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(,1 1/,1( Citation: 37 Fed. Reg. 10842 1972

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### RULES AND REGULATIONS 

# Title 40-PROTECTIONOF ENVIRONMENT Chapter I-Environmental Protection Agency SUBCHAPTER C-AIR PROGRAMS 

### PART 52-APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS On April 30, 1971 (36 P.R. 8186), pur

### suant to section 109 of the Clean Air Act, as amended, theAdministratorpro- mulgated national ambient air quality standards for sulfur oxides, particulate matter, carbonmonoxide,photochemical oxidants, hydrocarbons, and nitrogen dioxide. Within 9 months thereafter, each State was required by section 110 of the Act to adopt and submit to the Adminitrator aplan which provides for the implementation, maintenance, and enforcement of national ambient air qualitystandards within each airquality control regioninthe State.Anadditional period ofno longer than 18 months may be allowed for adoption and submittal ofthat portion of a plan relating toimplementation of secondary ambient air quality standards. Stateplans mustpro- vide for attainment ofnational primary ambient air quality standards within 3 years after the date of the Administrator'sapproval ofsuch plans,except that a 2-year extension ofthis deadline may be granted by the Administrator. State plansmustprovide forattainment ofnational secondary ambient air quality standards within a reasonable time. Within 4months fromthedate onwhich State plans were required to be submitted, the Administrator must approve or disapprove such plans or portions thereof.

On August 14, 19.71 (36 P.R. 15486), the Administrator promulgated regula- tions (40 CFR Part 51) (formerly 42 CPRPart420, buttransferred toChapter I of Title 40 by publication in the FEDERAL REGISTER, page 22369 et seq., No

### vember 25, 1971) setting forth requirements for preparation, adoption, and submittal ofStateimplementation plans. These regulations were amended October 23, 1971 (36 P.R.20513), and December 30, 1971 (36 P.R. 25233), to make certain additions and corrections. The Administrator'sregulations (40 CPRPart 51) provided generally that State plans must setforth a control strategy for attainment and maintenance of the national standards; legally enforceable regulations and compliance schedules for implementation of the control strategy; a contingency plan for preventing the occurrence of air pollution levels which would cause significant harm to the health of persons; source surveillance procedures; procedures to assure that construction or modification of stationarysourceswillnotinterferewithattainment or maintenance ofthenational standards; provisions forairquality surveillance; a description of the resources needed to carry out the State plan; and provisions for intergovernmental co- operation.Some ofther~qulrements vary by air quality control region in accord- ance with a classification scheme set forth in 40 CPR 51.9. Each State plan -must also show that the State has the legal authority necessary to carry out the plan, as specified by 40 CPR 51.11. States were required to conduct one or more public hearings prior to adoption oftheir implementation plans.

All 50 States, plus the District of Columbia, Puerto Rico, Virgin Islands, Guam, and American Samoa have submitted implementation plans. The Administrator's approvals and disapprovals are set forth below. A more detailed description of disapproved portions, together with an explanation ofthe basis of disapproval, will be provided to the States; copies of these Evaluation Reports will be available for public inspection at the Environmental 'Protection Agency, 401 M Street SW., Washington, D.C., and in the Agency's Regional Offices.

Where the Administrator disapproves a State planorportion thereof,or where a State fails to submit an implementationplan or portion thereof, theAdministrator is required, under section 110(c) of the Act, to propose and subsequently promulgate regulations setting forth a substitute implementation plan or portion thereof. Where regulatory portions of a State plan, including control strategies and related rules and regulations, are disapproved or were not submitted, regulations setting forth substitute portions will be proposed .and promulgated. When disapproved portions are of anonregulatory nature, e.g., air quality surveillance, resources, intergovernmental cooperation, and therefore are not susceptible tocorrection through promulgation of regulations by the Administrator, detailed comments will be included in the evaluation report; in such cases, the Environmental Protection Agency will work with the States to correct the deficiencies.

To the extent possible, the Administrator's evaluation ofState plans reflects the latest information submitted by the States. In the interest of giving States every opportunity to bring their implementation plans into full compliance with the Act and 40 CER Part 51, the Environmental Protection Agency has notified States that modifications submitted after the statutory'deadline for submittal.of State plans would be ac- cepted and considered: Provided, That such modifications were made and submitted in accordance with the requirements of 40 CPR Part 51. Accordingly, many States have been, and still are, making and submitting modifications of their implementation plans. Where such modifications affect the Administrator's approval or disapproval of a State plan or portion thereof, but are not reflected herein, appropriate changes to this part will be published as soon as the Administrator's evaluation of such modifications is completed.

