39008 Federal Register / Vol. 87, No. 125 / Thursday, June 30, 2022 / Proposed Rules 

(5) In such minimum quantities, types 

of shipments, or for such purposes as 

the Committee with the approval of the 

Secretary may specify. 

(b) No assessment shall be levied on 

fruit shipped under paragraph (a) of this 

section. 

(c) The Committee shall, with the 

approval of the Secretary, prescribe 

such rules, regulations, or safeguards as 

it may deem necessary to prevent 

varieties handled under the provisions 

of this section from entering channels of 

trade for other than the purposes 

authorized by this section. Such rules, 

regulations, and safeguards may include 

the requirements that handlers shall file 

applications with the committee for 

authorization to handle a variety 

pursuant to this section, and that such 

applications be accompanied by a 

certification by the intended purchaser 

or receiver that the variety will not be 

used for any purpose not authorized by 

this section. 

■ 10. Revise § 905.114 to read as 

follows: 

§ 905.114 Redistricting of citrus districts 

and reapportionment of grower members. 

Pursuant to § 905.14, the citrus 

districts and membership allotted each 

district shall be as follows: Citrus 

District One shall include that portion 

of the State of Florida, which is 

bounded by the Suwannee River, the 

Georgia border, the Atlantic Ocean, and 

the Gulf of Mexico. This district shall 

have 10 members and 10 alternates. 

■ 11. Amend § 905.120 by: 

■ a. Revising paragraphs (d) and (e). 

■ b. Removing paragraphs (f) and (g). 

The revisions read as follows: 

§ 905.120 Nomination procedure. 

* * * * * 

(d) At each meeting each eligible 

person may cast one vote for each of the 

persons to be nominated to represent 

the district or group, as the case may be. 

(e) Voting may be by written ballot. If 

written ballots are used, all ballots shall 

be delivered by the chairman or the 

secretary of the meeting to the agent of 

the Secretary. If written ballots are not 

used, the committee’s representative 

shall deliver to the Secretary’s agent a 

listing of each person nominated and a 

count of the number of votes cast for 

each nominee for grower member and 

alternate. Said representative shall also 

provide the agent the register of eligible 

voters present at each meeting, a listing 

of each person nominated, and the 

number of votes cast. 

■ 12. Amend § 905.150 by revising 

paragraph (d) to read as follows: 

§ 905.150 Eligibility requirements for 

public member and alternate member. 

* * * * * 

(d) The public member should be 

nominated by the Citrus Administrative 

Committee and should serve a 2-year 

term which coincides with the term of 

office of grower members of the 

Committee. 

Erin Morris, 

Associate Administrator, Agricultural 

Marketing Service. 

[FR Doc. 2022–13934 Filed 6–29–22; 8:45 am] 

BILLING CODE P 

DEPARTMENT OF ENERGY 

10 CFR Part 431 

[EERE–2017–BT–STD–0009] 

RIN 1904–AD79 

Energy Conservation Program: Energy 

Conservation Standards for Walk-In 

Coolers and Freezers 

AGENCY: Office of Energy Efficiency and 

Renewable Energy, Department of 

Energy. 

ACTION: Notification of availability of 

preliminary technical support document 

and request for comment. 

SUMMARY: The U.S. Department of 

Energy (‘‘DOE’’ or ‘‘the Department’’) 

announces the availability of the 

preliminary analysis it has conducted 

for purposes of evaluating the need for 

amending the current energy 

conservation standards for walk-in 

coolers and freezers (‘‘walk-ins’’ or 

‘‘WICFs’’). The analysis is set forth in 

the Department’s accompanying 

preliminary technical support document 

(‘‘TSD’’) for this rulemaking. DOE will 

hold a public meeting via webinar to 

discuss and receive comment on the 

preliminary analysis. The meeting will 

cover the analytical framework, models, 

and tools that DOE is using to evaluate 

potential standards; the results of 

preliminary analyses performed by 

DOE; the potential energy conservation 

standard levels derived from these 

analyses (if DOE determines that 

proposed amendments are necessary); 

and other relevant issues. In addition, 

DOE encourages written comments on 

these subjects. 

DATES: 

Comments: Written comments and 

information will be accepted on or 

before, August 29, 2022. 

Meeting: DOE will hold a webinar on 

Friday, July, 22, 2022, from 1 to 4 p.m. 

See section IV, ‘‘Public Participation,’’ 

for webinar registration information, 

participant instructions and information 

about the capabilities available to 

webinar participants. 

ADDRESSES: Interested persons are 

encouraged to submit comments using 

the Federal eRulemaking Portal at 

https://www.regulations.gov, under 

docket number EERE–2017–BT–STD– 

0009. Follow the instructions for 

submitting comments. Alternatively, 

interested persons may submit 

comments, identified by docket number 

EERE–2017–BT–STD–0009, by any of 

the following methods: 

(1) Email: WICF2017STD0009@

ee.doe.gov. Include the docket number 

EERE–2017–BT–STD–0009 in the 

subject line of the message. 

(2) Postal Mail: Appliance and 

Equipment Standards Program, U.S. 

Department of Energy, Building 

Technologies Office, Mailstop EE–5B, 

1000 Independence Avenue SW, 

Washington, DC 20585–0121. 

Telephone: (202) 287–1445. If possible, 

please submit all items on a compact 

disc (‘‘CD’’), in which case it is not 

necessary to include printed copies. 

(3) Hand Delivery/Courier: Appliance 

and Equipment Standards Program, U.S. 

Department of Energy, Building 

Technologies Office, 950 L’Enfant Plaza 

SW, 6th Floor, Washington, DC 20024. 

Telephone: (202) 287–1445. If possible, 

please submit all items on a CD, in 

which case it is not necessary to include 

printed copies. 

No telefacsimiles (‘‘faxes’’) will be 

accepted. For detailed instructions on 

submitting comments and additional 

information on this process, see section 

IV of this document. 

To inform interested parties and to 

facilitate this rulemaking process, DOE 

has prepared an agenda, a preliminary 

TSD, and briefing materials, which are 

available on the DOE website at: https:// 

www1.eere.energy.gov/buildings/ 

appliance_standards/standards.aspx?

productid=56&action=viewlive. 

Docket: The docket for this activity, 

which includes Federal Register 

notices, comments, public meeting 

transcripts, and other supporting 

documents/materials, is available for 

review at https://www.regulations.gov. 

