Cie

• Chemours • Mexichem

• Dyplast Products

• ExxonMobil • Plenco

• Solvay
Companies known to supply polyols to the foam manufacturing industry include Invista (formerly Kosa), Huntsman, and Dow Chemicals (ICF 2003b , UNEP 2010a)

. 

### 2.2.2. **System Houses**
Some of t he major system houses for polyurethane, polystyrene, and phenolic foams are summarized in Table 21 by foam type and market share

. Information on major foam system houses in the polyolefin market was not readily available.

24 A compound containing multiple alcoholic hydroxyl groups.
25 Foam blowing agents can be either chemical or physical blowing agents. The blowing agent suppliers listed here are for physic al blowing agents. SNAP program listings are for substitutes in types of foam that historically have used CFCs or HCFCs as physical blow ing agents.June 22, 2015

43 Table 21

. Major Foam System Houses Market Major Foam System Houses (% Market Share in 2012) Polyurethane Carpenter Co. (25.6%); Johnson Controls Inc. (25%); FXI Foamex Innovations (13.4%); Vitafoam Inc. (1.9%) Polystyrene Reynolds Group Ltd. (26.2%); Dart Container Corporation (18.8%); Solo Cup Company (5.9%); The Dow Chemical Company (4.8%) Phenolic Plenco (Plastics Engineering Company), Dyplast Products, Ashland, Borden Chemical, H.D. Fuller, Georgia Pacific, Resinoir, Sumitomo America, Triquest, and Vantico Source: IBIS (2012a), IBIS (2012b), and ICF internet research.

Polyurethane system houses include , but are not necessarily limited to, the following. The types of foam produced at these system houses include flexible, rigid and spray , with different systems houses specializing in some or all types of polyurethane foam

. 26

• Bayer (formerly PSI) • Iso Tech

• BASF

• Carpenter Co.

• Elliot Company

• Foam Supply Inc.

• FXI Foamex Innovations

• Gaco

• General Coatings • Huntsman

• Hydroseal

• Johnson Control Inc.

• NCFI

• SWD Urethane

• UCSC

• Utah Foam Products

• Vitafoam Inc. Source: ICF International (2003), Bayer (Undated), BASF (2010).

Manufacturers of XPS boardstock and billet include:

• BASF

• Dow • Owens Corning

• Kingspan (formerly Pactiv Building Products) 

## Foam Sector Revenue and Employment
Several market reports were reviewed to assess the foams industry by end

- use. According to the data available in these market reports, in 2012, the foam market was estimated to gross between $12.0 and $17.3 billion (IBIS [2012a, 2012b] and Barnes [2013a, 2 013b]). 27 Of this, the polystyrene sector represented more than 50% of the industry, based on gross revenue. The same year, the industries for polyurethane and other types of foams employed between 25,700 and 27,300 people and grossed between $6.4 and $8.6 billion (IBIS 2012a, Barnes 2013b); the polystyrene industry employed about 25,000 people and grossed between $5.7 and $8.7 billion (IBIS 2012b, Barnes 2013a). Notably, these 2012 estimates of the number of employees and businesses are significantly lower than those provided for 2007 by the U.S. Census; the reason for this discrepancy is unclear.

26 Parallel information on phenolic, polyolefin, and polystyrene (besides XPS boardstock and billet) system hous es was not available, although it is known that Dow serves as a major system house for polystyrene foams. Companies listed do not necessarily represent an i nclusive list of all polyurethane system houses in the United States.

27 2012 is the most recent year for which market data is available. This estimate is based on the highest gross revenues cited for each foam type across the available reports; the lower bound is estimated at $12.0 billion, based on Barnes (2010) and Barnes (201 2).June 22, 2015

44 Annual foam production estimates by polymeric foam type (which include PU, polyolefins, polystyrene, and other foam types) are illustrated in Figure 13

. The dat a are based on two different reports, BCC Research (2010) and ACC (2012) but show consistent estimates for polyurethane production in 2010 at slightly less than four billion pounds.
Figure 13 : Polymeric Foam U.S. Market Estimate b y Resin Family, 2009

- 2005 (million pounds)

Source: BCC Research (2010).

Additional market information was available for the polyurethane industry from the American Chemistry Council. In 2010, the polyurethane industry directly created 37,700 jobs, payin g $2.0 billion in wages to its employees, and generated $19.7 billion in revenues. Indirectly, this industry created and supported 164,900 additional jobs and generated $40.1 billion in output. Overall, the polyurethane industry supports 202,600 jobs throu gh various activities including raw materials purchasing, equipment and services. Based on these figures, more than four jobs are created upstream or indirectly for each job in the polyurethanes industry, totaling five jobs in the economy for each job in p olyurethanes (ACC 2012). 

## Foam Applications More detailed information on foam product segmentation/application is shown below. Figure 14 illustrates the product segmentation of the polystyrene market as a percentage of the overall revenue, followed by Figure 15 , which illustrates the product segmentati on of polyurethane as well as polyolefin, phenolic, and other foam products. In contrast, Table 22 provides segmentation of polyurethane product by product weight. Th e inclusion of other foam types may explain the significant differences in the product/end

- use categories, notably furniture and transportation, between Figure 14 and Figure 15

.June 22, 2015

45 Figure 14 : 2012 Polystyrene Product Segmentation*

Source: IBIS (2012b).

* Consumer and institutional products include polystyrene foam cups, plates, bowls and cutlery for household and commercial use. Figure 15 : 2012 Polyurethane and Other Product Segmentation

Source: IBIS (2012a).
Table 22 : 2010 Polyurethane Production by Application/Product Type*
Million Pounds % of Total Building and Construction 1,432 38% Transportation and Marine 770 20% Furniture and Bedding 730 19% Appliances 230 6% Packaging 172 5% Footwear 19 1% Other End

- Use** 428 11% Total 3,781 100% Source: ACC (2012). *Includes minor production of non

- foam products, such as adhesives and coatings.

** Includes marine, tank, and pipe uses.June 22, 2015

46 

## 3. **Sector Background**
Most foam types were historically produced in the United States with CFC blowing agent, due to their relative abundance and favorable chemical properties. CFC

- 11 was the predominant blowing agent, followed by CFC

- 12, and CFC

- 113 in niche applications. One exception to this is expanded polystyrene, which has never used ODS blowing agents (ICA 2014).
Historically, a variety of CFCs and HCFCs have been used as foam blowing agents because of their favorable chemical properties. The Nonessential Product Bans in 1993 and 1994 under section 610 prohibited the sale, distribution, or offer for sale or distribution of all foam products containing or manufactured with CFCs and HCFCs, except insulating foams. 28 This ban included open - cell foams , often used for non

- insul ating purposes, because they emit most or all of the blowing agent at the time the foam is blown or within the first year. Flexible slabstock and moulded polyurethane foam, which represent the greatest blowing agent use of all flexible foam types, transiti oned from CFCs to HCs. Integral skin polyurethane foams, however, transitioned briefly to HCFC

141b, and then to CO 2 and HFC

- 134a. One component foams (OCF) also transitioned briefly to HCFCs, namely HCFC

- 22 and HCFC

- 141b, before fully transitioning to HFC

- 134a, HFC

- 152a, and HCs.
In the early 1990s many closed

- cell foams transitioned largely to HCFCs

— particularly HCFC

- 141b and HCFC

142b, and to a lesser extent, HCFC

- 22. Nearly a decade later, in 2003, the United States phased out production and import of H CFC

