3464 Federal Register / Vol. 73, No. 13 / Friday, January 18, 2008 / Notices 

ENVIRONMENTAL PROTECTION 

AGENCY 

[ER–FRL–6695–1] 

Environmental Impacts Statements; 

Notice of Availability 

Responsible Agency: Office of Federal 

Activities, General Information (202) 

564–7167 or http://www.epa.gov/ 

compliance/nepa/. 

Weekly receipt of Environmental Impact 

Statements Filed 01/07/2008 through 

01/11/2008. Pursuant to 40 CFR 

1506.9. 

EIS No. 20080008, Draft EIS, NPS, NY, 

Governors Island National Monument, 

General Management Plan, 

Implementation, New York Harbor, 

NY, Comment Period Ends: 03/18/ 

2008, Contact: Christine Gobrial 215–

597–1572. 

EIS No. 20080009, Final EIS, AFS, WY, 

Lower Valley Energy (LVE) Natural 

Gas Pipeline Project, Construction 

and Operation of a Pressurized 

Natural Gas Pipeline, Special-UseAuthorization, Big Piney and Jackson 

Ranger Districts, Bridger-Teton 

National Forest, Sublette and Teton 

Counties, WY, Wait Period Ends: 02/ 

19/2008, Contact: Greg Clark 307–

276–3375. 

EIS No. 20080010, Draft EIS, FHW, 00, 

US–231/I–10 Connector Project HPP–

1602–(507), Proposal to Build Limited 

Access Facility from U.S. 231 North of 

Dothan to the Alabama/Florida State 

Line, Dale, Houston, Geneva Counties, 

AL, Comment Period Ends: 03/03/ 

2008, Contact: Mark D. Bartlett 334–

223–7370. 

EIS No. 20080011, Final EIS, FHW, AK, 

Knik Arm Crossing Project, To 

Provide Improved Access between the 

Municipality of Anchorage and 

Matanuska-Susitna Borough, AK, 

Wait Period Ends: 02/19/2008, 

Contact: Edrie Vinson 907–586–7464. 

EIS No. 20080012, Final EIS, NAS, 00, 

Programmatic—Constellation 

Program, Develop the Flight Systems 

and Earth-based Ground 

Infrastructure for Future Missions, 

International Space Station, The 

Moon, Mars, and Beyond, Brevard 

and Volusia Counties, FL; Hancock 

County, MS; Orlean Parish, LA; Harris 

County, TX; Madison County, AL; 

Cuyahoga and Erie Counties, OH; 

Hampton, VA; Santa Clara County, 

CA; Dona Ana and Otero Counties, 

NM; and Box Elder and Davis 

Counties, UT, Wait Period Ends: 02/ 

19/2008, Contact: Kathleen Callister 

202–358–1953. 

EIS No. 20080013, Draft EIS, AFS, NM, 

Santa Fe National Forest Project, 

Settlement Land Transfers: Pueblo de 

San lldefonso, Pueblo of Santa Clara 

and Los Alamos County, 

Implementation, Santa Fe National 

Forest, Los Alamos, Rio Arriba and 

Santa Fe Counties, NM, Comment 

Period Ends: 03/03/2008, Contact: 

Sandy Hurlocked 505–753–7331. 

EIS No. 20080014, Draft EIS, NPS, WA, 

San Juan Island National Historical 

Park, General Management Plan, 

Implementation, WA, Comment 

Period Ends: 03/17/2008, Contact: 

Cheryl Teaque 206–220–4112. 

EIS No. 20080015, Draft EIS, BLM, WY, 

Westside Land Conveyance Project, 

Congressionally-Mandated Transfer of 

16,500 Acres of Public Land to the 

Westside Irrigation District, Big Horn 

and Washakie Counties, WY, 

Comment Period Ends: 03/03/2008, 

Contact: Don Ogaard 307–347–5160. 

This document is available on the 

Internet at: http://www.blm.gov/wy/st/ 

en/info/NEPA/wfodocs/westside.html. 

EIS No. 20080016, Draft EIS, FHW, ID, 

Three Cities River Crossing Project, 

New Roadway Crossing of the Boise 

River at the Juncture of the Cities of 

Boise, Eagle and Garden, Ada County 

Highway District (ACHD), Ada 

County, ID, Comment Period Ends: 

03/03/2008, Contact: Ross Blanchard 

208–334–9180. 