All documents in the docket are listed 

in the https://www.regulations.gov 

index. However, some documents listed 

in the index, such as those containing 

information that is exempt from public 

disclosure, may not be publicly 

available. 

The docket web page can be found at 

https://www.regulations.gov/docket/ 

EERE-2017-BT-STD-0009. The docket 

web page contains instructions on how 

to access all documents, including 


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Federal Register / Vol. 87, No. 125 / Thursday, June 30, 2022 / Proposed Rules 39009 

1All references to EPCA in this document refer 

to the statute as amended through the Energy Act 

of 2020, Public Law 116–260 (Dec. 27, 2020), which 

reflect the last statutory amendments that impact 

Parts A and A–1 of EPCA. 2For editorial reasons, upon codification in the 

U.S. Code, Part C was redesignated Part A–1. 

public comments in the docket. See 

section IV of this document for 

information on how to submit 

comments through https://

www.regulations.gov. 

FOR FURTHER INFORMATION CONTACT: 

Dr. Stephanie Johnson, U.S. 

Department of Energy, Office of Energy 

Efficiency and Renewable Energy, 

Building Technologies, EE–5B, 1000 

Independence Avenue SW, Washington, 

DC 20585–0121. Telephone: (202) 287– 

1943. Email: ApplianceStandards 

Questions@ee.doe.gov. 

Mr. Michael Kido, U.S. Department of 

Energy, Office of the General Counsel, 

GC–33, 1000 Independence Avenue SW, 

Washington, DC 20585–0121. 

Telephone: (202) 586–8145. Email: 

Michael.Kido@hq.doe.gov. 

For further information on how to 

submit a comment, review other public 

comments and the docket, or participate 

in the public meeting, contact the 

Appliance and Equipment Standards 

Program staff at (202) 287–1445 or by 

email: ApplianceStandardsQuestions@

ee.doe.gov. 

SUPPLEMENTARY INFORMATION: 

Table of Contents 

I. Introduction 

A. Authority 

B. Rulemaking Process 

C. Deviation From Appendix A 

II. Background 

A. Current Standards 

B. Current Process 

III. Summary of the Analyses Performed by 

DOE 

A. Market and Technology Assessment 

B. Screening Analysis 

C. Engineering Analysis 

D. Markups Analysis 

E. Energy Use Analysis 

F. Life-Cycle Cost and Payback Period 

Analyses 

G. National Impact Analysis 

IV. Public Participation 

A. Participation in the Webinar 

B. Procedure for Submitting Prepared 

General Statements for Distribution 

C. Conduct of the Webinar 

D. Submission of Comments 

V. Approval of the Office of the Secretary 

I. Introduction 

A. Authority 

The Energy Policy and Conservation 

Act, as amended (‘‘EPCA’’),1 authorizes 

DOE to regulate the energy efficiency of 

a number of consumer products and 

certain industrial equipment. (42 U.S.C. 

6291–6317) Title III, Part C 2 of EPCA 

established the Energy Conservation 

Program for Certain Industrial 

Equipment. This equipment includes 

walk-in coolers and walk-in freezers, the 

subject of this document. (42 U.S.C. 

6311(1)(G)) 

EPCA prescribes a set of basic 

requirements for walk-ins. First, all 

walk-in doors narrower than 3 feet 9 

inches and shorter than 7 feet must have 

automatic door closers that firmly close 

all walk-in doors that have been closed 

to within 1 inch of full closure. All 

walk-ins must also have strip doors, 

spring hinged doors, or other methods 

of minimizing infiltration when doors 

are open. Additionally, walk-ins must 

contain wall, ceiling, and door 

insulation of at least R–25 for coolers 

and R–32 for freezers, excluding glazed 

portions of doors and structural 

members, and floor insulation of at least 

R–28 for freezers. Walk-in evaporator 

fan motors of under 1 horsepower 

(‘‘hp’’) and less than 460 volts must be 

electronically commutated motors 

(brushless direct current motors) or 

three-phase motors, and walk-in 

condenser fan motors of under 1 

horsepower must use permanent split 

capacitor motors, electronically 

commutated motors, or three-phase 

motors. Interior light sources must have 

an efficacy of 40 lumens per watt or 

more, including any ballast losses; lessefficacious lights may only be used in 

conjunction with a timer or device that 

turns off the lights within 15 minutes of 

when the walk-in is unoccupied. (See 

42 U.S.C. 6313(f)(1)) 

Additionally, EPCA requires that 

walk-in freezers with transparent reachin doors and windows must have triplepane glass with either heat-reflective 

treated glass or gas fill. Transparent 

walk-in cooler doors and windows must 

have either double-pane glass with heatreflective treated glass and gas fill or 

triple-pane glass with heat-reflective 

treated glass or gas fill. (42 U.S.C. 

6313(f)(3)(A)–(B)) EPCA also prescribes 

specific anti-sweat heater-related 

requirements: Walk-ins without antisweat heater controls must have a heater 

power draw of no more than 7.1 or 3.0 

watts per square foot of door opening for 

freezers and coolers, respectively. If 

walk-ins have a heater power draw of 

more than 7.1 or 3.0 watts per square 

foot of door opening for freezers and 

coolers, respectively, then the walk-in 

must have anti-sweat heater controls 

that reduce the energy use of the heater 

in a quantity corresponding to the 

relative humidity of the air outside the 

door or to the condensation on the inner 

glass pane. See 42 U.S.C. 6313(f)(3)(C)– 

(D). 

Additionally, EPCA prescribed two 

cycles of WICF-specific rulemakings; 

the first to establish performance-based 

standards that achieve the maximum 

improvement in energy that the 

Secretary determines is technologically 

feasible and economically justified, and 

the second to determine whether to 

amend those standards. (42 U.S.C. 

6313(f)(4) and (5)) DOE has satisfied the 

first of these requirements. See 79 FR 

32050 (June 3, 2014) (establishing WICF 

performance standards) and 82 FR 

31808 (July 10, 2017) (addressing prior 

rulemaking errors by amending certain 

refrigeration system class standards). 

This document addresses the second 

cycle of rulemaking. 