- 141b and in November 2004, the use of HCFC

- 141b was listed as unacceptable under the SNAP Program. In addition, EPA proposed an unacceptability determination in November 2005 and issued a final unacceptability determination in March 2007, which specified that existing users of HCFC

- 22 and HCFC

- 142b must transition by March 1, 2008, for most uses. EPA provided an additional 18 months for this transition for marine flotation foam, allowing its use until September 1, 2009 and EPA allowed until Janua ry 1, 2010 for the transition for extruded polystyrene boardstock and billet

. Following the phaseout of HCFCs, these applications transitioned largely to HFCs

— primarily HFC

- 134a, HFC

- 152a, and HFC

- 245fa, and more recently HFC

- 365mfc and blends of HFC

- 227ea and HFC

- 365mfc. A number of closed cell foam applications also transitioned from CFCs directly to non
- fluorinated alternatives that are both non

- ozone depleting and low

- GWP

— namely to HCs (cyclo

pentane and n

- pentane) and CO 2 (with water). The United State s’ transition away from the use of ODS to other blowing agents is illustrated in Figure 16

.

28 40 CFR 82.62 defines f oam insulation products as those “containing closed cell rigid polyurethane; closed cell rigid polystyrene boardstock foam; closed cell rigid phenolic foam; or closed cell rigid polyethylene foam when such foam is suitable in shape, thickness, and design to be used as a product that provides thermal insulation around pipes used in heating, plumbing, refrigeration, or industrial proce ss systems.”June 22, 2015

47 Figure 16 : United States Blowing Agent Use from 1985 to 2013 (MT)

Source: EPA Vintaging Model 2014.



## 4. 

## Climate

**- Friendly Alternatives** 
A range of climate

- friendly alternatives have been found to be acceptable under the SNAP program for use as foam blowing agents including hydrocarbons 29 , carbon dioxide, water, and methyl formate. Other acceptable low er
- GWP fluorinated compounds in use include HFO

- 1234ze and trans

- 1

- chloro

- 3,3,3

- trifluoroprop

- 1

- ene ( Solstice 1233zd(E) )

. A dditional alternatives are also under development , such as HFO

- 1336mzz(Z) ( Formacel

1100 ) and methylal

. The U.S. foam industry has mad e significant progress in adopting climate

- friendly alternatives. HCs and to a lesser extent carbon dioxide, have been almost fully adopted in many foam end

- uses. However, there are some foam applications, such as spray foam, where transition ha s been slow er due to specific concerns such as safety considerations related to the particular application.
Over 65% of the U.S. market today already uses climate

- friendly blowing agent alternatives. Additional climate

friendly options are expected to be available i n the near

- term for end

- uses which have thus far encountered barriers to transition (e.g., flammability, insulation performance). Table 23 summarizes available inform ation on the status of use and SNAP listing of several climate

- friendly alternative blowing agent s by end

- use. One is not recognized as a separate end

- use under the SNAP program ; thus, it is not included in the table.

29 Specifically, light saturated hydrocarbons with three to six carbons (C3

- C6) including propane, butane, iso butane, n

- pentane, cyclopentane, isopentane, and hexane and its isomers.June 22, 2015

48 Table 23 : Over view of Climate

- Friendly Alternatives and SNAP Listing Status by Foam Type 1

Foam End

- use HCs CO 2 Water Unsaturated HFCs and HCFCs Methylal Methyl Formate / ecomate TM Flexible Polyurethane: Slabstock and Moulded • SNAP

approved ( 1994 )

• Widely in use • SNAP

approved (199 4 ) • SNAP

approved (1999)

• Widely in use • Solstice 1233zd(E) SNAP

approved (201 4 )

• HFO

- 1336mzz(Z)

SNAP

- approved (2014) • SNAP

approved (2014) • SNAP

approved (2000)

• Under

industry evaluation; trials in progress Rigid P olyurethane and Polyisocyanurat : Boardstock • SNAP

approved ( 1994 )

• Widely in use • SNAP

approved (199 4 ) • SNAP

approved (1999) • Solstice 1233zd(E) SNAP

approved (2012)

• HFO

- 1336mzz(Z)

SNAP

- approved (2014)

• Under regulatory

and/or industry evaluation; trials in progress • SNAP

approved (2014) • SNAP

approved (2000)

Rigid Polyurethane: Appliance • SNAP

approved ( 1994 )

• Widely in use • SNAP

approved (199 4 ) • SNAP

approved (1999) • Solstice 1233zd(E) SNAP

approved (2012); gaining market share

• HFO

- 1234ze

SNAP

- approved (2009); no known use

• HFO

- 1336mzz(Z)

SNAP

- approved (2014) • SNAP

approved (2014) • SNAP

approved (2000)

• No known use

Extruded Polystyrene: Sheet • SNAP

approved ( 1994 )

• Widely in use • SNAP

approved (199 4 )

• Some use • SNAP

approved (1999) • NA • NA • SNAP

approved (2006) 2

Rigid Polyurethane: Spray • N A 3 • SNAP

approved (199 4 )

• Some use • SNAP

approved (1999) • Solstice 1233zd(E) SNAP

approved (2012); gaining market share

• HFO

- 1336mzz(Z)

SNAP

- approved (2015) 4

• HFO

- 1234ze

SNAP

- approved (2009); no known use ; development ongoing for low

pressure formulation • NA • SNAP

approved (2006) 2June 22, 2015

49 Foam End

- use HCs CO 2 Water Unsaturated HFCs and HCFCs Methylal Methyl Formate / ecomate TM Polyolefin • SNAP

approved ( 1994 )

• Widely in use • SNAP

approved (199 4 ) • SNAP

approved (1999) • HFO

- 1234ze SNAP

- approved (2010) • NA • SNAP

approved (2006) 2

Extruded Polystyrene: Boardstock and Billet • SNAP

approved ( 1994 ) • SNAP

approved (199 4 )

• Some use • SNAP

approved (1999) • HFO

- 1234ze SNAP

- approved (2009) • NA • SNAP

approved (2006) 2

Rigid Polyurethane: Slabstock and Other • SNAP

approved ( 1994 ) • SNAP

approved (199 4 )

• Some use • SNAP

approved (1999) • HFO

- 1234ze SNAP

- approved (2010)

• Solstice

1233zd(E) SNAP

approved (2012)

• HFO

- 1336mzz(Z)

SNAP

- approved (2014) • SNAP

approved (2014) • SNAP

approved (2000)

Rigid Polyurethane: Commercial Refrigeration • SNAP

approved ( 1994 )

• Widely in use • SNAP

approved (199 4 )

• Some use • SNAP

approved (1999) • HFO

- 1234ze SNAP

- approv ed (2009)

• Solstice

1233zd(E) SNAP

approv ed (2012)

• HFO

- 1336mzz(Z)

SNAP

- approved (2014) • SNAP

approved (2014) • SNAP

approved (2000)

• Some use

Phenolic Insulation Board and Bunstock • SNAP

approved ( 1994 )

• Widely in use • SNAP

approved (199 4 ) • SNAP

approved (1999) • HFO

- 1234ze SNAP

- approved (2009)

• HFO

- 1336mzz(Z)

SNAP

- approved (2014) • NA • SNAP

approved (2006) 2

Polyurethane: Integral Skin • SNAP

approved ( 1994 )

• No known use • SNAP

approved (199 4 )