The Act directs the Administrator to require a State to revise its implementation plan whenever he finds that It is substantially inadequate for attainment andmaintenance of anational standard. In accordance with the statutory man- date, the Environmental Protection Agency will make a continuing evaluation of the State plans and will, as nec- essary, call upon the States to make revisions. EVALUATION OF LEGAL AunIonnry States were required to have the legal authority specified In the Administrator's regulations. With one exception, States were required to have the speelfled legal authority available to them at the time they submitted their Implementation plans. The one exception is authority to carry out land-use and transportation control measures; where a State's control strategy include3 such measures, the State plan must set forth a timetable for obtaining the necessary legal authority.Where It was determined that a State's air pollution control statute does not explicitly provide all of the required legal authority, the State's attorney general was consulted for an opinion as to whether the neces- sary authority is conferred by a general grant ofpowers In the air pollution control statute orprovided In other statutes. Where a State plan Indicated that one or more local agencies will be responsible for carrying out any portion of the implementation plan, a similar assesment was made of the legal authority available to such local agencies. A com- plete record of the Environmental Protection Agency's assessment oflegal au- thorityis maintained in the Office ofthe Associate General Counsel, Air Quality and Radiation Division, Rockville, Md, 20852. DELEGATION OF LEGAL AUTHORITY The legal authority which each State wasrequired tohave carry outIts iniplementation plan Is specified by 40 CFR 51.11. Subparagraphs (5) and (6) of §51.11 (a) require each Stateto have the authority toobtain Information to determine compliance with applicable laws and regulations; require recordeplng; make inspections; conduct tests; require sources toinstall and maintainmonitoring equipment; require periodic reporting; and release emission data to the public. The Administrator has such authority under section 114 of the Act and can delegate It to States. Where a State lacks the authority required by 40 C R 51.11(a) (5) or (6), that portion ofitsimplementation plan is disapproved herein; however, if the State has re- quested delegation ofthe Administrator's authority, and ifthe State's source sur- veillance procedures are approvable, the needed authority Is delegated herein, Where a State lacks the authority re- quired by 40 CPR 51.11(a) (5) or (6) but has not requested delegation of au- thority, the Administrator cannot approve source surveillance procedures eventhough theprocedures may betechnically adequate. The State can correct this deficiency byrequesting adelegation of authority; such requests may bemade at any time and should be addressed to the appropriate Regional Administrator. FEDERAL REGISTER, VOL. 37, NO. 105-WEDNESDAY, MAY 31, 1972 

## 10842

### RULES AND REGULATIONS ATTAn[mN Or'PamARY STANDARDS 

### " The Act requires attainment of primary standards as expeditiously asprac- ticable, but not later than 3 years from the dateof the Administrator's approval of a State plan except where an extension is granted by theAdministrator; it requires attainment of secondary standards within a reasonable time. Except where extensions have been requested, Stateplans generally provide for attainmentoftheprimary standards in3years. Whethermore expeditious attainment of the primary standards is practicable is a question that will be subject to continuing examination in connection with the Administrator's review ofthe compliance schedules andprogressreports tobesubmitted by the States and as part of the Administrator's continuing surveillance of State activities. It is already clear, -however, that the aggregate emission

control requirements of the 55 State plans willcreatesuch agreat demandfor clean fuels, emission control equipment, and other items that attainment ofthe primary standards in many urban areas in significantly less time than 3 years generally will notbe feasible. 

### ATTAINW DAs Each State plan mustspecify thepro- jected dates of attainment of primary and secondary standards. Where a State plan sets forth a control strategy and regulations adequate for attainment of the national standards within the time periodsprescribed bythe Actbut fails to specify an attainment date, the Administratorwillpromulgate attainmentdates meeting therequirements ofthe Act. MAlrMrAcE oF STANDARDS Where existing air pollution levels ex- 