EPCA further provides that, not later 

than 6 years after the issuance of any 

final rule establishing or amending a 

standard, DOE must publish either a 

notification of determination that 

standards for the equipment do not need 

to be amended, or a notice of proposed 

rulemaking (‘‘NOPR’’) including new 

proposed energy conservation standards 

(proceeding to a final rule, as 

appropriate). (42 U.S.C. 6316(a); 42 

U.S.C. 6295(m)(1)) Not later than three 

years after issuance of a final 

determination not to amend standards, 

DOE must publish either a notice of 

determination that standards for the 

equipment do not need to be amended, 

or a NOPR including new proposed 

energy conservation standards 

(proceeding to a final rule, as 

appropriate). (42 U.S.C. 6316(a); 42 

U.S.C. 6295(m)(3)(B)) 

Under EPCA, any new or amended 

energy conservation standard must be 

designed to achieve the maximum 

improvement in energy efficiency that 

DOE determines is technologically 

feasible and economically justified. (42 

U.S.C. 6316(a); 42 U.S.C. 6295(o)(2)(A)) 

Furthermore, the new or amended 

standard must result in a significant 

conservation of energy. (42 U.S.C. 

6316(a); 42 U.S.C. 6295(o)(3)(B)) 

DOE is publishing this Preliminary 

Analysis to collect data and information 

to inform its decision consistent with its 

obligations under EPCA. 

B. Rulemaking Process 

DOE must follow specific statutory 

criteria for prescribing new or amended 

standards for covered equipment, 

including walk-ins. As noted, EPCA 

requires that any new or amended 

energy conservation standard prescribed 

by the Secretary of Energy (‘‘Secretary’’) 

be designed to achieve the maximum 

improvement in energy efficiency (or 

water efficiency for certain products 

specified by EPCA) that is 

technologically feasible and 


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3Procedures, Interpretations, and Policies for 

Consideration in New or Revised Energy 

Conservation Standards and Test Procedures for 

Consumer Products and Commercial/Industrial 

Equipment, 86 FR 70892, 70901 (Dec. 13, 2021). 4See Executive Order 14008, 86 FR 7619 (Feb. 1, 

2021) (‘‘Tackling the Climate Crisis at Home and 

Abroad’’). 

5On March 16, 2022, the Fifth Circuit Court of 

Appeals (No. 22–30087) granted the Federal 

government’s emergency motion for stay pending 

appeal of the February 11, 2022, preliminary 

injunction issued in Louisiana v. Biden, No. 21–cv– 

1074–JDC–KK (W.D. La.). As a result of the Fifth 

Circuit’s order, the preliminary injunction is no 

longer in effect, pending resolution of the Federal 

government’s appeal of that injunction or a further 

court order. Among other things, the preliminary 

injunction enjoined the defendants in that case 

from ‘‘adopting, employing, treating as binding, or 

relying upon’’ the interim estimates of the social 

cost of greenhouse gases—which were issued by the 

Interagency Working Group on the Social Cost of 

Greenhouse Gases on February 26, 2021—to 

monetize the benefits of reducing greenhouse gas 

emissions. In the absence of further intervening 

court orders, DOE will revert to its approach prior 

to the injunction and present monetized benefits 

where appropriate and permissible under law. 

economically justified. (42 U.S.C. 

6316(a); 42 U.S.C. 6295(o)(2)(A)) 

Furthermore, DOE may not adopt any 

standard that would not result in the 

significant conservation of energy. (42 

U.S.C. 6316(a); 42 U.S.C. 6295(o)(3)) 

The significance of energy savings 

offered by a new or amended energy 

conservation standard cannot be 

determined without knowledge of the 

specific circumstances surrounding a 

given rulemaking.3 For example, the 

United States has now rejoined the Paris 

Agreement on February 19, 2021. As 

part of that agreement, the United States 

has committed to reducing greenhouse 

gas (‘‘GHG’’) emissions in order to limit 

the rise in mean global temperature.4 As 

such, energy savings that reduce GHG 

emission have taken on greater 

importance. Additionally, some covered 

products and equipment have most of 

their energy consumption occur during 

periods of peak energy demand. The 

impacts of these products on the energy 

infrastructure can be more pronounced 

than products with relatively constant 

demand. In evaluating the significance 

of energy savings, DOE considers 

differences in primary energy and FFC 

effects for different covered products 

and equipment when determining 

whether energy savings are significant. 

Primary energy and FFC effects include 

the energy consumed in electricity 

production (depending on load shape), 

in distribution and transmission, and in 

extracting, processing, and transporting 

primary fuels (i.e., coal, natural gas, 

petroleum fuels), and thus present a 

more complete picture of the impacts of 

energy conservation standards. 

Accordingly, DOE evaluates the 

significance of energy savings on a caseby-case basis. 

DOE has initially determined the 

energy savings for the candidate 

standard levels evaluated in this 

preliminary analysis rulemaking are 

‘‘significant’’ within the meaning of 42 

U.S.C. 6295(o)(3)(B). 

To determine whether a standard is 

economically justified, EPCA requires 

that DOE determine whether the 

benefits of the standard exceed its 

burdens by considering, to the greatest 

extent practicable, the following seven 

factors: 

(1) The economic impact of the standard 

on the manufacturers and consumers of the 

products subject to the standard; 

(2) The savings in operating costs 

throughout the estimated average life of the 

covered products in the type (or class) 

compared to any increase in the price, initial 

charges, or maintenance expenses for the 

covered products that are likely to result 

from the standard; 

(3) The total projected amount of energy (or 

as applicable, water) savings likely to result 

directly from the standard; 

(4) Any lessening of the utility or the 

performance of the products likely to result 

from the standard; 

(5) The impact of any lessening of 

competition, as determined in writing by the 

Attorney General, that is likely to result from 

the standard; 

(6) The need for national energy and water 

conservation; and 

(7) Other factors the Secretary of Energy 

(Secretary) considers relevant. 

(42 U.S.C. 6316(a); 42 U.S.C. 

6295(o)(2)(B)(i)(I)–(VII)) 

DOE fulfills these and other 

applicable requirements by conducting 

a series of analyses throughout the 

rulemaking process. Table I.1 shows the 

individual analyses that are performed 

to satisfy each of the requirements 

within EPCA. 

TABLE I.1—EPCA REQUIREMENTS AND CORRESPONDING DOE ANALYSIS

EPCA requirement Corresponding DOE analysis 

Significant Energy Savings ................................................ • Shipments Analysis. 

• National Impact Analysis. 

• Energy Use Analysis. 

Technological Feasibility .................................................... • Market and Technology Assessment. 

• Screening Analysis. 

• Engineering Analysis. 