EIS No. 20080017, Final EIS, COE, CA, 

San Clemente Dam Seismic Safety 

Project, Increase Dam Safety to Meet 

Current Design Standards, Monterey 

County, CA, Wait Period Ends: 02/19/ 

2008, Contact: Robert Smith 415–503–

6792. 

EIS No. 20080018, Draft EIS, FHW, CA, 

Phase I—CA 11 Corridor Location and 

Route Adoption and Location 

Identification of the Otay Mesa East 

Port of Entry (POE) on Otay Mesa, 

Presidential Permit for the POE and 

Acquisition of Right-of-Way Permit, 

San Diego County, CA, Comment 

Period Ends: 03/03/2008, Contact: 

Cesar Perez 916–498–5065. 

EIS No. 20080019, Draft EIS, MMS, 00, 

Cape Wind Energy Project, 

Construction, Operation and 

Maintenance, and Decommissioning 

of a Electric Generation Facility, 

Barnstable, Nantucket and Duke 

County, MA and Washington County, 

RI, Comment Period Ends: 03/20/ 

2008, Contact: Dr. Rodney E. Cluck 

703–787–1087. 

EIS No. 20080020, Final EIS, FRC, NY, 

Broadwater Liquefied Natural Gas 

(LNG) Project, Construction and 

Operation a Natural Gas Pipeline 

Facilities, (Docket Nos. CP06–54, et 

al.), Long Island Sound, NY, Wait 

Period Ends: 02/19/2008, Contact: 

Andy Black 1–866–208–3372. 

Amended Notices 

EIS No. 20070508, Draft EIS, AFS, 00, 

Wild and Scenic River Suitability 

Study for National Forest System 

Lands on the Ashley, Dixie, Fishlake, 

Manti-La Sal, Uinta and WasatchCache National Forests in UT and 

Portion of National Forests extend 

into Colorado and Wyoming, several 

counties, UT, Montrose County, CO 

and Uinta County, WY, Wait Period 

Ends: 02/15/2008, Contact: Catherine 

Kahlow 435–783–4338. Revision of 

FR Notice Published 12/07/2007: 

Extending Comment Period from 01/ 

22/2008 to 02/15/2008. 

Dated: January 15, 2008. 

Robert W. Hargrove, 

Director, NEPA Compliance Division, Office 

of Federal Activities. 

[FR Doc. E8–881 Filed 1–17–08; 8:45 am] 

BILLING CODE 6560–50–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

[CAXXX–NOA; FRL–8517–9] 

Official Release of EMFAC2007 Motor 

Vehicle Emission Factor Model for Use 

in the State of California 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Notice of Availability. 

SUMMARY: EPA is approving and 

announcing the availability of the latest 

version of the California EMFAC model 

for use in state implementation plan 

(SIP) development in California. 

EMFAC2007 is the latest update to the 

EMFAC model for use by California 

state and local governments to meet 

Clean Air Act (CAA) requirements. The 

new model, which is based on new and 

improved data, calculates air pollution 

emission factors for passenger cars, 

trucks, motorcycles, motor homes and 

buses. Today’s notice also sets the date 

after which EMFAC2007 is required to 

be used statewide in all new regional 

emissions analyses and carbon 

monoxide (CO) hot-spot analyses for 

transportation conformity 

determinations in California. EPA also 

intends to approve EMFAC2007 in the 

future for particulate matter (PM10 and 

PM2.5) hot-spot analyses in California, 

once EPA issues quantitative hot-spot 

modeling guidance for such analyses. 

Since the EMFAC model is used only in 

California, EPA’s approval of the model 

does not affect MOBILE model users in 

other states. 

DATES: This determination is effective 

January 18, 2008. EMFAC2007 must be 

used for all new regional emissions 


rwilkins on PROD1PC63 with NOTICES
Federal Register / Vol. 73, No. 13 / Friday, January 18, 2008 / Notices 3465 

analyses and CO hot-spot analyses that 

are started on or after April 18, 2008. 