### ceed thenational standards, State plans were expected to provide for the degree of emission reduction necessary for attainment and maintenance of the na- tional standards, including the degree of emission reduction necessary to offset the probable imp~act ofprojected growth of population, industrial activity, motor vehicle trafc, or other factors. There is a great deal of uncertainty involved in projecting growth and predicting its impact on air quality. Growth projections extending more than 2 or 3 years into the future are necessarily generalized and inevitably are based on a variety of assumptions,many ofthem whichare,at best,tenuous.Evenwhere growth policies have been adopted by State or local governments, theynormallyprovide only general guidelines. Techniques fortranslating,generalized projections of popula- tion and industrial growth into predic- tions offuture air quality do not exist. Accordingly, States were limited in the extentto which they could develop con- trol strategies adequate not only for attainment, but also for maintenance, of the national standards. Since the EnvironmentalProtectionAgency's capability ofplanning for continued maintenance ofthenationalstandards issubjecttothe same limitations, and since State and local governments clearly should not lightly bedeprived ofthe opportunity to plan andcontrol growth Inamannerbest suitedtotheneeds andpreferences ofindividual communities and their Inhabitants, withdue consideration ofenvironmental impacts, the Administrator, at thistime,isnotproposingsubstitute con- trol strategies based on considerations related solelytomaintenance ofnational standards. States are required, however, to prevent construction, modification, or operation ofanystationary sourceatany location where its emissions will prevent the attainment or maintenance of a national standard; the Administrator will promulgate appropriate regulations wherever State plans are Judged inadequate in this regard. Thus, all State plans will include this mechanism for minimizing the effects of growth on air quality.New source performance standards promulgated by the Administrator under section 111 of the Act will also serve to minimize the impact of growth. Furthermore, theActauthorizes theAdministrator to requirerevision ofa State planwheneverhefindsthat it issubstantially inadequate to attain ormaintain a national standard.It is the Administrator's intention to make a continuing ex- amination of the adequacy of State plans, and, where necessary, to call for revisions. States should be aware that failure toprovide formaintenance ofthe national standards could necessitate re- straints on population and industrial growth and/or further restrictions on emissions from existing sources of air pollution.

EVALUATION OP'

### CONTROL STRATEGMr A "control strategy" is a combination of measures designed to achieve the aggregate reduction ofemissions necessary for the purposes of attainment and maintenance of a national standard. The Administrator's regulations (40 CFR 51.13 and 51.14) set forth procedures, i.e., proportional or diffusion modeling, to be employed by the States in demonstrating that their control strategies will be adequate for these purposes. Evaluation of the control strategies generally included assessment of the accuracy ofthe data relied upon by a State in demonstrating the adequacy of control strategies, the validity of any assumptions made by the State, and the accuracy of the calculations employed in the modeling exercises. In addition, a determinationwas made as towhether the controlstrategy would besuficiently comprehensive. SULMUR OxMDs AND PARTICULATE M&ATTR

The national standards for sulfur oxides and particulate matter include both short-term standards, e.g., maxi- mum 24-hour concentrations not to be exceeded more than once per year, and long-term standards, Le., annual aver- age concentrations. State plans were re- quiredto setforth controlstrategies adequate for attainment and maintenance of both the short-term and long-term standards, with the exception ofthe 24- hour secondary standard for sulfur ox- ides and the annual average secondary standard for particulate matter,both of 'which are guidelines. Where State plans did not explicitly demonstrate that a 

### 10843 control strategy is adequate for attainment andmaintenance ofshort-term, as well as long-term standards, the Administrator has made judgments based on available data regard peak-to-mean ratios;point-source controlmeasures,for example, are likely to reduce the frequency and Intensity ofpeakconcentrations. thus altering peak-to-mean ratios andincreasing thelikelihoodthat a con- trol strategy adequate for attainment of an annual average standard will also be adequate for attainment of short-term standards. FUEL AVArABn=



### The State implementation plans to control SOx generally have been responsive to the mandates of the Ciean Air Act. The plans provide for meeting by 1975primaryairqualitystandards which are designedtoprotect thepublic health. In most cases, the States determined 1975 tobe the "reasonable time" allowed by the Act to meet the secondary air quality standards for SOz which are designed to protectthe publicwelfare.Fuel combustion regulations were designed to achieve both the primary and secondary standards by the 1975 date. n most States these emission regulations were made to apply statewqlde, without re- gard to the differing air quality in regions withintheState.