Economic Justification: 

1. Economic impact on manufacturers and consumers.• Manufacturer Impact Analysis. 

• Life-Cycle Cost and Payback Period Analysis. 

• Life-Cycle Cost Subgroup Analysis. 

• Shipments Analysis. 

2. Lifetime operating cost savings compared to increased cost for the product.• Markups for Equipment Price Analysis. 

• Energy Use Analysis. 

• Life-Cycle Cost and Payback Period Analysis. 

3. Total projected energy savings .............................. • Shipments Analysis. 

• National Impact Analysis. 

4. Impact on utility or performance ............................. • Screening Analysis. 

• Engineering Analysis. 

5. Impact of any lessening of competition .................. • Manufacturer Impact Analysis. 

6. Need for national energy and water conservation • Shipments Analysis. 

• National Impact Analysis. 

7. Other factors the Secretary considers relevant ...... • Employment Impact Analysis. 

• Utility Impact Analysis. 

• Emissions Analysis. 

• Monetization of Emission Reductions Benefits.5

• Regulatory Impact Analysis. 


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6The thirteen other standards established in the 

June 2014 Final Rule (i.e., the four standards 

applicable to dedicated condensing refrigeration 

systems operating at medium-temperatures; the 

three standards applicable to panels; and the six 

standards applicable to doors) were not vacated. 

Further, EPCA establishes a rebuttable 

presumption that a standard is 

economically justified if the Secretary 

finds that the additional cost to the 

consumer of purchasing equipment 

complying with an energy conservation 

standard level will be less than three 

times the value of the energy savings 

during the first year that the consumer 

will receive as a result of the standard, 

as calculated under the applicable test 

procedure. (42 U.S.C. 6316(a); 42 U.S.C. 

6295(o)(2)(B)(iii)) 

EPCA also contains what is known as 

an ‘‘anti-backsliding’’ provision, which 

prevents the Secretary from prescribing 

any amended standard that either 

increases the maximum allowable 

energy use or decreases the minimum 

required energy efficiency of a covered 

equipment. (42 U.S.C. 6316(a); 42 U.S.C. 

6295(o)(1)) Also, the Secretary may not 

prescribe an amended or new standard 

if interested persons have established by 

a preponderance of the evidence that 

the standard is likely to result in the 

unavailability in the United States in 

any covered equipment type (or class) of 

performance characteristics (including 

reliability), features, sizes, capacities, 

and volumes that are substantially the 

same as those generally available in the 

United States. (42 U.S.C. 6316(a); 42 

U.S.C. 6295(o)(4)) 

Additionally, EPCA specifies 

requirements when promulgating an 

energy conservation standard for 

covered equipment that has two or more 

subcategories. DOE must specify a 

different standard level for a type or 

class of equipment that has the same 

function or intended use, if DOE 

determines that products within such 

group: (A) consume a different kind of 

energy from that consumed by other 

covered equipment within such type (or 

class); or (B) have a capacity or other 

performance-related feature which other 

equipment within such type (or class) 

do not have and such feature justifies a 

higher or lower standard. (42 U.S.C. 

6316(a); 42 U.S.C. 6295(q)(1)) In 

determining whether a performancerelated feature justifies a different 

standard for a group of products, DOE 

must consider such factors as the utility 

to the consumer of the feature and other 

factors DOE deems appropriate. Id. Any 

rule prescribing such a standard must 

include an explanation of the basis on 

which such higher or lower level was 

established. (42 U.S.C. 6316(a); 42 

U.S.C. 6295(q)(2)) 

Before proposing a standard, DOE 

typically seeks public input on the 

analytical framework, models, and tools 

that DOE intends to use to evaluate 

standards for the equipment at issue and 

the results of preliminary analyses DOE 

performed for the product. 

DOE is examining whether to amend 

the current standards pursuant to its 

obligations under EPCA. This 

notification announces the availability 

of the preliminary TSD, which details 

the preliminary analyses and 

summarizes the preliminary results of 

DOE’s analyses. In addition, DOE is 

announcing a public meeting to solicit 

feedback from interested parties on its 

analytical framework, models, and 

preliminary results. 

C. Deviation From Appendix A 

In accordance with section 3(a) of 10 

CFR part 430, subpart C, appendix A 

(‘‘appendix A’’), applicable to walk-ins 

under 10 CFR 431.4, DOE notes that it 

is deviating from the provision in 

appendix A regarding the pre-NOPR 

stages for an energy conservation 

standards rulemaking. Section 6(a)(2) of 

appendix A states that if the Department 

determines it is appropriate to proceed 

with a rulemaking (after initiating the 

rulemaking process through an early 

assessment), the preliminary stages of a 

rulemaking to issue or amend an energy 

conservation standard that DOE will 

undertake will be a framework 

document and preliminary analysis, or 

an advance notice of proposed 

rulemaking (‘‘ANOPR’’). DOE is opting 

to deviate from this provision by 

publishing a preliminary analysis 

without a framework document. A 

framework document is intended to 

introduce and summarize the various 

analyses DOE conducts during the 

rulemaking process and requests initial 

feedback from interested parties. As 

discussed further in the following 

section, prior to this notification of the 

preliminary analysis, DOE issued an 

early assessment request for information 

on July 16, 2021 (‘‘July 2021 RFI’’) in 

which DOE identified and sought data, 

information, and comment to evaluate 

whether the existing energy 

conservation standards for walk-ins 

should be amended. 86 FR 37687, 

37689. DOE provided a 30-day comment 

period for the RFI. DOE intends to rely 

on substantively the same analytical 

methods as those used in the most 

recent rulemakings for walk-ins, making 

publication of a framework document 

largely redundant with the July 2021 

RFI. As such, DOE is not publishing a 

framework document. 

DOE notes that it is also deviating 

from the provision in appendix A 

regarding the length of comment periods 

for the pre-NOPR stages for an energy 

conservation standards rulemaking. 

Section 6(d)(2) of appendix A specifies 

that the length of the public comment 

period for pre-NOPR rulemaking 

documents will not be less than 75 

calendar days. For the preliminary 

analysis, DOE has opted instead to 

provide a 60-day comment period. As 

stated, DOE requested comment in the 

July 2021 RFI on the analysis conducted 

in support of the last energy 

conservation standard rulemaking for 

WICFs. Given that the analysis will 

largely remain the same, and in light of 

the 30-day comment period DOE has 

already provided with its July 2021 RFI, 

DOE has determined that a 60-day 

comment period is sufficient to enable 

interested parties to review the tentative 

methodologies and accompanying 

analysis to develop meaningful 

comments in response to the 

preliminary TSD. 