• Widely in use • SNAP

approved (1999) • HFO

- 1234ze SNAP

- approved (2010)

• Solstice

1233zd(E) SNAP

approved (2012) • SNAP

approved (2014) • SNAP

approved (2000)

Rigid Polyurethane: Sandwich Panels (Continuous and Discontinuous) • SNAP

approved ( 1994 )

• Widely in use • SNAP

approved (1999)

• Some use • SNAP

approved (1999) • Solstice 1233zd(E) SNAP

approved (2012)

• HFO

- 1234ze

SNAP

- approved (2009)

• HFO

- 1336mzz(Z)

SNAP

- approved (2014) • SNAP

approved (2014) • SNAP

approved (2000)

NA = Not applicable. The SNAP p rogram has not received a submission and/or made a d etermination for the specified end

- use. 1 Earliest SNAP listing dates are indicated in this table.
2 Listed as acceptable under the brand name ecomate TM and not listed for methyl formate

. 3 Listed as acceptable under the brand name Exxsol blowing agents, and not listed for light saturated C3

- C6 hydrocarbons.
4 Liste d as acceptable for use in high

- pressure two

- part spray foam only.June 22, 2015

50 

# References

Accelerate Magazine. 2015. North America Edition #4 March 2015. Available online at: http://www.refrigerantsnaturally.com/data/user_upload/20150318

- Accelerate_America_Issue4.pdf

.
AboutAerosols. 2013. Aerosol Information . Available online at: http://aboutaerosols.com/ . Accessed February 18, 2013.

AftermarketNews ( AMN ) 2013. German Automakers To Develop CO2 A/C Systems. Available online at: http://www.aftermarketnews.com/Item/111549/german_automakers_to_develop_co2_ac_systems.aspx

. March 25, 2013.
Air Conditioning, Heating, Refrigeration News (ACHR News). 2010. CO 2 in Supermarket Refrigeration . Sept ember 6, 2010. Available at: http://www.achrnews.com/articles/co2

- in

- supermarket

- refrigeration

. Alliance of Automobile Manufacturers. 2014. Comments on the Proposed Rulemak ing to Protection of Stratospheric Ozone: Change of Listing Status for Certain Substitutes Under the Significant New Alternatives Policy Program, Docket No. EPA

– HQ

– OAR

– 2014

– 0198. October 20, 2014.
American Chemistry Council (ACC). 2012. The Economic Impac t of the P olyurethanes Industry in 2010. Bayer. Undated. Bayer Business Area: Polyurethane. http://www.bayermaterialsciencenafta.com/businesses/pur/applications.html

. Accessed February 20, 2013.
American Public Transportation Association (APTA ). 2012. 2012 Public Transportation Fact Book . Available online at: http://w ww.apta.com/resources/statistics/Documents/FactBook/APTA_2012_Fact%20Book.pdf Accessed October 21, 2013.
Automated Merchandising Systems ( AMS ) . 2015. Our Vendors: Glass

- Front Deli. Available online at: http://www.amsvendors.com/vendors.aspx?Vendor=GlassFrontDeli

. Accessed May 6 , 201 5

. Andersen, S.O., N.J. Sherman, T. Craig, and J. Baker. 2015. Secondary Loop Motor Vehicle Air Conditioning Systems (SL

- MACs). Orlando MACS Briefing. February 6, 2015.

Arke ma. 2013. Arkema is announcing the construction of production capacities for new refrigerant fluorinated gas 1234yf. Press Release. September 4, 2013. Available online at: http://www.arkema.com/en/media/news/news

- details/Arkema

- is

- announcing

- the

- construction

- of

production

- capacities

- for

- new
- refrigerant

- fluorinated

- gas
- 1234yf/?ba ck=true

. Armines (2009). Inventory of Direct and Indirect GHG Emissions from Stationary Air Conditioning and Refrigeration Sources, with Special Emphasis on Retail Food Refrigeration and Unitary Air Conditioning. Prepared for State of California Air Resources Board. March 2009.

Association of Global Automakers. 2014 a . Comments on the Proposed Rulemaking to Protection of Stratospheric Ozone: Change of Listing Status for Certain Substitutes Under the Significant Ne w Alternatives Policy Program (79 FR 46126), Docket No. EPA

– HQ

– OAR

– 2014

– 0198. October 20, 2014.June 22, 2015

51 Association of Global Automakers and American International Automobile Deals Association. 2014 b . Redefining the American Auto Industry: The Growing Imp act of I nternational Automakers on the U.S. Economy

. Available online at: http://www.globalautomakers.org/sites/default/files/RedefiningtheAmericanAutoIndustry2014.pdf
Auto Care Association. 2015. State of the Auto Care Industry Report. April 2015. Available onli ne at: http://www.nxtbook.com/mercury/autocare/StateOfTheIndustry_Report/#/20

.
Aut omotive Industries Team. 2011. The Road Ahead . U.S. Department of Commerce. Avail able online at: http://www.trade.gov/mas/manufacturing/oaai/build/groups/public/@tg_oaai/documents/webcontent/tg _oaai_003659.pdf . Accessed October 21, 2013.

Automotive News. 2008. 2008 Market Data: North American Production . April 7, 2008. Available online at: http://www.autonews.com/assets/PDF/CA4289044.PDF

.
Automotive News. 2009. 2009 Market Data: North American Production . July 27, 2009. Available online at: http://europe.autonews.com/assets/PDF/CA66214723.PDF

.
Automotive News. 2011. 2011 Market Data: North American Production . July 25, 2011. Available online at: http://w ww.autonews.com/assets/PDF/CA74794722.PDF

.
Automotive News. 2012. 2012 Market Data: North American Production . November 2012. Available online at: http://www.autonews.com/assets/PDF/CA846 391218.PDF

.
Automotive World. 2014. World’s leading authority on climate change confirms that Honeywell’s new automobile refrigerant has lower global warming potential than carbon dioxide . Available online at: https://www.automotiveworld.com/news

- releases/worlds

- leading

- a uthority

- climate

- change

- confirms

honeywells

- new
- automobile

- refrigerant

- lower

- global

- warming

- potential

- carbon

- dioxide/

. ASHRAE. 2013. ANSI/ASHRAE Standard 34

- 2013 Designation and Classification of Refrigerants.

BASF. 2010. Contact Us

– What is SPF? http://spf.basf.com/

. Accessed February 20, 2013.
Barnes Reports. 2010. U.S. Urethane & Other Foam Product Manufacturing Industry

. Barnes Reports. 2012. Polystyrene Foam Product Manufacturing Industry

. Barnes Reports. 201 3a. Polystyrene Foam Product Manufacturing Industry.
Barnes Reports. 2013b. U.S. Urethane & Other Foam Product Manufacturing Industry.

BCC Research. 2010. Polymeric Foams . August 2010.
Beaver, Larry, Ph.D. 2011. VOC Overview: SATA Aerosol 101 . March 23, 2011. Presentation available at: http://southernaerosol.com/Power%20Point/Spring%202011/VOC_OVERVIEW_03_23_2011.pdf . Accessed March 28, 2013.

Ben & Jer ry’s. 2012. Experience with Natural Refrigerants . Presented at the ATMOshpere America 2012 conference, Washington D.C. Available at: http://www.atmo.org/media.presentation.php?id=124

.
Bure au of Economic Analysis ( BEA ). 2014. Auto and Truck Seasonal Adjustment

.June 22, 2015

52 California Air Resources Board (CARB ). 2011. LEV III Greenhouse Gas Non

- Test Cycle Provisions: Technical Support Document.

