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Federal Register / Vol. 62, No. 28 / Tuesday, February 11, 1997 / Rules and Regulations6129List of Subjects in 40 CFR Part 52Environmental protection, Airpollution control, Hydrocarbons, Ozone,Volatile organic compounds.Dated: January 23, 1997.Steve Rothblatt,Acting Regional Administrator.Part 52, chapter I, title 40 of the Codeof Federal Regulations is amended asfollows:PART 52—[AMENDED]1. The authority citation for part 52continues to read as follows:Authority: 42 U.S.C. 7401–7671q.Subpart O—Illinois2. Section 52.726 is amended byadding paragraph (o) to read as follows:§ 52.726 Control strategy: Ozone.* * * * *(o) Negative declaration— Aerospacemanufacturing and rework industry. OnOctober 11, 1996, the State of Illinoiscertified to the satisfaction of the UnitedStates Environmental Protection Agencythat no major sources categorized as partof the Aerospace Manufacturing andRework Industry are located in theChicago, Illinois ozone nonattainmentarea which is comprised of Cook,DuPage, Kane, Lake, McHenry, WillCounties and Aux Sable and Goose LakeTownships in Grundy County andOswego Township in Kendall County orthe Metro-East, Illinois ozonenonattainment area which is comprisedof Madison, Monroe, and St. ClairCounties.[FR Doc. 97–3252 Filed 2–10–97; 8:45 am]BILLING CODE 6560–50–P40 CFR Part 52[AK14–7102a; FRL–5686–2]Clean Air Act Approval andPromulgation of Carbon MonoxideImplementation Plan for the State ofAlaska: Anchorage and FairbanksEmission InventoryAGENCY: Environmental ProtectionAgency (EPA).ACTION: Direct final rule.SUMMARY: EPA is approving the 1990base year carbon monoxide (CO)emission inventory portion of theAnchorage and Fairbanks, Alaska COState Implementation Plan (SIP)submitted on December 29, 1993, by theState of Alaska Department ofEnvironmental Conservation (ADEC) forthe purpose of bringing about theattainment of the national ambient airquality standard (NAAQS) for CO. Also,ADEC submitted the required PeriodicUpdate to its 1990 base year COemission inventory on September 27,1996.DATES: This action is effective on April14, 1997 unless adverse or criticalcomments are received by March 13,1997. If the effective date is delayed,timely notice will be published in theFederal Register.ADDRESSES: Written comments shouldbe addressed to: Montel Livingston, SIPManager, Office of Air Quality (OAQ–107), EPA, 1200 Sixth Avenue, Seattle,Washington 98101.Copies of material submitted to EPAmay be examined during normalbusiness hours at the followinglocations: EPA, Region 10, Office of AirQuality, 1200 Sixth Avenue (OAQ–107),Seattle, Washington 98101, and AlaskaDepartment of EnvironmentalConservation, 410 Wiloughby Ave.,Room 105, Juneau, Alaska.FOR FURTHER INFORMATION CONTACT: JohnPavitt, EPA Region 10, AlaskaOperations Office (AOO/A), 222 W. 7thAvenue, Box #19, Anchorage, AK99513–7588, (907) 271–5083.SUPPLEMENTARY INFORMATION:I. BackgroundIn a letter dated March 1, 1991 to theEPA Region 10 Administrator, theGovernor of Alaska recommended theAnchorage and Fairbanks areas bedesignated as nonattainment for CO asrequired by section 107(d)(1)(A) of the1990 Clean Air Act Amendments(CAAA or the Act) (Pub. L. 101–549,104 Stat. 2399, codified at 42 U.S.C.7401–7671q). The areas, which includelands within the Municipality ofAnchorage and the Fairbanks North StarBorough, were designatednonattainment and classified as‘‘moderate’’ under the provisionsoutlined in sections 186 and 187 of theCAA. (See 56 FR 56694, November 6,1991, codified at 40 CFR part 81,§ 81.302.)Because the Anchorage area had adesign value of 13.1 ppm (based on1989 data), it was classified as‘‘moderate > 12.7 ppm’’ (moderate plus).Because the Fairbanks area had a designvalue of 10.4 (based on 1989 data), itwas classified as ‘‘moderate < 12.7ppm’’ (moderate).Under the Clean Air Act as amended,States have the responsibility toinventory emissions contributing toNAAQS nonattainment, to track theseemissions over time, and to ensure thatcontrol strategies are being implementedthat reduce emissions and move areastowards attainment. Under section187(a)(1), the CAAA requires moderateCO nonattainment areas to submit abase year CO inventory that representsactual emissions in the CO season byNovember 15, 1992. Stationary point,stationary area, on-road mobile, andnon-road mobile sources of CO are to beincluded in the inventory. Thisinventory is for calendar year 1990 andis denoted as the base year inventory.The inventory is to address actual COemissions for the area during the peakCO season. The peak CO season shouldreflect the months when peak CO airquality concentrations occur. ModerateCO nonattainment areas are required tosubmit a periodic inventory thatrepresents actual emissions no laterthan September 30, 1995, and everythree years thereafter until the area isredesignated to attainment (section187(a)(5)). ADEC submitted its required1993 Periodic Update. Areas classifiedas moderate >12.7 ppm are required tosubmit an attainment demonstrationplan by November 15, 1992 thatdemonstrates attainment by December31, 1995 (187(a)(7)). To make theattainment demonstration, base year andprojected modeling inventories areneeded. The base year inventory is theprimary inventory from which theperiodic and modeling inventories arederived. Further information on theseinventories and their purpose can befound in the document ‘‘EmissionInventory Requirements for CarbonMonoxide State Implementation Plans,’’EPA, Office of Air Quality Planning andStandards, Research Triangle Park,North Carolina, March 1991.II. Today’s ActionThe EPA is approving the carbonmonoxide (CO) base year 1990 emissioninventory submitted to EPA onDecember 29, 1993, based on the LevelI, II, and III review findings.III. Review of State SubmittalA. The Level I and II review processis used to determine that allcomponents of the base year inventoryare present. The review also evaluatesthe level of supporting documentationprovided by the State and assesseswhether the emissions were developedaccording to current EPA guidance.Alaska’s inventory satisfies both Level Iand Level II requirements. The Level IIIreview process is outlined here andconsists of 9 points that the inventorymust include. For a base year emissioninventory to be acceptable it must passall of the following acceptance criteria:1. An approved Inventory PreparationPlan (IPP) must be provided and theQuality Assurance (QA) program