FOR FURTHER INFORMATION CONTACT: 

Karina O’Connor, 

oconnor.karina@epa.gov, (775) 833–

1276, Air Planning Office (AIR–2), Air 

Division, U.S. EPA, Region 9, 75 

Hawthorne Street, San Francisco, 

California, 94105–3901. For questions 

regarding the future development of 

quantitative PM10 and PM2.5 hot-spot 

modeling guidance, contact Meg 

Patulski, patulski.meg@epa.gov, (734) 

214–4842, Transportation and Regional 

Programs Division, U.S. EPA’s Office of 

Transportation and Air Quality, 2000 

Traverwood Road, Ann Arbor, MI 

48105. 

SUPPLEMENTARY INFORMATION: Copies of 

the official version of the EMFAC2007 

model are available on the California 

Air Resources Board (CARB) Web site: 

http://www.arb.ca.gov/msei/onroad/ 

latest_version.htm (model, technical 

support documents, etc). 

I. Background 

A. What Is the EMFAC Model? 

The EMFAC model (short for 

EMission FACtor) is a computer model 

that can estimate emission rates for onroad mobile sources (‘‘motor vehicles’’) 

for calendar years from 1970 to 2040 

operating in California. Pollutant 

emissions for hydrocarbons (HC), CO, 

nitrogen oxides (NOX), PM10, PM2.5, 

lead, and sulfur oxides are output from 

the model. Emissions are calculated for 

thirteen different vehicles classes 

comprised of passenger cars, various 

types of trucks and buses, motorcycles, 

and motor homes. The EMFAC2007 

model is operated with a user-friendly 

graphical user interface (GUI) which 

facilitates data input and allows the 

development of alternative emissions 

scenarios through a What If Scenarios 

(WIS) generator. The WIS interface can 

be used to incorporate updated vehicle 

data, adjust ambient conditions or make 

changes to potential emission control 

programs in a specific area. 

EMFAC is used to calculate current 

and future inventories of motor vehicle 

emissions at the state, air district, air 

basin, or county level. EMFAC contains 

default vehicle activity data, and the 

option of modifying that data, so it can 

be used to estimate a motor vehicle 

emission inventory in tons/day for a 

specific year, month, or season, and as 

a function of ambient temperature, 

relative humidity, vehicle population, 

mileage accrual, miles of travel and 

speeds. Thus the model can be used to 

make decisions about air pollution 

policies and programs at the local or 

state level. Inventories based on EMFAC 

are also used to meet the federal CAA’s 

SIP and transportation conformity 

requirements. Transportation 

conformity is required under CAA 

section 176(c) to ensure that federally 

supported transportation plans, 

transportation improvement programs 

(TIPs), and highway and transit projects 

are consistent with (‘‘conform to’’) the 

purpose of the SIP. 

B. What Versions of EMFAC Are 

Currently in Use in California? 

Most SIPs in California were 

developed using EMFAC2002 (released 

by CARB in October 2002) or 

EMFAC2000 (released by CARB in May 

2000). EPA approved use of 

EMFAC2000 in January 2002 only for 

the San Francisco Bay Area (67 FR 

1464). EPA approved EMFAC2002 in 

April 2003 (68 FR 15720) for all areas 

in California. 

EMFAC2002 was considered a major 

update to previous versions of EMFAC 

and most SIPs in California were 

updated with EMFAC2002 in the 2003–

2006 timeframe. EMFAC2002 included 

significant changes to its model 

interface, new data and methodologies 

regarding calculation of motor vehicle 

emissions, revision to implementation 

data for control measures, and 

corrections to technical errors 

mentioned in our prior approval of 

EMFAC2000. Areas with SIP motor 

vehicle emissions budgets developed 

using earlier versions of EMFAC were 

required to use EMFAC2002 for regional 

conformity analyses at the end of the 

grace period provided by 40 CFR 

93.111(b). 

C. Why Is EPA Announcing Its Approval 

of the EMFAC Model? 

CAA section 172(c)(3) and 40 CFR 

51.112(a)(1) require that SIP inventories 

be based on the most current, accurate, 

and applicable models that are available 

at the time the SIP is developed. CAA 

section 176(c)(1) requires that the latest 

emissions estimates be used in 

conformity analyses. EPA approves 

models that fulfill these requirements. 