It is clear that achieving these rigor- ous State standards In the time prescribed would significantly enhance air quality in many areas of the Nation, as contemplated bytheCleanAirAct.However, in addition to reviewing the effectiveness of each State implementation plan, this Agency and the Federal Government have an obligation to assess the impact of the various plans in the aggregate. From this standpoint, there Is strong evidence that the complete implementation of the plans as sub-. mitted maynotbe attainable in the time prescribed.

Because ofphysical limitations on our ability to clean the emissions of high sulfur fuels on a large scale in the time permitted by the statute, achievement of the particulars of the State plans would require the availability of large additional supplies of "clean!" fuelsnatural gas and low sulfur coal and oil. Since fuel desulfurlzatlon facilities are unlikely to be built on the scale which would be required to fullyimplement all State plans by 1975. it appears that all State plans can be completely imple- mented by 1975 only with a major short term shift to naturally clean fuels. Unfortunately, these naturally clean fuels arenotlikelytobeavailableIn quantities necessary tomeettheprojected demand.

Unfortunately, our long-overdue con- cernfor air quality comes atatimewhen the abundance ofcleaner energyfuels in theUnited Statesisrapidly disappearing and energyexperts arebecomingworried about our ability tomeet ourenergy fuel needs even independent of environmental considerations. Given the limits on the supplyof naturally cleanfuels in the short run,thewell publicizedshortage of natural gas In this country, and the physically disruptive taskofsubstituting FEDERAL REGISTER, VOL. 37, NO. 1OS-WEDNESDAY, M-'AY 31, 1972

### RULES AND REGULATIONS theuse ofhugeamounts ofclean fuelsby energy producers and users at a time when traditional fuels such as natural gas are in short supply, it is apparent that the Nation faces a difficult task.

It is also apparent that the cost of this effort, translated into costs of fuel and electric energy to our economy and to individual energy consumers, will be substantial and cannot be wholly ig- nored. On the other hand, appropriate enviromental costs must be recognized in the price ofenergy if we are to allocate our total resources properly.

There are alternative strategies which, should permit achievement of the goals 'of the Clean Air Act within the legisla- tive deadlines, but theapproach must be twofold. First, implementation of the standards must take into account the limits ontotal availability ofclean fuels. Second, government must also address the problem of creating economic and other incentives which ensure that natural or desulfurized clean fuels go to users in areas of greatest environmental need.

The Pure Air Act of 1972 (the sulfur emission tax), which is currently before Congress, is important to both aspects of this approach. The tax would permit clean fuels to reach users in areas of environmental need by providing a strong economic incentive for those users to bid for the clean fuels. The tax would also increase -the availability of clean fuels by providing an economic stimulus both to develop new clean fuel resources, and to perfect technology for cleaning fuels before combustion, and for purifying exhaust gases.

Preliminary analysis by EPAindicates the re.l possibility that, under current conditions in the domestic and world fuel markets including the absence of the sulfur tax, all aspects of the State Plans In the aggregate cannot be achieved by 1975 despite the best efforts of both government and the private sector. Pending further study, EPA is approving orpromulgatingregulations for meeting both the primary and sec- ondary SO% standards. The States should proceed to develop compliance schedules on the assumption that both standards can be met. In the meantime EPAwill be completing its studies ofthe aggregate situation and will suggestnec- essary changes to the States, and likewise modify federally promulgated sox regulations for achievement of the sec- ondary standard where appropriate. Highestpriority mustbe givento achieving the primary standards (health re- lated) by the statutory deadline.

At this time, the States mostlikely to beaffectedby this shortage ofclean fuels include Illinois, Indiana, Kentucky, Wisconsin, Michigan, Ohio, Tennessee, Alabama, Pennsylvania, West Virginia, Georgia, and New York, but others will also need to.consider the availability of fuelsin developing complianceschedules.

For its part in addition to completing this work, EPA intends to be vigorous in urging other Federal agencies andthe Congress to adopt energy policies which will stimulate the availability of-needed clean fuels and insure their availability to areas ofgreatest need,consistent with 