Cable News Network ( CNN ). 2012. Fortune 500: Construction and Farm Machinery . Available online at: http://money.cnn.com/magazines/fortune/fortune500/2012/industries/230/

.
Coca

- Cola, 2014. Coca

- Cola Installs 1 Mil lionth HFC

- Free Cooler Globally, Preventing 5.25MM Metrics Tons of CO2, January 22, 2014. This document is accessible at http://www.coca

- colacompany.com/press

center/press

- releases/coca

- cola

- installs

- 1

- millionth

- hfc

- free

- cooler

- globally

- preventing

- 525mm

- metrics

tons

- of

- co2

.
Coca

- Cola Company. 2015. 16 Things You Didn’t Know About Vending Machines in Japan and Around the World. Available online at: http://www.coca

- colac ompany.com/stories/16

- things

- you
- didnt

- know

- about

- vending

machines

- in

- japan

- and

- around

- the

- world . Accessed May 5, 2015.
Coffin, David. 2013. Passenger Vehicles . Industry and Trade Summary. Publication ITS

- 09. Was hington, DC.
Consumer Specialty Products A ssociation (CSPA). 2012. Aerosol Pressurized Products Survey

- 61st Annual Products Survey . April 15, 2012.
Consumer Specialty Products Association (CSPA). 2008. USA Aerosol HFC Usage

. Crowell, Chris. 2015. Refrigerant Revolution: What R

- 1234yf Means for Service, Equipment, Safety

. Available online at: http://www.underhoodservice.com/r

- 1234yf

- refrigerant

- service

- equipment

- safety/

Depar tment of Energy (DOE). 2013a. Technical Support Document for the Notice of Proposed Rulemaking for Comme rcial Refrigeration Equipment . September 2013. Available at: http://www.regulations.gov/#!documentDetail;D=EERE

- 2010

- BT

- STD

- 0003

- 0051

. Depa rtment of Energy (DOE). 2013b. Technical Support Document for the Notice of Proposed Rulemaking for Walk

- i n Coolers and Walk

- in Freezers

. September 2013. Available at: http://www1.eere.energy.gov/buildings/appliance_standards/pdfs/wicf_nopr_tsd_2.pdf

. Depa rtment of Energy (DOE). 2008a. Energy Conservation Program: Energy Conservation Standards for Walk

- in Coolers and Freezers . Available online at: http://www1.eere.energy.gov/buildings/appliance_standards/pdfs/wicf_nopr_notice.pdf

. Depa rtment of Energy (DOE). 2008b. Technical Support Document for the Notice of Proposed Rulemaking for Beverage Vending Machines

. Available at: http://www1.eere.energy.gov/buildings/appliance_standards/commercial/pdfs/bv m_anopr_tsd_chpt_3.pdf

Dep artment of Energy (DOE). 2009. Energy Savings Potential and R&D Opportunities for Commercial Refrigeration . September 2009. Prepared by Navigant Consulting. Available online at: http://apps1.eere.energy.gov/buildings/publications/pdfs/corporate/commercial_refrig_report_10

- 09.pdf

. Department of Transportati on (DOT). 2012. Table 1

- 14 U.S. Automobile and Truck Fleet s by Use . October 2012. Available online at: http://www.rita.dot.gov/bts/sites/rita.dot.gov.bts/files/publications/national_ transportation_statistics/inde x.html

.June 22, 2015

53 Department of Transportation (DOT). 2013a. Appendix B

– Glossary. Available online at: http://www.rita.dot.gov/bts/sites/rita.dot.gov.bts/files/publications/national_transportation_statistics/htm l/appendix_b.html

. Department o f Transportation (DOT). 2013b. Table 1

- 11 Number of U.S. Aircraft, Vehicles, Vessels, and Other Conveyances . July 2013. Available online at: http://www.rita.dot.gov/bts/sites/rita.dot.gov.bts/files/publications/national_ transportation_statistics/inde x.html

. Department of Transportation (DOT). 2014. Table 1

- 15: Annual U.S. Motor Vehicle Production and Factory (Wholesale) Sales (Thousands of units) . May 2014. Available online at: http://www.rita.dot.gov/bts/sites/rita.dot. gov.bts/files/publications/national_transportation_statistics/htm l/table_01_15.html_mfd.
Downey, Rosemarie. 2012. Online Exclusive: Deodorants Help Drive Metal Aerosol Can Fortunes. Beauty Packages . Available online at: http://www.beautypackaging.com/articles/2012/05/online

- exclusive

deodorants

- help

- drive

- metal

- aeros . Accessed February 18, 2013.

DuPont. 2013. Opteon Refrigerants. Available at : http://www2.dupont.com/Refrigerants/en_US/assets/downloads/k26492_Opteon_refrigerants.pdf

.
DuPont. 2014. Comments on the Proposed Rulemaking to Protection of Stratospheric Ozone: Change of Listing Status for Certain Substitutes Under the Significant New Alternatives Policy Program (79 FR 46126), Docket No. EPA

– HQ

– OAR

– 2014

– 0198. October 17, 2014.

Environmenta l Inve stigation Agency (EIA). 2012a. Availability of low GWP alternatives to HFCs: Feasibility of an early phase

- out of HFCs by 2020 . Available online at: http:// www.eia

- international.org/availability

- of

- low

gwp
- alternatives

- to

- hfcs

. Accessed October 24, 2013.
Environmental Investigation Agency (EIA). 2012b. US Market Study of HFC

- Free Technologies for the Supermarket

- Retail Refrigeration Sector . Available at: http://eia

- global.org/news

- media/hfc

- free

technologies

- are
- available

- in

- the

- us
- market

- for

- the

- supermarket

- re

. Environmental Investiga tion Agency (EIA). 2014. Comments on the Proposed Rulemaking to Protection of Stratospheric Ozone: Change of Listing Status for Certain Substitutes Under the Significant New Alternatives Policy Program (79 FR 46126), Docket No. EPA

– HQ

– OAR

– 2014

– 0198. Octobe r 20, 2014.
Environmental Protection Agency (EPA). 1990. Alternative Formulations to Reduce CFC Use in U.S. Exempted and Excluded Aerosol Products. Air and Energy Engineering Research Laboratory. Available at: http://nepis.epa.gov/Exe/ZyNET.exe/30003TQ2.TXT?ZyActionD=ZyDocument&Client=EPA&Index=1986+Thr u+1990&Docs=&Query=&Time=&EndTime=&SearchMethod=1&TocRestrict=n&Toc=&TocEntry=&Q Field=& QFieldYear=&QFieldMonth=&QFieldDay=&IntQFieldOp=0&ExtQFieldOp=0&XmlQuery=&File=D%3A \ zyfiles \ I ndex%20Data \ 86thru90 \ Txt \ 00000004 \ 30003TQ2.txt&User=ANONYMOUS&Password=anonymous&SortMe thod=h|

- &MaximumDocuments=1&FuzzyDegree=0&ImageQuality=r75g8/r75g8/x1 50y150g16/i425&Display=p|f&De fSeekPage=x&SearchBack=ZyActionL&Back=ZyActionS&BackDesc=Results%20page&MaximumPages=1&ZyE ntry=1&SeekPage=x&ZyPURL

. Environmental Protection Agency (EPA). 2010a. Final Rulemaking to Establish Light