Under 40 CFR 93.111(a), EPA must 

approve new versions of EMFAC for SIP 

purposes before they can be used in 

transportation conformity analyses. In 

an April 18, 2007 letter, CARB 

requested that EPA approve 

EMFAC2007 for use in developing SIPs 

and in determining conformity in 

California. EMFAC2007 is a significant 

change from previous EMFAC models 

and is capable of calculating motor 

vehicle emissions for all California 

areas. EMFAC2007 is being approved as 

the latest emissions model for statewide 

use in SIP development. Since the 

EMFAC model is only used in 

California, EPA’s statewide approval of 

the model does not affect MOBILE 

emissions factor model users in other 

states. 

D. Why Have Transportation Agencies 

Stopped Using EMFAC2002 for Regional 

Conformity Emissions Analyses? 

On February 1, 2007, the Federal 

Highway Administration (FHWA) sent a 

letter to all of the Metropolitan Planning 

Organizations in California and Caltrans 

Districts indicating that, after August 1, 

2007, they would not be able to start any 

new transportation conformity 

determinations that require a new 

regional emissions analysis, unless the 

analysis incorporates more recent 

vehicle data consistent with the latest 

planning assumptions requirements in 

the conformity rule (40 CFR 93.110). 

The letter indicated that updated 

vehicle data was available in 

EMFAC2007, which was released to the 

public in November 2006. The letter 

indicated that FHWA, the Federal 

Transit Administration (FTA), and EPA 

were providing agencies with a 6-month 

transition period, beginning on February 

1, 2007 before the new vehicle fleet data 

was required in conformity 

determinations. Consistent with the 

EPA/USDOT January 18, 2001, guidance 

on latest planning assumptions and 

EPA’s July 1, 2004 final rule (69 FR 

40052–40056), new vehicle registration 

data must be used when it is available 

at the start of new conformity analyses. 

Since newer vehicle data was available 

but was not included in the older 

version of EMFAC, EMFAC2002 has not 

been used in any new regional 

emissions analyses that were started 

since August 1, 2007. 

II. EPA Action 

A. What Version of EMFAC Is EPA 

Approving? 

In this notice, EPA is approving and 

announcing that EMFAC2007 is 

available to use in statewide California 

SIP development and for regional 

emissions analyses and carbon 

monoxide (CO) hot-spot analyses for 

transportation conformity analyses. 

EMFAC2007 was developed by CARB 

and transmitted for approval to EPA on 

April 18, 2007. 

On January 28, 2003, CARB also 

transmitted a methodology 

(‘‘Recommended Methods for Use of 

EMFAC2002 to Develop Motor Vehicle 

Emission Budgets and Assess 

Conformity’’) to adjust vehicle activity 

data used by EMFAC2007 when 

updated data is available. EPA 

previously approved this CARB 


rwilkins on PROD1PC63 with NOTICES
3466 Federal Register / Vol. 73, No. 13 / Friday, January 18, 2008 / Notices 

1For further information, see EPA’s August 2, 

2007 memorandum entitled, ‘‘Policy Guidance on 

the Use of the November 1, 2006, Update to AP–

42 for Re-entrained Road Dust for SIP Development 

and Transportation Conformity.’’

2 ‘‘Transportation Conformity Guidance for 

Qualitative Hot-Spot Analyses in PM2.5 and PM10

Nonattainment and Maintenance Areas’’ jointly 

published by EPA and FHWA in March 2006. 

methodology on April 1, 2003 (68 FR 

15720, at 15721) for use with 

EMFAC2002, since the transportation 

conformity rule (40 CFR 93.110) 

requires areas to use the latest 

information for estimating vehicle 

activity. With EMFAC2007, CARB has 

not made any changes to the 

methodology to adjust vehicle activity 

data, and therefore the existing 

approved methodology will continue to 

be approved with no change. However, 

the methodology has been included in 

the updates to Chapter 8 of the EMFAC 

user’s guide. Therefore, CARB’s 

methodology should continue to be 

used to update vehicle activity data in 

EMFAC2007, as described in the 

EMFAC user’s guide. 

B. What Analyses Can EMFAC2007 Be 

Used For? 

EPA is approving the model to 

estimate regional emissions of HC, CO, 

NOX, PM10, PM2.5, lead, and sulfur 

oxides. However, EMFAC2007 will only 

be used in transportation conformity for 

pollutants and precursors that affect 

transportation emissions, e.g., HC, NOX, 

CO, PM10 and PM2.5. 