### environment, national security, con- sumer and other considerations. 'NITROGEN DIOXIDE Where attainment of the national standard for nitrogen dioxide would re- quire additional emission reductions beyond those expected to result from Federal motor vechicle emission standards, the Admistrator's regulations (40 CPR 51.14) required States to provide for the degree of nitrogen oxides emission reduction 'attainable through the application of reasonably available technology for the control of stationary source emissions of nitrogen oxides, as defined by 40 CFR. Part 51, Appendix B. Hydrocarbon emission reductions arising from the Federal motor vehicle standards or from transportation con- trol measures undertaken to implement the national standards for photochemi- cal oxidants will tend to reduce ambient air concentrations of nitrogen dioxide. In accordance with 40 CFR 51.14, this combination of stationary and mobile source control measures is considered an adequate control strategy for imple- mentation of the national standards for nitrogen dioxide. Studies aimed at pro- viding an improved basis for developing and evaluating nitrogen oxides control strategies are underway. Based on the results ofthese studies, the Administrator will determine whether revision of the State plans for implementation of the national standards for nitrogen dioxide will be necessary; such revisions maynecessitate, among other things, the development and application of nitrogen oxides emission control techniques goingbeyond those which are now available. Pending such action, States' re- quests for 2-year extensions of the deadline for attainment of this national standard have not been evaluated. HYDROCARBONS, The national standard for hydro- carbons (40 CFR 50.10) is aguide to the formulation of control strategies for.attainment and maintenance of the na- tional standard for photochemical oxidants. Accordingly, State plans were not required to provide for' attainment and maintenance of the national standard for hydrocarbons, per se,

TRANSPORTATION CONTROL MEASURES 

### TheActand theAdministrator's regu- lations (40 CPR Part 51) require States to take steps to reduce emissions from transportation sources wherever such steps are necessary for attainment and maintenance of national ambient air quality standards. In August 1971, when the Administrator's regulations were promulgated, it was recognized that States have had practically no experi- ence with transportation control meas- ures as a means of dealing with air qualityproblems andthat available data were not sumcient to-permit States to develop meaningful transportation control schemes andpredict their impact on air quality. The Environmental ProtectionAgencyhad alreadybegun an assessment of the extent to which various transportation control measures, includFEDERAL REGISTER, VOL. 37, NO. 105-WEDNESDAY, MAY 

### Ingmotorvehicleinspection andinstallation of emission control devices on in- use automobiles, could be expected to produce improvements in airquality, but it was apparent that the results would notbe available within the time allowed for development of State plans. Accordingly, theStates were advised thatadoption of transportation control schemes could be deferred beyond the statutory deadline forsubmittalofimplementation plans but that State plans would have to define the degree of emission reduction to be achieved through transporta- tion control measures and Identify the measures being considered. States were further advised that they would have to submit,no later thanFebruary 15, 1973, together with their first semiannual progress reports, definitive transportation control plans, including Identification ofthe specilflfc measures to be implemented, demonstration of the adequacy of these measures for attainment and maintenance of the national stand. ards, and adetailed timetable forobtaining any necessary legal authority and taking allother stepsnecessary toimplementthevariousmeasures.The EnvironmentalProtection Agency,incooperation with the Department of Transportation, will provide assistance to the States in the development of their transportation controlplans. COMPLIANCE SCHEDULES 

### State plans were required to specify the dates by which all sources must be in compliance with applicable regulations, except that, where a State plan provides for negotiating compliance schedules for individual sources, such schedules are required to be submitted to the Administrator no later than the time of submittal of the State's lrst semiannual progress report. States generally have either prescribed a terminal date for compliance by all sources, with indiviiual source schedules, includinr schedules of incremental steps toward compliance, to be negotiated, or have made regulations effective almostimmediately, with compliance schedules to be negotiated and effectuated through a variance procedure. Either approach is considered acceptable: Provided,flrst, That compliance with all regulations related to attainment of national am- bient air quality standards will be achieved bytheattainment datespecified in the State plan or prwcrlbed by the Administrator, and second, that provi- sion is made fornegotiating compliance schedules, including incremental stepsin cases where the terminal date is more than 18 months away. EMERGENCY EPISODES 

### State plans were required to set forth episode criteria, I.e., pollutant concen- trations atwhich specified emission con- trol actions will be initiated in order to prevent significant harm to the health of persons. Episode criteria wore required to be adequate to protect against occurrence ofthe significantharm levels prescribed by the Administrator (40 CPR 51.16). Emission control action plans were required toprovide for abate31, 1972 

## 10844

### RULES AND REGULATIONS ment adtion dealing with area sources. e.g., openburning, commercial and residential incinerators, andmotor vehicles, and to provide for development of individual standby abatement plans for all stationary sources emitting 1410 tons per year or more. Where episode criteria dnd/or emission control action plans applieable to area sources *andmotor ve- hicles were not submitted or were disapproved, the Administrator is not prescribing substitute provisions, but, 