II. Background 

A. Current Standards 

In a final rule published on June 3, 

2014 (‘‘June 2014 Final Rule’’), DOE 

adopted the current energy conservation 

standards for walk-in doors, panels, and 

medium-temperature dedicated 

condensing systems manufactured on 

and after June 5, 2017. 79 FR 32050. In 

the June 2014 Final Rule, DOE also 

adopted standards for other classes of 

refrigeration systems; however, after 

publication of the June 2014 Final Rule, 

the Air-Conditioning, Heating and 

Refrigeration Institute (‘‘AHRI’’) and 

Lennox International, Inc. (‘‘Lennox’’), a 

manufacturer of walk-in refrigeration 

systems, filed petitions for review of 

DOE’s final rule and DOE’s subsequent 

denial of a petition for reconsideration 

of the rule (79 FR 59090 (October 1, 

2014)) with the United States Court of 

Appeals for the Fifth Circuit. Lennox 

Int’l v. Dep’t of Energy, Case No. 14– 

60535 (5th Cir.). As a result of this 

litigation, a settlement agreement was 

reached to address, and a controlling 

order from the Fifth Circuit vacated, 

standards for six of the refrigeration 

system equipment classes—the two 

energy conservation standards 

applicable to multiplex condensing 

refrigeration systems (subsequently renamed as ‘‘unit coolers’’) operating at 

medium and low temperatures and the 

four energy conservation standards 

applicable to dedicated condensing 

refrigeration systems operating at low 

temperatures.6 After the Fifth Circuit 

issued its order, DOE established a 

Working Group to negotiate energy 


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conservation standards to replace the 

six vacated standards. 80 FR 46521 

(August 5, 2015). The Working Group 

assembled its recommendations into a 

Term Sheet (See Docket EERE–2015– 

BT–STD–0016–0056) that was presented 

to, and approved by, the Appliance 

Standards and Rulemaking Federal 

Advisory Committee (‘‘ASRAC’’) on 

December 18, 2015. (EERE–2015–BT– 

STD–0016–0055 at p. 11) 

In a final rule published on July 10, 

2017 (‘‘July 2017 Final Rule’’), DOE 

published a final rule adopting current 

energy conservation standards for the 

six classes of walk-in refrigeration 

systems for which the prior standards 

were vacated—specifically, unit coolers 

and low-temperature dedicated 

condensing systems manufactured on 

and after July 10, 2020. 82 FR 31808. 

These standards are set forth in DOE’s 

regulations at 10 CFR 431.306 and are 

repeated in Tables II.1 through II.3. 

TABLE II.1—FEDERAL ENERGY CONSERVATION STANDARDS FOR WALK-IN COOLERS AND WALK-IN FREEZER DOORS

Equipment class 

Equations for maximum 

daily energy use 

(kWh/day) 

Display door, medium temperature ................................................................................................. 0.04 × Add + 0.41 

Display door, low temperature ........................................................................................................ 0.15 × Add + 0.29 

Passage door, medium temperature ............................................................................................... 0.05 × And + 1.7 

Passage door, low temperature ...................................................................................................... 0.14 × And + 4.8 

Freight door, medium temperature .................................................................................................. 0.04 × And + 1.9 

Freight door, low temperature ......................................................................................................... 0.12 × And + 5.6 

Add or And = surface area of the display door or non-display door, respectively, expressed in ft2, as determined in appendix A to subpart R of 

10 CFR part 431. 

TABLE II.2—FEDERAL ENERGY CONSERVATION STANDARDS FOR WALK-IN COOLERS AND WALK-IN FREEZER PANELS

Equipment class Minimum R-value 

(h-ft2-°F/Btu) 

Wall or ceiling panels, medium temperature ................................................................................................................................. 25 

Wall or ceiling panels, low temperature ........................................................................................................................................ 32 

Floor panels, low temperature ....................................................................................................................................................... 28 

TABLE II.3—FEDERAL ENERGY CONSERVATION STANDARDS FOR WALK-IN COOLERS AND WALK-IN FREEZER

REFRIGERATION SYSTEMS

Equipment class Minimum AWEF 

(Btu/W-h) 

Dedicated condensing system, medium temperature, indoor ......................................................... 5.61 

Dedicated condensing system, medium temperature, outdoor ...................................................... 7.60 

Dedicated condensing system, low temperature, indoor with a net capacity (qnet) of <6,500 Btu/ 

h.

9.091 × 10¥5 × qnet + 1.81 

Dedicated condensing system, low temperature, indoor with a net capacity (qnet) of ≥6,500 Btu/ 

h.

2.40 

Dedicated condensing system, low temperature, outdoor with a net capacity (qnet) of <6,500 

Btu/h.

6.522 × 10¥5 × qnet + 2.73 

Dedicated condensing system, low temperature, outdoor with a net capacity (qnet) of ≥6,500 

Btu/h.

3.15 

Unit cooler, medium temperature .................................................................................................... 9.00 

Unit cooler, low temperature, indoor with a net capacity (qnet) of <15,500 Btu/h .......................... 1.575 × 10¥5 × qnet + 3.91 

Unit cooler, low temperature, indoor with a net capacity (qnet) of ≥15,500 Btu/h .......................... 4.15 

B. Current Process 

As noted earlier, DOE published an 

RFI to initiate an early assessment 

review to determine whether any new or 

amended standards would satisfy the 

relevant requirements of EPCA for a 

new or amended energy conservation 

standard for walk-ins and to solicit 

relevant information from the public. 86 

FR 37687. Through the RFI, DOE sought 

data and information to, among other 

things, help the agency determine 

whether DOE should propose a ‘‘no new 

standard’’ determination because a more 

stringent standard: (1) would not result 

in a significant savings of energy; (2) is 

not technologically feasible; (3) is not 

economically justified; or (4) any 

combination of foregoing. Id. 

Comments received to date as part of 

the current process have helped DOE 

identify and resolve issues related to the 

preliminary analyses. Chapter 2 of the 

preliminary TSD summarizes and 

addresses the comments received. 