- Duty Vehicle Greenhouse GasJune 22, 2015

54 Emission Standards and Corporate Average Fuel Economy Standards Regulatory Impact Analysis. April 2010

. Available online at: http://www.epa.gov/otaq/climate/regulations/420r10009.pd f

.
Environmental P rotection Agency (EPA). 2010b. EPA and NHTSA Propose First

- Ever Program to Reduce Greenhouse Gas Emissions and Improve Fuel Efficiency of Medium

- and Heavy

- Duty Vehicles: Regulatory Announcement . October 2010. Available online at: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CC4QFjAA&url=http%3A%2 F%2Fwww.nhtsa.gov%2Fstaticfiles%2Frulemaking%2Fpdf%2Fcafe%2FCAFE_2014

- 18_Trucks_FactSheet

v1.pdf&ei=X75q Utm4C8bR2QXjv4DADg&usg=AFQjCNGQhBMXoSj1Il0U6

- mB8iwFPlVzzQ&sig2=gApP0RUxqZhh

- 7mchthviA&bvm=bv.55123115,d.b2I

..
Environmental Prot ection Agency (EPA). 2010c. Draft Regulatory Impact Analysis: Proposed Rulemaking to Establish Greenhouse Gas Emissions Standa rds and Fuel Efficiency Standards for Medium

- and Heavy

- Duty Engines and Vehicles . October 2010.
Environmental Protection Agenc y (EPA). 2010d. Transitioning to low

- GWP alternatives in the Commercial Refrigeration

. Available online at: www.epa.gov/ozone/downloads/EPA_HFC_ComRef.pdf

. Environmental Protection Agency (EPA). 2011a

. Regulatory Impact Analysis: Final Rulemaking to Establish Greenhouse Gas Emissions Standards and Fuel Efficienc y Standards for Medium

- and Heavy

- Duty Engines and Vehicles . August 2011. Available online at: http://www.epa.gov/otaq/climate/documents/420r11901.pdf

. Environmental Protection Agency (EPA). 2011b. Protection of Stratospheric Ozone: Listing of Substitutes for Ozone

- Depleting Substances

- Hydrocarbon Refrigerants . Final Rule. Appendix R to Subpart G, 40 CFR Part 82 and 76 FR 78832. December 20, 2011. Available at: http://www.gpo.gov/fdsys/pkg/FR

- 2011

- 12

- 20/html/2011

- 32175.htm

.
Environmental P rotection Agency (EPA). 2012a. Regulatory Impact Analysis: Final Rulemaking for 2017

- 2025 Light

- Duty Vehicle Greenhouse G as Emission Standards and Corporate Average Fuel Economy Standards

. August 2012. Available online at: http://www.epa.gov/otaq/climate/documents/420r12016.pdf . Accessed October 21, 2013.

Environmental P rotection Agency (EPA). 2012b. Protection of Stratospheric Ozone: Alternative for the Motor Vehicle Air Conditioning Sector Under the Significant New Alternatives Policy (SNAP) Program . Final Rule. 40 CFR Part 82. EPA

– HQ

– OAR

– 2004

– 0488 ; FRL

– 9668

– 8. RIN 2060

– AM54. June 6, 2012.
Environmental Protection Agency (EPA) and National Highway Traffic Safety Administration (NHTSA). 2012. Joint Technical Support Document: Final Rulemaking for 2017

- 2025 Light

- Duty Vehicle Greenhouse Gas Emission Standards and Corporate Average Fuel Economy Standards. August 2012. Available online at: http://www.epa.gov/otaq/climate/documents/420r12901.pdf

. Environmental Protection Agency (EPA). 2013a. Risk Management System Database: Olive Branch Distribution Center, J&J SLC. Available online at: http:/ /data.rtknet.org/rmp/rmp.php?facility_id=100000204584&database=rmp&detail=3&datype=T

. Environmental Protection Agency (EPA). 2013b. Global Mitigation of Non

- CO2 Greenhouse Gases: 2010

- 2030

. Available online at: http://www.epa.gov/climatechange/Downloads/EPAactivities/MAC_Report_2013.pdf

.June 22, 2015

55 Environmental Protection Agency (EPA). 2013c. International Marginal Abatement Cost Curve Analysis for Reduction of HFCs in Oz one Depleting Substance Sectors

. Prepared for US EPA by ICF International. February 2013. Available online at: http://www.epa.gov/climatechange/Downloads/EPAactivi ties/MAC_Report_2013.pdf

. Environmental Protection Agency (EPA). 2014. EPA Vintaging Model. VM IO file_V4.4_3.23.14.xls

.

EPA, 2015. Response to Comments on the SNAP Status Change Rule. April 2015.

Eastern Research Group ( ERG ). 2010. Characterizing MAC Refrigerant Emissions from Heavy

- Duty On and Off

road Vehicles in California. September 2010. Available online at: http://www.arb.ca.gov/research/apr/past/06

- 342.pdf . Accessed October 21, 2 013.

Euro pean Aerosol Federation. 2013. Code of Practice on HFCs Use in Aerosols . Available at: http://www.eesc.europa.eu/self

- and

- coregulation/documents/codes/private/021

- private

- act.pdf. Last update: 02 January 2013. Accessed February 18, 2013.

Europea n Commission (EC). 2001. European Climate Change Programme Working Group Industry Work Item Fluorinated Gases. June 18, 2001. Available online at: http://ec.europa.eu/ clima/policies/eccp/docs/eccp_wg_final_report_en.pdf

. Expert Group. 2013. Cold Hard Facts 2

- A study of the refrigeration and air conditioning industry in Australia

. Prepared for the Department of Sustainability, Environment, Water, Population and Commun ities. July 2013.
Falcon Safety, 2007. Personal communication between Mollie Averyt, ICF International and Phil Lapin, Falcon Safety. December 19, 2007.
FCA, 2015. Fiat Chrysler Automobiles R

- 1234yf A/C Update. MACS 2015 Training Event and Trade Show. February, 2015.
FindTheBest.com, Inc. 2013. Corporate data on Royal Vendors, Inc in Saint Louis, Missouri. Available at : http://companies.findthecompany.com /l/13338544/Royal

- Vendors

- Inc

- in

- Saint

- Louis

- MO

. Flexible and Rigid Foams Technical Options Committee (FTO C). 2010. 2010 Rigid and Flexible Foams Report

. Reports for the Technology and Economic Assessment Panel. Available online at http://ozone.unep.org/new_site/en/assessment_docs.php?committee_id=6&body_id=3&body_full=F lexible %20and%20Rigid%20Foams%20Technical%20Options%20Committee&body_acronym=FTOC . Accessed June 1, 2012.
Food Marketing Industry (FMI). 2014. Supermarket Facts: Industry Overview 2013 . Available at: http://www.fmi.org/facts_figs/?fuseaction=superfact

. Accessed June 2, 2014.
Fuji Electric. 2003 . Fuji Electric Review: Vending Machines Refrigerated Display Cases. Small

- sized, Hot and Cold Cup Vending Machine . Available at: http://www.fujielectric.com/company/tech/pdf/r49

- 1/02.pdf . Accessed May 5, 2015.
Geer, Robert. 2011. Aerosol Formulation Considerations . Presentation available at: http://southernaerosol.com/Power%20Point/Spring%202011/Formulation%20Considerations.pdf . Accessed March 26, 2013.June 22, 2015

56 Gertrude Fisher. 1978. Therapeutic copper compositions . US Patent No. 4123511 A. Oct 31, 1978 . Available online at: http://www.google.com/patents/US4123511. Accessed May 5 , 2015

. Global Industry Analysts, Inc. 2012. Deodorants

– A Global Strategic Business Report . April 2012. Available online at: http://www.strategyr.com/Deodorants_Market_Report.asp . Accessed Feb ruary 18, 2013.
Good Green Tech. (2008). Coca

- Cola to Use CO2 for Beverage Cooling. Available at: http://goodcleantech.pcmag.com/news

- and

- events/280645

- coca
- cola

- to

- use
- co2

- for

- beverage

- cooling

.
Good Guide. 2013. Personal Care Health, Environment, and Society Listings . Available online at: http://www.goodguide .com . Accessed on February 20, 2013.
GreenChill Partnership data. 2013. 2012 GreenChill Partnership Internal EPA Report . April 29, 2013. Spreadsheet provided by EPA to ICF on September 20, 2013.