### rather, in carrying out his responsibilities under section 303 of theAct, will be guided by the suggested episode criteria and emission control action plans set forth in the Administrator's regulations (40 CFR Part 51, Appendix L). Where episode criteria and/or emission control action plans are approved, the Administrator willmake use ofthem intheevent that it is necessary to initiate action under section 303. In eithercase,theAdinitrator,in acting under section 303, may also take into consideration other relevant information andadvice, including .medical-scientific opinions on en- dangerment to the health of persons. Where a State plan fails to provide for public announcements of episode stages or fails to provide for development of standby abatement plans for stationary sources emitting 100 tons peryear or more, the Administrator willpromulgate regulations to correct such deficiencies. AIR QuhnrrY SURVEILLANCE Where a State'i provisions for air quality surveillance do notmeet the re- quirements of theAdministrator's regulations (40 CFR 51.17), the deficiencies will be identified in the evaluation re- port, and the Environmental Protection Agency will work with the State in cor- recting the deficiencies. Insofar as air quality monitoring methods are con- cerned, the only methods currently approved are the reference methods prescribed by the Administrator (40 CPR Part 50) simultaneously with a promulgation of the national standards. With respect to carbon monoxide, photochemical oxidants, and hydrocarbons, the Administratorprescribed an analytical principle; any methodemploying ex- actly the same analytical principle is considered a reference method, provided that it meets the performance 8pecifications set forth in the Administrator's regulations (40 CFR 51.17). For all pollutants, methods other than the refer- encemethods prescribed bytheA-ministrator may be approved if they are shown to be equivalent to thexeference methods. Equivalency testing guidelines arebeing developed by theEnvironmentalProtection Agency. NEW SOURCES AND MODIFICATIONS State plans were required to provide for review ofnew sources and modifications ofexisting sources andforpreventing construction or modification if it would result in violations of applicable portions of a control strategy or interfere with attainment or maintenance of national standards. REsouncEs 

### States were required by section 110 of the Act to provide assurances that they will have adequate resources, I.e., personnel and funding, to carry out their implementation plans. The Administrator's judgment as to the probable adequacy of projected resources is based on a number of considerations, including estimates ofmanpower needs in re- lation to factors affecting thenature and magnitude of air pollution problems and previous evaluations ofthe performance of State and local air pollution control agencies. Where it istheAdministrator's judgment that a State's projected re- sources maybe inadequate, theEnvironmentalProtection Agency will workwith the State in correcting this deficiency. The Administrator's judgment on the adequacy ofresources should notbe con- strued as a commitment to provide financial support; such support is subject to the limitations of funds appropriated under theCleanAirAct. Two-YEAR EXTENSIONS TheActprovides for2-year, orshorter, extensions of the statutory deadline for attainment ofnational primary ambient air quality standardswhereneededtechnologyor otheralternatives arenotavailable or willnotbe available soonenough to permit attainment of the primary standards witlin the 3-year period prescribed by the Act. For the most pat, States'requests for such extensions were related to identified needs for application oftransportation control measures. The Administrator has determined that the leadtime necessary for development, adoption, and implementation of transportation control measures generally precludes their applicationon anysignificant scale within the next 3 years, i.e., they willnot beavailable soon enoughto permit attainment oftheprimary stdndardswithinthetimeperiodprescribedby theAct.Thisdeterminationwasreflected 

### in 40 CFR 51, in which emission control measures applicable to mobile sources, withminorexceptions, werenotIncluded among the various emission control measures judged to be attainable with reasonably available technology.Accordingly, it isthe Administrator'sjudgment that 2-year extensions are Justified in caseswheretransportatior controlmeas- ures will be necessary. It should be em- phasized, however, that timetables for attainment ofprimary standards willbe subject to continuing examination, and, wherethe Administrator findsthatmore expeditious attainment is practicable, States will be required to revise their timetables.