III. Summary of the Analyses 

Performed by DOE 

A. Market and Technology Assessment 

DOE develops information in the 

market and technology assessment that 

provides an overall picture of the 

market for the products concerned, 

including general characteristics of the 

products, the industry structure, 

manufacturers, market characteristics, 

and technologies used in the products. 

This activity includes both quantitative 

and qualitative assessments, based 

primarily on publicly available 

information. The subjects addressed in 

the market and technology assessment 

include: (1) a determination of the scope 

of the rulemaking and product classes, 

(2) manufacturers and industry 

structure, (3) existing efficiency 

programs, (4) shipments information, (5) 

market and industry trends, and (6) 

technologies or design options that 


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7Because the projected price of standardscompliant products is typically higher than the 

price of baseline products, using the same markup 

for the incremental cost and the baseline cost would 

result in higher per-unit operating profit. While 

such an outcome is possible, DOE maintains that in 

markets that are reasonably competitive it is 

unlikely that standards would lead to a sustainable 

increase in profitability in the long run. 

could improve the energy efficiency of 

the product. 

See chapter 3 of the preliminary TSD 

for further discussion of the market and 

technology assessment. 

B. Screening Analysis 

DOE uses the following five screening 

criteria to determine which technology 

options are suitable for further 

consideration in an energy conservation 

standards rulemaking: 

(1) Technological feasibility. 

Technologies that are not incorporated 

in commercial products or in working 

prototypes will not be considered 

further. 

(2) Practicability to manufacture, 

install, and service. If it is determined 

that mass production and reliable 

installation and servicing of a 

technology in commercial products 

could not be achieved on the scale 

necessary to serve the relevant market at 

the time of the projected compliance 

date of the standard, then that 

technology will not be considered 

further. 

(3) Impacts on product utility or 

product availability. If it is determined 

that a technology would have a 

significant adverse impact on the utility 

of the product for significant subgroups 

of consumers or would result in the 

unavailability of any covered product 

type with performance characteristics 

(including reliability), features, sizes, 

capacities, and volumes that are 

substantially the same as products 

generally available in the United States 

at the time, it will not be considered 

further. 

(4) Adverse impacts on health or 

safety. If it is determined that a 

technology would have significant 

adverse impacts on health or safety, it 

will not be considered further. 

(5) Unique-pathway proprietary 

technologies. If a design option utilizes 

proprietary technology that represents a 

unique pathway to achieving a given 

efficiency level, that technology will not 

be considered further due to the 

potential for monopolistic concerns. 

10 CFR part 430, subpart C, appendix 

A, sections 6(b)(3) and 7(b). 

If DOE determines that a technology, 

or a combination of technologies, fails to 

meet one or more of the listed five 

criteria, it will be excluded from further 

consideration in the engineering 

analysis. 

See chapter 4 of the preliminary TSD 

for further discussion of the screening 

analysis. 

C. Engineering Analysis 

The purpose of the engineering 

analysis is to establish the relationship 

between the efficiency and cost of walkins. There are two elements to consider 

in the engineering analysis; the 

selection of efficiency levels to analyze 

(i.e., the ‘‘efficiency analysis’’) and the 

determination of equipment cost at each 

efficiency level (i.e., the ‘‘cost 

analysis’’). In determining the 

performance of higher-efficiency 

equipment, DOE considers technologies 

and design option combinations not 

eliminated by the screening analysis. 

For each equipment class, DOE 

estimates the manufacturer production 

cost (‘‘MPC’’) for the baseline as well as 

higher efficiency levels. The output of 

the engineering analysis is a set of costefficiency ‘‘curves’’ that are used in 

downstream analyses (i.e., the LCC and 

PBP analyses and the NIA). 

DOE converts the MPC to the 

manufacturer selling price (‘‘MSP’’) by 

applying a manufacturer markup. The 

MSP is the price the manufacturer 

charges its first customer, when selling 

into the equipment distribution 

channels. The manufacturer markup 

accounts for manufacturer nonproduction costs and profit margin. DOE 

developed the manufacturer markup by 

examining publicly available financial 

information for manufacturers of the 

covered product. 

See Chapter 5 of the preliminary TSD 

for additional detail on the engineering 

analysis. 

D. Markups Analysis 

The markups analysis develops 

appropriate markups (e.g., retailer 

markups, distributor markups, 

contractor markups) in the distribution 

chain and sales taxes to convert MSP 

estimates derived in the engineering 

analysis to consumer prices, which are 

then used in the LCC and PBP analysis. 

At each step in the distribution channel, 

companies mark up the price of the 

equipment to cover business costs and 

profit margin. 

DOE developed baseline and 

incremental markups for each agent in 

the distribution chain. Baseline 

markups are applied to the price of 

products with baseline efficiency, while 

incremental markups are applied to the 

difference in price between baseline and 

higher-efficiency models (the 

incremental cost increase). The 

incremental markup is typically less 

than the baseline markup and is 

designed to maintain similar per-unit 

operating profit before and after new or 

amended standards.7

Chapter 6 of the preliminary TSD 

provides details on DOE’s development 

of markups for walk-ins. 

E. Energy Use Analysis 

The purpose of the energy use 

analysis is to determine the annual 

energy consumption of walk-ins at 

different efficiencies in representative 

U.S. commercial buildings and to assess 

the energy savings potential of increased 

walk-in efficiency. The energy use 

analysis estimates the range of energy 

use of walk-ins in the field (i.e., as they 

are actually used by consumers). The 

energy use analysis provides the basis 

for other analyses DOE performed, 

particularly assessments of the energy 

savings and the savings in consumer 

operating costs that could result from 

adoption of amended or new standards. 

Chapter 7 of the preliminary TSD 

addresses the energy use analysis. 

F. Life-Cycle Cost and Payback Period 

Analyses 

The effect of new or amended energy 

conservation standards on individual 

consumers usually involves a reduction 

in operating cost and an increase in 

purchase cost. DOE used the following 

two metrics to measure consumer 

impacts: 

• The LCC is the total consumer 

expense of an appliance or equipment 

over the life of that product, consisting 

of total installed cost (MSP, distribution 

chain markups, sales tax, and 

installation costs) plus operating costs 

(expenses for energy use, maintenance, 

and repair). To compute the operating 

costs, DOE discounts future operating 

costs to the time of purchase and sums 

them over the lifetime of the product. 