EPA is also approving EMFAC2007 to 

estimate CO emissions for hot-spot 

analyses involving individual 

transportation projects. A hot-spot 

analysis is defined in 40 CFR 93.101 as 

an estimation of likely future localized 

pollutant concentrations resulting from 

a new transportation project and a 

comparison of those concentrations to 

the relevant air quality standard. This 

analysis is conducted on a smaller scale, 

e.g., for a congested roadway 

intersection. 

EPA also notes that today’s approval 

action does not impact what 

methodology is required for calculating 

re-entrained road dust or ammonia 

emissions for regional PM10 and PM2.5

SIP and transportation conformity 

analyses. EMFAC2007’s PM10 and PM2.5

estimates do not include such 

emissions. When applicable, PM10 and 

PM2.5 nonattainment and maintenance 

areas are required to use EPA’s AP–42 

road dust method for calculating road 

dust emissions, unless a local method is 

approved by EPA.1 EMFAC2007 does 

not estimate ammonia emissions; air 

quality and transportation agencies 

should contact the regional office if 

ammonia emission estimates are 

needed. 

C. Is EMFAC2007 Being Approved for 

PM10 and PM2.5 Hot-spot Analyses At 

This Time? 

On March 10, 2006, EPA published a 

final rule that established the 

transportation conformity procedures 

for analyzing PM10 and PM2.5 hot-spot 

impacts of new projects involving 

significant levels of on-road diesel 

traffic (71 FR 12468). Quantitative PM10

and PM2.5 hot-spot analyses have not yet 

been required for the projects of local air 

quality concern described in 40 CFR 

93.123(b)(1) due to the need to develop 

EPA modeling guidance and appropriate 

methods (71 FR at 12498–12502). 

Section 93.123(b)(4) of the conformity 

rule states that the requirements for 

quantitative PM10 and PM2.5 hot-spot 

analyses will not take effect until EPA 

releases modeling guidance and 

announces in the Federal Register that 

these requirements are in effect. At 

present, project sponsors are currently 

following EPA and FHWA’s qualitative 

hot-spot modeling guidance for 

conformity determinations involving 

projects of local air quality concern.2

EMFAC2007 is capable of assessing 

project-level emissions for PM10 and 

PM2.5 hot-spot analyses, but as 

described in the March 2006 final rule 

and 40 CFR 93.123(b)(4), EPA believes 

that quantitative PM hot-spot modeling 

guidance is also necessary before 

quantitative PM hot-spot analyses can 

be required. Therefore, since such 

guidance is currently not available, EPA 

is not approving EMFAC2007 for PM10

and PM2.5 hot-spot conformity analyses 

at this time. 

Over the next year, EPA intends to 

develop quantitative PM10 and PM2.5

hot-spot modeling guidance, which will 

contain information on how to use 

EMFAC2007 and how to apply the 

appropriate dispersion models for such 

analyses in California. EPA will 

announce the availability of the 

guidance and approval of EMFAC2007 

for quantitative PM hot-spot analyses 

when the guidance is completed for 

California. EPA will consult with 

FHWA, FTA, CARB, the California state 

department of transportation (Caltrans), 

other stakeholders, and the public in the 

development of this guidance, as 

described in the March 2006 final rule. 

Please see the FOR FURTHER INFORMATION

CONTACT section if you have questions 

regarding the development of 

conformity guidance for quantitative 

PM10 and PM2.5 hot-spot analyses in 

California. 

D. Why Does EPA Consider EMFAC2007 

as a Major Update to EMFAC? 

EMFAC2007 includes new data and 

methodologies regarding calculation of 

motor vehicle emissions and revisions 

to implementation data for control 

measures. EMFAC2007 includes 

updated data supporting new emission 

factors and speed correction factors for 

estimating emissions from heavy-heavy 

duty diesel trucks. The model includes 

modifications to the algorithms for 

inspection and maintenance as well as 

corrections for heavy-duty truck gas cap 

benefits from the inspection and 

maintenance program. Impacts of 

ethanol permeation and updates to fuel 

correction factors are included as well 

as revisions to particulate brake wear 

emissions. EMFAC2007 incorporates 

new temperature and humidity profiles. 