-Where States have submitted imple- mentation plans that do not provide for attainment of the primary standards within the 3-year period prescribed by theActandhave notrequested an extension, the Administrator has evaluated such State plans to determine whether 

### an extension is Justified under the pro- visions of the Act. The Administrator's determinations in such cases are re- flected below; these determinations wll also be subject to continuing examination,andwherenecessary, revision. ErGHvEW-MoNr= ExTmsrsoxs UndertheAct,theAdministrator may, wherever he determines necessary, ex- tend for a period of not more than 18 months the deadline for submittal of a Stateplanorportionthereofwhichwould implement a national secondary stand

### ard.40 CFR51.31 providesthat such extensions may be granted where attainment of a secondary standard will re- quire emissionreductions exceedingthose whichcanbeachievedthroughtheapplication of reasonably available control technology, as defined in 40CFRPart51, Appendix B. Where a State plan fails to provide for attainment of a secondary standard, and where attainment would require emission reductions exceeding thosewhich canbe achievedthrough the application ofreasonably available con- trol technology, the Administrator Is providing for an 18-month extension re- gardless of whether the State has re- quested one. Such extensions will be applicable to adoption of an adequate plan for implementation of the secondary standardbytheStateor promulgation of an adequate implementation planbythe Administrator. Emisom DATA AvrAmny TheActrequires assurancethat States will provide for public availability of emission data. Where a Statelacks legal authority to obtain and/orrelease emissiondata or wherethe State plan is deficient with respect to source-reporting requirements or procedures for public access to emission data, theAdministrator is disapproving the pertinent provislons ofthe State plan.The Administratorwillpromulgateregulationstoremedy such deficiencies. Under section 114 of the Clean Air Act, States may request delegation oftheAdministrator's authorityto obtain and releaseinformation. SouRcz MONTORING States must have legal authority to require stationary source owners oroperators to install, maintain, and useemission monitoring devices. The Environmental Protection Agency is making an analysis ofthePerformance of currently available emission (in-stack) monitoringdevices. Accordingly, Stateswerenot required by 40 CFR Part 51 to impose specific source-by-source requirements forin-stack monitoring atthis time. OiIONAL CONTROL Several State plans include regula- tions under which a source owner or operator could be exempt from compli- ance with an applicable emission limitation if he can show that emissions from the source will not interfere with attainment or maintenance of the na- tional standards. The Administrator neither approves nor disapproves such optional control features. States are advised, however, that action taken to allow any such exemptions will con- stitute revision of a State plan and FEDERAL REGISTER, VOL 37, NO. 105-WEDNESDAY MAY 31, 1972 

### 108,5

### 10846 therefore will be subject at that time to the Administrator's approval REVISIONS In accqrdance with the Act and the Administrator's regulations (40 

### CFR 51.6), all State plans are subject to re- vision, as necessary, to take account of revisions of the national standards, availability of improved or more ex- peditious methods of attaining the na- tional standards, or a finding by the Administrator that a State plan is substantially inadequate to attain ormaintain a national standard. Accordingly, whether a State has acknowledged that its implementation plan is subject to re- vision is considered immaterial. ENFORCEMENT Upon approval by the Administrator, a State plan is enforceable by the Administrator underthe CleanAir Act. All approved provisions relating to attainment and maintenance of national standards, including approved rules and regulations, are subject to such enforcement action.Where a Stateplanincludes regulations designedto attain andmaintain air quality betterthanthatrequired by the national standards, such regulations are subject to enforcement action under the Clean AirAct unless they are separate fiom those necessary for attainment and maintenance of the na- tional standards. PRoGREss REPORTS States are required to submit semiannual reports on their progress in car- ryingoutapproved implementation plans or portions thereof. For implementation plans approved herein, thefirstprogress reports will be due February 15, 1973. A format for use in preparing and submitting such reports is being prepared and will be made available tothe States. PasvIous APPROVALS The State implementation plans approved 'herein supplement the portions previously approved by the Administrator, notice of which was published February 3, 1972 (37 F.R. 2581), at Part 52 ofTitle 40 ofthe CodeofFederal Regulations. Portions of State plans which have previously been approved remain in effect and unaffected bythe approvals published today. SCOPE OF APPROVALS Ingeneral, all portions of State plans which are related to attainment and and maintenance ofnational standards are aplroved unless specifically disapproved herein. JUDICIAL REVIEW The Administrator's approval or promulgation of implementation plans, or portions thereof, issubject tojudicial re- view under section 307(b) (1) of the Clean Air Act. For purposes of section 307(b)(1), the .30-day period within which a petition for review may be filed will be considered to runfrom the date of publication in the FEDERAL REGISTER of a notice of approval or promulgation ofaplan orportionthereof. 