GTZ Proklima. 2008. Natural Refrigerants: Sustainable Ozone

- and Climate

- Friendly Alternatives to HCFCs. Deutsche Gesellschaft für Technische Zusammenarbeit (GTZ) GmbH. Eschborn, Germany. July 2008. Available at: http ://epa.gov/greenchill/downloads/en

- gtz

- proklima

- natural

- refrigerants.pdf

. GIZ Proklima. 2013. NAMAs in the refrigeration. Air conditioning and foam sectors. A technical handbook

. Module 4: Ecomonic Assessment. Deutsche Gesellschaft für Internationale Zusa mmenarbeit (GIZ) GmbH. Eschborn, Germany. December 2013. Available at: http://www.giz.de/expertise/downloads/Fachexpertise/giz2013

- en
- NAMAs

- Modul4

- web.pdf

. Greenpeace. 2012. Cool Technologies: Working without HFCs. 2012 Edition. Available online at: http://www.greenpeace.o rg/international/Global/international/publications/climate/2012/Fgases/Cool

Technologies

- 2012.pdf

. Heatcraft. 2004. Installation and Operating Guide: PRO3 Refrigeration System. Available online at: http://www.walkincooler.com/heatcraft/pdf/pro3instruction.pdf . Accessed May 6, 2015.

Heatcraft. 2013. Microchannel Condenser . Available at: http://www.heatcraftrpd.com/productcatalog/familydetail.aspx?&FilterCol=&FilterVal=&LPNO=5&catID=HC 133&pageNo=1&cID=2

. Accessed January 9, 2014.
Hillphoenix. 2012. Advances in CO 2 Supermarket Refrigeration in North America . Presented by S. Martin, Hill PHOENIX, at the ATMOsphere 2012 conference, Washington, DC. Available at: http://www.atmo.org/media.presentation.php?id=139

. Hillphoenix. 2013. Parallel Racks . Available at: http://www.hillphoenix.com/refrigeration

- systems/parallel

racks/

. Accessed January 9, 2014.

Ho neywell. 2011a. Press Release, Honeywell t o Invest $33 Million In Louisiana Facility

. Available at http://honeywell.com/News/Pages/Honeywell

- To

- Invest

- $33

- Million

- In

- Louisiana

- Facility.aspx. November 2011. Accessed February 2013.
Honeywell. 2011b. E

- mail communication between Alberto Malerba (Honeywell ) and Pamela Mathis (ICF International). July 2011.June 22, 2015

57 Honeywell. 2011c. HFO

- 1234ze New Low Global Warming Potential Aerosol Propellant , March 2011.
Honeywell. 2011d. Energy Efficiency and Environmental Compliance as Innovation Drivers . Presentation sent to ICF International in 2011.
Honeywell. 2014. Comments on the Proposed Rulemaking to Protection of Stratospheric Ozone: Change of Listing Status for Certain Substitutes Under the Significant New Alternatives Policy Program (79 FR 46126), Docket No. EPA

– H Q

– OAR

– 2014

– 0198. October 20, 2014.
IBIS World. 2012a. IBIS World Industry Report 32615: Urethane Foam Manufacturing in the US.
IBIS World. 2012b. IBIS World Industry Report 32164: Polystyrene Foam Manufacturing in the US

. Insulation Corporation of Americ a (ICA). 2014. Expanded Polystyrene EPS: What is EPS? Available online at: http://insulationcorp.com/eps/

. ICF International (ICF). 1998. ICF Memorandum to EPA: Nonessential Products Ban

- Aerosols. EPA Contr act No. 68

- D5

- 0147, Work Assignment 2

- 15, Task 03. August 18, 1998. ICF International (ICF). 1999. ICF Memorandum to EPA: Analysis of Non

- MDI Aerosols Market Trends

. EPA Contract No. 68

- D5

- 0147, Work Assignment 3

- 04, Task 05. September 24, 1999.

ICF International ( ICF). 2003. Memorandum to EPA, Industry Responses from Flame Retardant Manufacturers. Jeffs, Mike. 2013. Personal communications between Pamela Mathis and Jenny Tanphanich, ICF International, and Mike Jeffs. January

– May 2013.

Internation al Council on Clea n Transportation (ICCT). 2011. U.S. Greenhouse Gas Emissions and Fuel Efficiency Standards for Medium

- and H eavy
- Duty Engines and Vehicles

. September 23, 2011. Available online at: http://www.theicct.org/sites/default/files/publications/ICCTpolicyupdate14_USHDV_final.pdf . Accessed October 21, 2013.
International Council on Clean Transporta tion (ICCT). 2012. Comparative Lifecycle Cost Assessment of Alternative Mobile Air Conditioning Systems in the Light

- Duty Vehicle Sector . Final Report. May 2, 2012. Available upon request to Ray Minjares of ICCT.
International Panel on Climate Change (IPCC) . 2006. 2006 IPCC Guidelines for National Greenhouse Gas Inventories . The National Greenhouse Gas Inventories Programme, The Intergovernmental Panel on Climate Change, H.S. Eggleston, L. Buendia, K. Miwa, T Ngara, and K. Tanabe (eds.). Hayama, Kanagawa, Japan.
International Panel on Climate Chang e ( IPCC). 2007. Climate Change 2007: The Physical Science Basis

. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M. Tignor, and H.L. Miller (Eds.). Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA. September 2007. Available at: http://www.ipcc.ch/publications_and_data/a r4/wg1/en/contents.html

. International Panel on Climate Change (IPCC)/ Technical and Economical Assessment Panel (TEAP). 2005. Safeguarding the Ozone Layer and the Global Climate System: Issues Related to Hydrofluorocarbons and Perfluorocarbons, Chapter 10: Non

- Medical Aerosols, Solvents, and HFC

- 23 . Campbell, N., J. Hu, P. Lapin, A. McCulloch, A. Merchant, K. Mizuno, J. Owens, P. Rollet. Available online at: http://www.ipcc.ch/pdf/spe cial

reports/sroc/sroc10.pdf

.
Internation al Trade Administration. 2010. Motor Vehic les Industry Assessment FY 2010

. U.S. Department ofJune 22, 2015

58 Commerce. Available online at: http://www.trade.gov/mas/manufacturing/oaai/build/groups/public/@tg_oaai/documents/webcontent/tg _oaai_003754.pdf . Accessed October 21, 2013.