In addition to these changes, which 

impact emission factors for each area in 

California, EMFAC incorporates new 

mileage accrual rates and speed 

distributions, a redistribution of heavyduty diesel truck vehicle miles traveled 

(VMT) and updated VMT for all vehicle 

classes. CARB’s web site describes these 

and other model changes at: http:// 

www.arb.ca.gov/msei/ 

workshops.htm#work20061115. 

E. How Were Stakeholders and the 

Public Involved in the EMFAC 

Development Process? 

Since 2005, CARB has held a series of 

public workshops to discuss proposed 

model updates and receive comments 

on interim versions of the new model. 

Three workshops were held to solicit 

input from stakeholders and the public 

in March of 2005. Then, in workshops 

held on September 11 and November 15 

and 16, 2006, CARB described the latest 

EMFAC changes under consideration 

and sought public input. Those changes 

are reflected in the final EMFAC2007 

model submitted to EPA in April 2007. 

One additional public information 

briefing was held on December 15, 2006, 

to share the emissions estimates 

resulting from use of the final model 

with updated travel activity, as well as 

plans for transmittal of EMFAC2007 to 

U.S. EPA. CARB has also discussed both 

the model and the impact of the changes 

to emission totals for the state at the 

workshops. 

CARB also released a series of 

technical memos that describe each 

update to the model, and public 

presentations that summarize the 

changes from earlier versions of the 

model. The technical memos are 

available on CARB’s Web site at: http:// 

www.arb.ca.gov/msei/supportdocs.htm. 

Each memo describes the model update, 


rwilkins on PROD1PC63 with NOTICES
Federal Register / Vol. 73, No. 13 / Friday, January 18, 2008 / Notices 3467 

the reason for the change, how the 

change was incorporated into the 

EMFAC model, and the resulting 

emissions impact. All presentations 

from the public workshops are available 

on the CARB Web site at: http:// 

www.arb.ca.gov/msei/ 

workshops.htm#work200612. These 

presentations summarize the major 

changes to the EMFAC model and 

contain tables showing the impacts of 

the changes both statewide and by 

county for HC, CO, NOX, PM10, and 

PM2.5. 

F. Will a Transportation Conformity 

Grace Period Be Set by This Approval? 

Yes. The transportation conformity 

rule (40 CFR part 93.111) requires that 

conformity analyses be based on the 

latest motor vehicle emissions model 

approved by EPA for SIP purposes for 

a state or area. Section 176(c)(1) of the 

CAA states that ‘‘* * * [t]he 

determination of conformity shall be 

based on the most recent estimates of 

emissions, and such estimates shall be 

determined from the most recent 

population, employment, travel, and 

congestion estimates. * * *’’ When EPA 

approves a new emissions model such 

as EMFAC2007, a grace period is 

established before the model is required 

for conformity analyses. However, areas 

have the option of using the new model 

prior to the end of the grace period. The 

conformity rule provides for a grace 

period for new emissions models of 

between 3 to 24 months. In consultation 

with FHWA and FTA, EPA considers 

many factors in establishing the length 

of the grace period, including the degree 

of change in emissions models and the 

effects of the new model on the 

transportation planning process (40 CFR 

93.111). 

Upon consideration of all of these 

factors, EPA is establishing a 3-month 

grace period before EMFAC2007 is 

required for the following conformity 

analyses: 

• All new HC, NOX, PM10, PM2.5 and 

CO regional emissions analyses (e.g., 

supporting transportation plan and TIP 

conformity determinations); and 

• All new CO hot-spot analyses 

supporting project-level conformity 

determinations. 

The grace period begins today and 

ends on April 18, 2008. As discussed 

earlier in the notice, the last version of 

EMFAC (EMFAC2002) is no longer used 

in California for new regional emissions 

analyses for transportation plan and TIP 

conformity determinations. Therefore it 

is appropriate to set a short grace period 

since all areas in California will need to 

use EMFAC2007 to begin any new 

regional conformity analyses. A longer 

grace period would provide no practical 

benefit for transportation plan and TIP 

conformity determinations, since older 

EMFAC models cannot be used in new 

regional analyses due to the latest 

planning assumptions requirements in 

the conformity rule (40 CFR 93.110). 