• The PBP is the estimated amount of 

time (in years) it takes consumers to 

recover the increased purchase cost 

(including installation) of a moreefficient equipment through lower 

operating costs. DOE calculates the PBP 

by dividing the change in purchase cost 

at higher efficiency levels by the change 

in annual operating cost for the year that 

amended or new standards are assumed 

to take effect. 

Chapter 8 of the preliminary TSD 

addresses the LCC and PBP analyses. 

G. National Impact Analysis 

The NIA estimates the national energy 

savings (‘‘NES’’) and the net present 

value (‘‘NPV’’) of total consumer costs 

and savings expected to result from 

amended standards at specific efficiency 


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8The NIA accounts for impacts in the 50 states 

and U.S. territories. 

levels (referred to as candidate standard 

levels).8 DOE calculates the NES and 

NPV for the potential standard levels 

considered based on projections of 

annual equipment shipments, along 

with the annual energy consumption 

and total installed cost data from the 

energy use and LCC analyses. For the 

present analysis, DOE projected the 

energy savings, operating cost savings, 

equipment costs, and NPV of consumer 

benefits over the lifetime of walk-ins 

sold from 2027 through 2056. 

DOE evaluates the impacts of new or 

amended standards by comparing a case 

without such standards with standardscase projections (‘‘no-new-standards 

case’’). The no-new-standards case 

characterizes energy use and consumer 

costs for each equipment class in the 

absence of new or amended energy 

conservation standards. For this 

projection, DOE considers historical 

trends in efficiency and various forces 

that are likely to affect the mix of 

efficiencies over time. DOE compares 

the no-new-standards case with 

projections characterizing the market for 

each equipment class if DOE adopted 

new or amended standards at specific 

energy efficiency levels for that class. 

For each efficiency level, DOE considers 

how a given standard would likely 

affect the market shares of equipment 

with efficiencies greater than the 

standard. 

DOE uses a spreadsheet model to 

calculate the energy savings and the 

national consumer costs and savings 

from each efficiency level. Interested 

parties can review DOE’s analyses by 

changing various input quantities 

within the spreadsheet. The NIA 

spreadsheet model uses typical values 

(as opposed to probability distributions) 

as inputs. Critical inputs to this analysis 

include shipments projections, 

estimated equipment lifetimes, 

equipment installed costs and operating 

costs, equipment annual energy 

consumption, the base case efficiency 

projection, and discount rates. 

DOE estimates a combined total of 

3.647 quads of FFC energy savings at the 

max-tech efficiency levels for walk-in 

doors, panels, and refrigeration systems 

may result if amended standards are 

implemented. 

Chapter 10 of the preliminary TSD 

addresses the NIA. 

IV. Public Participation 

DOE invites public engagement in this 

process through participation in the 

webinar and submission of written 

comments and data. After the webinar 

and the closing of the comment period, 

DOE will consider all timely-submitted 

comments and additional information 

obtained from interested parties, as well 

as information obtained through further 

analyses. Following such consideration, 

the Department will publish either a 

determination that the standards for 

walk-ins need not be amended or a 

NOPR proposing to amend those 

standards. The NOPR, should one be 

issued, would include proposed energy 

conservation standards for the products 

covered by this rulemaking, and 

members of the public would be given 

an opportunity to submit written and 

oral comments on the proposed 

standards. 

A. Participation in the Webinar 

The time and date for the webinar 

meeting are listed in the DATES section 

at the beginning of this document. 

Webinar registration information, 

participant instructions, and 

information about the capabilities 

available to webinar participants will be 

published on DOE’s website: https://

www.energy.gov/eere/buildings/publicmeetings-and-comment-deadlines. 

Participants are responsible for ensuring 

their systems are compatible with the 

webinar software. 

B. Procedure for Submitting Prepared 

General Statements for Distribution 

Any person who has an interest in the 

topics addressed in this document, or 

who is representative of a group or class 

of persons that has an interest in these 

issues, may request an opportunity to 

make an oral presentation at the 

webinar. Such persons may submit such 

request to 

ApplianceStandardsQuestions@

ee.doe.gov. Persons who wish to speak 

should include with their request a 

computer file in WordPerfect, Microsoft 

Word, PDF, or text (ASCII) file format 

that briefly describes the nature of their 

interest in this rulemaking and the 

topics they wish to discuss. Such 

persons should also provide a daytime 

telephone number where they can be 

reached. 

C. Conduct of the Webinar 

DOE will designate a DOE official to 

preside at the webinar/public meeting 

and may also use a professional 

facilitator to aid discussion. The 

meeting will not be a judicial or 

evidentiary-type public hearing, but 

DOE will conduct it in accordance with 

section 336 of EPCA (42 U.S.C. 6306). A 

court reporter will be present to record 

the proceedings and prepare a 

transcript. DOE reserves the right to 

schedule the order of presentations and 

to establish the procedures governing 

the conduct of the webinar. There shall 

not be discussion of proprietary 

information, costs or prices, market 

share, or other commercial matters 

regulated by U.S. anti-trust laws. After 

the webinar and until the end of the 

comment period, interested parties may 

submit further comments on the 

proceedings and any aspect of the 

rulemaking. 

The webinar will be conducted in an 

informal, conference style. DOE will 

present a general overview of the topics 

addressed in this document, allow time 

for prepared general statements by 

participants, and encourage all 

interested parties to share their views on 

issues affecting this document. Each 

participant will be allowed to make a 

general statement (within time limits 

determined by DOE), before the 

discussion of specific topics. DOE will 

permit, as time allows, other 

participants to comment briefly on any 

general statements. At the end of all 

prepared statements on a topic, DOE 

will permit participants to clarify their 

statements briefly. Participants should 

be prepared to answer questions by DOE 

and by other participants concerning 

these issues. DOE representatives may 

also ask questions of participants 

concerning other matters relevant to this 

rulemaking. The official conducting the 

webinar/public meeting will accept 

additional comments or questions from 

those attending, as time permits. The 

presiding official will announce any 

further procedural rules or modification 

of the above procedures that may be 

needed for the proper conduct of the 

webinar. 

A transcript of the webinar will be 

included in the docket, which can be 

viewed as described in the Docket 

section at the beginning of this 

document. In addition, any person may 

buy a copy of the transcript from the 

transcribing reporter. 

D. Submission of Comments 

DOE will accept comments, data, and 

information regarding this proposed 

rule before or after the public meeting, 

but no later than the date provided in 

the DATES section at the beginning of 

this document. Interested parties may 

submit comments, data, and other 

information using any of the methods 

described in the ADDRESSES section at 

the beginning of this document. 