Internation al Trade Administration. 2011. The Road Ahead Phase II. U.S. D epartment of Commerce. http://www.trade.gov/mas/manufacturing/oaai/build/groups/public/@tg_oaai/documents/webcontent/tg _oaai_00 3659.pdf

.
International Trade Administration. 2014. U.S. Automotive Trade Data and Data Links. Available online at: http://trade.gov/mas/manufacturing/oaai/tg_oaai_003649.asp

.
ISSA. March 2012. Summary of State and Federal VOC Limitations for Institutional and Consumer Products. Available online at: http://www.issa.com/data/File/regulat ory/VOC%20Limits%20Summary%203

- 20

- 12.pdf

. Lowe, M., S. Tokuok a, K. Dubay, G. Gereffi. 2010. U.S. Manufacture of Rail Vehicles for Intercity Pa ssenger Rail and Urban Transit. June 24, 2010. http://www.cggc.duke.edu/pdfs/U.S._Manufacture_of_Rail_Vehicles_for_Intercity_Passenger_Rail_and_Ur ban_Transit.pdf . Accessed October 21, 2013.

Master

- Bilt. 2014. Refrigeration Systems. Available online at: http://www.master

bilt.com/products/refrigeration.htm

. Accessed June 2, 2014.
McDougall, Andrew. 2013. Unilever cuts carbon emission and halves size of aerosol deod orants . Cosmetics Design

– Europe. 05 February 2013. Available online at: http://www.cosmeticsdesign

europe.com/Packaging

- Design/Unilever

- cuts

- carbon

- emission

- and

- halves

- size

- of

- aerosol

- deodorants

. McFarland, Mack. 2013. Personal communication with Mack McFarland of DuPont and Mark Wagner and Pamela Mathis o f ICF International. September 25, 2013.
Midwest Aerosol Association. 2014. Aerosols in Developing Countries. Presentation by Geno Nardini. Available online at: http://okaytospray.net/wp

- content/uploads/pdfs/2%20

- %20AEROSOLS%20IN%20DEVELOPING%20%20COUNTRIES%20

- %2003272014.pdf

.
N acer, A. & M. San Roman. 2013. Low GWP Refrigerant for Buses and Trains Air Conditioning. Available online at: http://www.honeywell

- refrigerants.com/europe/wp

- content/uploads/2013/03/honeywell

- solstice

hfo1234yf

- lgwp

- buses

- trains

- air

- conditioning

- paper.pdf . Accessed October 21, 2013.
Nelson, Gabe. 2013. Automakers' switch to new refrigerant will accelerate with EPA credits, European mandate. Automotive News. Available online at: http://www.autonews.com/article/20131230/OEM01/312309996/warming

- to

- the

- idea#

. Obrist Engineering. 2011. Are high efficient HC’s if accompanied with a safety system a possible a lternative to R

134a in MACs. ATMOsphere 2011. Available online at: http://www.atmo.org/presentations/files/107_Obrist

- New

- safety

- system

- for

- hydrocarbons

- in

- Mobile

- Air

Conditioning.pdf

.
OICA. 2014. World Motor Vehicle Production by Country and Type 2005

– 2013. International Organization of Motor Vehicle Manufacturers. Available online at: http://www.oica.net/category/production

- statistics/

.
Oko

- Recherche. 2011. Preparatory study for a review of Regulation (EC) No 842/2006 on certain fluorinatedJune 22, 2015

59 greenhouse gases. Annexes to the Final Report. Available online at: http://ec.europa.eu/clima/policies/f

gas/docs/2011_study_annex_en.pdf

. Organisation Internationale des Constructeurs d’Automobiles (OICA). 2014. World Motor Vehicle Production Statistics (2008

– 2013). Available online at: http://www.oica.net/category/production

- statistics/

.
Price

- Driscoll. 2011. Mater ial Safety Data Sheet. Spinnerette Spray for Nylon . August 2011. Available online at: http://moldrelease.price

- driscoll.com/Asset/Nylon.pdf

. Accessed February 18, 2013.

Proctor & Gamble . 1973. Novel suspending agent composition for use in powder aerosol compositions and process for preparation. US Patent No. 3773683 . November 20, 1973. Available online at: http://www.google.com/pate nts/US3773683 . Accessed June 11, 2014.

PRWeb. 2013. SAE International MRB CRP Announces Significant Progress in Development of Low GWP Blended Refrigerants. October 2, 2013. Available online at: http://www.prweb.com/releases/2013/10/prweb11188830.htm . Accessed October 29, 2013.
Red Dot Corporation. 2011a. Refrigera nts for Heavy

- duty A/C Systems

. Available online at: http://www.reddotcorp.com/sites/default/files/WhitePaper

- Refrigerants_for_Heavy

- duty_AC_Systems.pdf
Refrigeration, Air Conditioning, and Heat Pumps Technical Options Committee ( RTOC ). 2010. Refrigeration, Air Conditioning and Heat Pumps Technical Options Committee 2010 Assessment. Available online at: http://ozone.unep.org/teap/Reports/RTOC/RTOC

- Assessmen t

- report

- 2010.pdf/
Refrigerants, Inc. 2010. Products. Available at: http://refrigerantsinc.com/index.php/products.html

Research and Markets. 2012. Air Fresheners: Global Industry Guide. February 2012. Available online at: http://www.researchandmarkets.com/reports/223066/air_fresheners_global_industry_guide

.
Research and Markets. 2012. U nited States: Personal Hygiene/ Personal Care Industry Guide. Available online at: http://www.researchandmarkets.com/reports/1587155/united_s tates_personal_hygiene_personal_care.pd f . Accessed March 12, 2013.

S.C. Johnson. 2013. What’s Inside S.C. Johnson: Glade® Products. Available online at: http://www.what sinsidescjohnson.com/en

- us/products

- by

- brand/glade.aspx . Accessed February 18, 2013.

SAE International. Undated. Development and Evaluation of AC5 and AC6 Refrigerants for MAC Applications

. White Paper. Available online at: http://www.sae.org/standardsdev/tsb/cooperative/mrb

ac6_white_paper.pdf . Accessed October 29, 2013.

SAE International. 2013. A/C industry faces challenges from Daimler R

- 1234yf issues, explores other options

. Available online at: http://articles.sae.org/11870/ . Accessed March 3, 2014.
Sanyo. 2008. CO 2 in Vending Machine. Available at: http://www.r744.com/assets/link/sanyo_montreal_apr08.pdf

.
Seattle Post Globe. 2009. 30 percent chance of getting an air

- conditioned bus . July 28, 2009. Available online at: http://seattlepostglobe.org/2009/07/28/30

- percent

- chance

- of

- getting

- an
- air

- conditioned

- bus/

.
Shecco. 2012. 2012: Natural Refrigerants Market Growth for Europe

. Available at: http: //guide.shecco.com/

.June 22, 2015

60 Shecco. 2013. 2013: Natural Refrigerants Market Growth for North America . Available online at: http://www.r744.com/web/assets/ paper/file/guide_natural_refrigerants_north_america_2013.pdf

. Spray Polyurethane Foam Alliance (SPFA). 2013. Environment Product Declaration: Spray Polyurethane Foam for Insulation and Roofing Systems . UL Environment. October 10, 2013.
Supermarket News. 2012. Refrigeration Systems Chillin’ with Carbon Dioxide