When the grace period ends on April 

18, 2008, EMFAC2007 will become the 

only approved motor vehicle emissions 

model for all new regional and CO hotspot transportation conformity analyses 

across California. In general, this means 

that all new HC, NOX, PM10, PM2.5, and 

CO regional conformity analyses and CO 

hot-spot analyses started after the end of 

the 3-month grace period must be based 

on EMFAC2007, even if the SIP is based 

on an earlier version of the EMFAC 

model. 

G. Can Areas Use Any Other Models 

During the Grace Period? 

Yes, in limited cases. CO hot-spot 

analyses for project-level conformity 

determinations can be based on 

EMFAC2002 if the analysis was begun 

before the end of the grace period, 

started before August 1, 2007 and if the 

final environmental document for the 

project is issued no more than three 

years after the issuance of the draft 

environmental document (see 40 CFR 

93.111(c)). The interagency consultation 

process should be used if it is unclear 

whether an EMFAC2002 based analysis 

is covered by the circumstances 

described above. 

H. Future Updates to EMFAC 

On January 31, 2006, CARB submitted 

a letter to EPA and to the California 

Division of the FHWA indicating the 

State’s intention to update future 

revisions to EMFAC. These EMFAC 

updates would reflect, among other new 

information, updated vehicle fleet data 

every three years. In California, 

Metropolitan Planning Organizations 

and Air Districts have not been able to 

update vehicle fleet data embedded into 

EMFAC. The EPA/USDOT January 18, 

2001, guidance on latest planning 

assumptions and EPA’s July 2004 final 

rule, indicate that new vehicle 

registration data must be used when it 

is available prior to the start of new 

conformity analyses and that states 

should update the data at least every 

five years. The State reaffirmed their 

commitment to keeping the latest 

planning assumptions included in 

EMFAC updated on a three year cycle 

in the April 18, 2007 EMFAC submittal 

letter. The next update to the planning 

assumptions in EMFAC is expected in 

2010, which would most likely also 

include updates to the emissions factors 

of the model as well. 

III. Summary of EPA Actions 

EPA is approving EMFAC2007 as 

submitted by CARB on April 18, 2007 

with the following limitations and 

conditions: 

(1) The approval is limited to 

California. 

(2) The approval is Statewide and 

applies to estimation of emissions of 

hydrocarbon, carbon monoxide, 

nitrogen oxides, particulate matter 

(PM10 and PM2.5), lead, and sulfur 

oxides. However, EMFAC2007 will only 

be used in transportation conformity 

analyses for pollutants and precursors 

that affect regional on-road mobile 

emissions and are applicable in a given 

nonattainment or maintenance area. 

EPA is also approving EMFAC2007 to 

estimate hot-spot emissions for carbon 

monoxide conformity analyses. 

(3) A 3-month statewide 

transportation conformity grace period 

will be established beginning January 

18, 2008 and ending April 18, 2008 for 

the transportation conformity uses 

described in (2) above. 

Dated: January 10, 2008. 

Jane Diamond, 

Acting Regional Administrator, Region IX. 

[FR Doc. E8–876 Filed 1–17–08; 8:45 am] 

BILLING CODE 6560–50–P 

EQUAL EMPLOYMENT OPPORTUNITY 

COMMISSION 

Sunshine Act Meeting; Cancellation 

AGENCY HOLDING THE MEETING: Equal 

Employment Opportunity Commission. 

‘‘FEDERAL REGISTER’’ CITATION OF

PREVIOUS ANNOUNCEMENT: 73 FR 1343, 

Tuesday, January 8, 2008. 

PREVIOUSLY ANNOUNCED TIME AND DATE OF

MEETING: Tuesday, January 15, 2008, 3 

p.m. (Eastern Time). 

CHANGE IN THE MEETING: The meeting has 

been cancelled. 

CONTACT PERSON FOR MORE INFORMATION: 

Stephen Llewellyn, Executive Officer on 

(202) 663–4070. 

Dated: January 15, 2008. 

Stephen Llewellyn, 

Executive Officer, Executive Secretariat. 

[FR Doc. 08–187 Filed 1–17–08; 8:45 am] 

BILLING CODE 6570–01–M 

FEDERAL ELECTION COMMISSION 

Sunshine Act Notices 

DATE AND TIME: Wednesday, January 23, 

2008 at 10 a.m. 

PLACE: 999 E. Street, NW., Washington, 

DC. 


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