Submitting comments via https:// 

www.regulations.gov. The https:// 

www.regulations.gov web page will 

require you to provide your name and 

contact information. Your contact 

information will be viewable to DOE 

Building Technologies staff only. Your 


jspears on DSK121TN23PROD with PROPOSALS1
Federal Register / Vol. 87, No. 125 / Thursday, June 30, 2022 / Proposed Rules 39015 

contact information will not be publicly 

viewable except for your first and last 

names, organization name (if any), and 

submitter representative name (if any). 

If your comment is not processed 

properly because of technical 

difficulties, DOE will use this 

information to contact you. If DOE 

cannot read your comment due to 

technical difficulties and cannot contact 

you for clarification, DOE may not be 

able to consider your comment. 

However, your contact information 

will be publicly viewable if you include 

it in the comment itself or in any 

documents attached to your comment. 

Any information that you do not want 

to be publicly viewable should not be 

included in your comment, nor in any 

document attached to your comment. 

Otherwise, persons viewing comments 

will see only first and last names, 

organization names, correspondence 

containing comments, and any 

documents submitted with the 

comments. 

Do not submit to https://

www.regulations.gov information for 

which disclosure is restricted by statute, 

such as trade secrets and commercial or 

financial information (hereinafter 

referred to as Confidential Business 

Information (‘‘CBI’’)). Comments 

submitted through https://

www.regulations.gov cannot be claimed 

as CBI. Comments received through the 

website will waive any CBI claims for 

the information submitted. For 

information on submitting CBI, see the 

Confidential Business Information 

section. 

DOE processes submissions made 

through https://www.regulations.gov 

before posting. Normally, comments 

will be posted within a few days of 

being submitted. However, if large 

volumes of comments are being 

processed simultaneously, your 

comment may not be viewable for up to 

several weeks. Please keep the comment 

tracking number that https://

www.regulations.gov provides after you 

have successfully uploaded your 

comment. 

Submitting comments via email, hand 

delivery/courier, or postal mail. 

Comments and documents submitted 

via email, hand delivery/courier, or 

postal mail also will be posted to 

https://www.regulations.gov. If you do 

not want your personal contact 

information to be publicly viewable, do 

not include it in your comment or any 

accompanying documents. Instead, 

provide your contact information in a 

cover letter. Include your first and last 

names, email address, telephone 

number, and optional mailing address. 

The cover letter will not be publicly 

viewable as long as it does not include 

any comments 

Include contact information each time 

you submit comments, data, documents, 

and other information to DOE. If you 

submit via postal mail or hand delivery/ 

courier, please provide all items on a 

CD, if feasible, in which case it is not 

necessary to submit printed copies. No 

telefacsimiles (‘‘faxes’’) will be 

accepted. 

Comments, data, and other 

information submitted to DOE 

electronically should be provided in 

PDF (preferred), Microsoft Word or 

Excel, WordPerfect, or text (ASCII) file 

format. Provide documents that are not 

secured, that are written in English, and 

that are free of any defects or viruses. 

Documents should not contain special 

characters or any form of encryption 

and, if possible, they should carry the 

electronic signature of the author. 

Campaign form letters. Please submit 

campaign form letters by the originating 

organization in batches of between 50 to 

500 form letters per PDF or as one form 

letter with a list of supporters’ names 

compiled into one or more PDFs. This 

reduces comment processing and 

posting time. 

Confidential Business Information. 

Pursuant to 10 CFR 1004.11, any person 

submitting information that he or she 

believes to be confidential and exempt 

by law from public disclosure should 

submit via email two well-marked 

copies: one copy of the document 

marked ‘‘confidential’’ including all the 

information believed to be confidential, 

and one copy of the document marked 

‘‘non-confidential’’ with the information 

believed to be confidential deleted. DOE 

will make its own determination about 

the confidential status of the 

information and treat it according to its 

determination. 

It is DOE’s policy that all comments 

may be included in the public docket, 

without change and as received, 

including any personal information 

provided in the comments (except 

information deemed to be exempt from 

public disclosure). 

V. Approval of the Office of the 

Secretary 

The Secretary of Energy has approved 

publication of this notification of the 

availability of the preliminary technical 

support document and request for 

comment. 

Signing Authority 

This document of the Department of 

Energy was signed on June 24, 2022, by 

Kelly J. Speakes-Backman, Principal 

Deputy Assistant Secretary for Energy 

Efficiency and Renewable Energy, 

pursuant to delegated authority from the 

Secretary of Energy. That document 

with the original signature and date is 

maintained by DOE. For administrative 

purposes only, and in compliance with 

requirements of the Office of the Federal 

Register, the undersigned DOE Federal 

Register Liaison Officer has been 

authorized to sign and submit the 

document in electronic format for 

publication, as an official document of 

the Department of Energy. This 

administrative process in no way alters 

the legal effect of this document upon 

publication in the Federal Register. 

Signed in Washington, DC, on June 24, 

2022. 

Treena V. Garrett, 

Federal Register Liaison Officer, U.S. 

Department of Energy. 

[FR Doc. 2022–13957 Filed 6–29–22; 8:45 am] 

BILLING CODE 6450–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0807; Project 

Identifier AD–2022–00214–R] 

RIN 2120–AA64 

Airworthiness Directives; Bell Textron 

Canada Limited Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to 

supersede Airworthiness Directive (AD) 

2021–26–08, which applies to certain 

Bell Textron Canada Limited Model 

206, 206A, 206A–1, 206B, 206B–1, 

206L, 206L–1, 206L–3, and 206L–4 

helicopters. AD 2021–26–08 requires 

removing certain nuts from service; 

installing newly designed nuts; 

applying a specific torque, and a torque 

stripe to each newly installed nut; after 

the installation of each newly designed 

nut, inspecting the torque; and 

depending on the inspection results, 

either applying a torque stripe, or 

performing further inspections and 

removing certain parts from service. AD 

2021–26–08 also prohibits installing any 

affected nut on any tail rotor drive shaft 

(TRDS) disc pack (Thomas) coupling. 

Since the FAA issued AD 2021–26–089, 

the FAA determined certain torque 

values and part numbers (P/Ns) need to 

be revised. This proposed AD would 

require removing certain nuts from 

service; installing newly designed nuts; 

applying torque and a torque stripe; and 


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