. Available at: http://supermarketnews.com/technology/ refrigeration

- systems

- chillin

- carbon

dioxide?page=1 showtext.cfm?t=ptb0810

. Supermarket News. 2013. Transcritical Refrigeration Ready for Prime Time: Panel. Available at: http://supermarketnews.com/sustainability/transcritical

- refrigeration

- ready

- prime

- time

- panel

. Technology and Economic Assessment Panel ( TEAP ). 2013. Report of the Technology and Economic Assessment Panel Volume 2 Decision XXIV/7 Ta sk Force Report Additional Information to Alte rnatives on ODS (Draft Report). Available online at: http://ozone.unep.org/Assessment_Panels /TEAP/Reports/TEAP_Reports/TEAP_TaskForce%20XXIV

- 7

- May2013.pdf

. Technology and Economic Assessment Panel (TEAP). 2010. TEAP 2010 Progress Report, Volume 1: Assessment of HCFCs and Environmentally Sound Alternatives, Scoping Study on alternatives to HCFC Refrigerants Under High Ambient Temperature Conditions. Available online at: http://www.unep.ch/ozone/Assessment_Panels/TEAP/Reports/TEAP_Reports/teap

- 2010

- progress
- report

volume1

- May2010.pdf

. Technology and Economic Assessment Panel (TEAP). 2012. Decision XXIII/9 Task Force Report: Additional Information on Alternatives to Ozone

- Depleting Substances. UNEP Report of the Technological and Economic Assessment Panel. Volume II. May 2012. Available online at: http://ozone.unep.org/Assessment_Panels/TEAP/Reports/TEAP_Reports/teap

- task

- force

- XXIII

- 9

- report

may2012.pdf

. Burden, M elissa. 2015. GM sales jump 18.3%, Ford up 15.3%, FCA up 14% in Jan. The Detroit News. February 9, 2015. Available online at: http://www.detroitnews.com/story/business/autos/2015/02/03/january

- auto

sales/22785483/

. United Nations Environment Programme (UN EP). 2002. Report of the Solvents, Coatings, and Adhesives Technical Options Committee . Available online at: http://ozone.unep.org/Assessment_Panels/TEAP/Reports/CTOC/ST OC2002.pdf

. United Nations Environment Programme (UNEP). 2009. Multilateral Fund for the Implementation of the Montreal Protocol (2009), Project Proposal: China, UNEP/OzL.Pro/ExCom/59/23 . Available online at: http://www.multilateralfund.org/sites/59/Document%20Library2/1/5923.pdf

. United Nations Environment Programme (UNEP). 2010a. “Guidance on the Process for Selecting Alter natives to HCFCs in Foams Sourcebook on Technology Options for Safeguarding the Ozone Layer and the Global Climate System.” Prepared by Caleb Management Services.June 22, 2015

61 United Nations Environment Programme (UNEP). 2010b. Multilateral Fund for the Implementation of the Montreal Protocol (2011), Project Proposal: China, UNEP/OzL.Pro/ExCom/62/26 . Available online at: http://www.multilateralfund.org/62/English%20Document/1/6226.pdf

.
U nited Nations Environment Programme (UNEP). 2011a. Multilateral Fund for the Implementation of the Montreal Protocol (2011), Project Proposal: Egypt, UNEP/OzL.Pro/ExCom/65/32. Available online at: http://www.multilateralfund.org/65/English/1/6532.pdf

. United Nations Environment Programme (UNEP). 2011b. Multilateral Fund for the Implementation of the Montreal Protocol (2011), Project Proposal: China, UNEP/OzL.Pro/ExCom/64/29 . Available o nline at: http://www.multilateralfund.org/MeetingsandDocuments/currentmeeting/64/English/1/6429.pdf

. United Nations Environment Programme (UNEP). 201 2. Multilateral Fund for the Implementation of the Montreal Protocol (2012), Project Proposal: Thailand, UNEP/OzL.Pro/ExCom/68/41. Available online at: http://www.multilateralfund.org/68 /English/1/6841.pdf

. United Nations Environment Programme (UNEP). 2013a. Multilateral Fund for the Implementation of the Montreal Protocol (2013), Report of the Sixty

- eighth Meeting of the Executive Committee, UNEP/OzL.Pro/ExCom/68/53/Corr.1 . Available online at: http://www.multilateralfund.org/68/English/1/6853_and_Corr.1.pdf

. United Nations Environment Programme (UNEP). 2013b. Multilateral Fund for the Implementation of t he Montreal Protocol (2013), Project Proposal: China, UNEP/OzL.Pro/ExCom/69/23

. Available online at: http://www.multilateralfund.org/69/English/1/6923.pdf

.
U.S. Census Bureau. 2007 a . Economic Census. Data accessed via the Industry Statistics Portal, available at: http://www.census.gov/econ/isp/

.
U.S. Census Bureau. 2007b. 2007 Economic Census. Table EC0731SP11: Manufacturing: Summary S eries: Product Summary: Products Statistics: 2007. Available online at: http://factfinder2.census.gov/faces/tableservices/js f/pages/productview.xhtml?pid=ECN_2007_US_31SP11 &prodType=table

.
U.S. Census Bureau. 2011a

. Industry Statistics Portal. Available online at: http://www.census.gov/econ/isp/index.php

.
U.S. Census Bureau. 2011b. Current Industrial Report MA333M: Refrigeration, Air Conditioning and Warm Air Heating Equipment

– 2010. Available online at: http://www.census.gov/m anufacturing/cir/historical_data/ma333m/

.
U.S. Census Bureau. 2012. Agriculture. Available online at: http://www.census.gov/prod/2011pubs/12statab/agricult.pdf

U.S. Census Bureau. 2013. North American Industry Classification System (NAICS) Industry Statistics Sampler. Available online at: http://www.census.gov/eos/www/naics/ . Accessed February 2013.

U.S. Census Bureau. 2014. Per sonal Communication with NAICS Subject Expert on April 16 th , 2014. Contact information available online at: http://www.census.gov/aboutus/subjects.htmlJune 22, 2015

62 U.S. Department of Health and Human Service s (HHS). 2013. Household Products Database. Available online at: http://householdproducts.nlm.nih.gov/index.htm. Accessed February 2013

.
U.S. International Trade Commission, May 2013. Available online at: http://www.usitc.gov/publications/332/working_papers/pub_ITS_09_PassengerVehiclesSummary5211.pdf

.
USDA. 2008. Supply Chain Basics: The Dynamics of Change in the U.S. Food Market Environment . Available at: http://www.ams.usda.gov/AMSv1.0/getfile?dDocName=STELPRDC5070995

. University of North Caroline (UNC). 2014. Aerosols: Formulation and Components. The Pharmaceuticals and Compounding Laboratory. Available online at: http://pharmlabs.unc.edu/labs/aeroso ls/formulation.htm

. Ward’s Automotive Group. 2011. Ve hicles in Operation by Country. Available online at: https://www.google.com/search?q=ward's+automovtive+data&oq=ward's+automovtive+data&aqs=chrome ..69i57j0l5.28291j0j4&sourceid=chrome&espv=210&es_sm=93&ie=UTF

- 8# . Accessed October 21, 2013.
Ward’s Automotive Group. 2011. World Vehic le Sales: 2005 through 2011.
Ward’s Automotive Group. 2013. World Vehicle Sales: 2012

. World Resources Institute (WRI). 1996. Ozone Protection of the United States: Elements of Success. Available online at: http://pdf.wri.org/ozoneprotectionunitedstates_bw.pdf . Accessed February, 2013.