### RULES AND REGULATIONS NOTE 

### Subpart A ofthe regulations includes general statementsregarding the type of provisions which will be promulgated by the Agency as necessary in various subparts. These statements are expressed in thepresent tense inorder to avoid re- visions of verb tenses at the time of promulgation. EFFECTIVE DATE These regulations are effective on the date of their publication in the FEDERAL REGISTER (5-31-72). The Agency finds that good cause existsfor notpublishing theseregulations as anotice ofproposed rulemaking andfor making them effective immediately upon publication, for the followingreasons:

1. Theimplementation planswere prepared, adopted, and submitted by the States, and reviewed and evaluated by the Administrator pursuant to 40 CFR Part 51, which, prior to promulgation, had been published as a notice of proposed rule-making for comment by interested persons, and

2. The approved implementation plan provisions were adopted In accordance with procedural requirements of State andFederal law,which providedfor adequate public participation through no- tice, public hearings, and time forcom- ment, and consequently further public participation isunnecessary. (42 

### U.S.C. 1857C-5)

Dated: May26,1972. WI.LWAm D. RucxEcsAus, Administrator. NOTE: Incorporation byreference provisions approved by the Director of the Federal Register on May 18, 1972.

Part 52 f Chapter I of Title 40 of the Code of Federal Regulations is amended byredesignating existing §52.1 as new Subpart EEE, §52.2850 and by adding newSubparts A-DDD as follows: Subpart A-General Provisions 

### § 52.01 Definitions.

All terms used in this part but not defined herein shall have the meaning given them in the Clean Air Act and inPart51 ofthis chapter. § 52.02 Introduction. (a) This part sets forth the Administrator's, approval and disapproval of Stateplans andthe Administrator'spro- mulgation of such plans or portions thereof. Approval of a plan or any portion thereof isbased upon a determinationby theAdministrator thatsuch plan or portion meets the requirements of section 110 ofthe Actand theprovisions ofPart51 ofthis chapter. (b) Any plan or portion thereof promulgated by the Administrator substitutes for a State plan or portion thereof disapproved by the Admini trator ornot submitted by a State, or supplements a State plan orportionthereof. The promulgated provisions, together with any portions of a State plan approved by the Administrator, constitute the applicable plan for purposes of the 'Act. (c) Wherenonregulatoryprovisions of a plan are disapproved, the disapproval is noted in this part and a detailed evaluation is provided to the State, but no substitute provisions are promulgated by the Administrator. (d) All approved regulatory provisions of each plan are incorporated by reference in this part.Regulatory provisions ofaplan approved or promulgated by the Administrator are enforceable by theAdministrator and the State, and by local agencies in accordance with their assigned responsibilities under the plan. (e) Each State's plan is dealt with in a separate subpart, which includes an introductory section Identifying theplan byname and the dateof Its submittal, a section classifying regions, and a section setting forth dates for attainment of the national standards. Additional cctions are included as necessary to rpeciflcally Identify disapproved provisions, to set forth reasons for disapproval, and to cet forth provisions ofthe planpromulgated by theAdministrator. I (f) Revisions to applicable plans will be included in this part when approved orpromulgated by theAdministrator. §52.03 MExensions.

Each subpart includestheAdministrator's determination with respect to any request under section 110(b) ofthe Act for an extension of the deadline forsubmitting that portion of a plan which implements a secondary standard or any request under section 110(o) ofthe Act for an extension of the 3-year deadline for attainment ofaprimary standard. § 52.04 Classificationofregions.

Each subpart Sets forth the priority classification, by pollutant, for each re- gion in the State. Each plan for each region was evaluated according to the requirements of Part 51 of this chapter applicable to regions of that priority. §52.05 Public availability of einission data. 

### Each subpart sets forth the Adminitrator's disapproval of plan procedures for making emission data available to the public after correlation with applicable emission limitations, and Includes the promulgation of requirements that sources report emission data to the Ad- "ministrator for correlation and public disclosure. §52.06 Legalauthority.

(a) The Administrator's determinationof.the absence orinadequacy oflegal authority required to be included in the plan is set forth in each subpart. This includes the legal authority of local agencies and State governmental agencies other than an air pollution control agency If such other agencies are assigned responsibility for carrying out a planorportion thereof. (b) No legal authority as such Is promulgated by the Administrator. Where requiredre-ulatory provisions are not included in the plan by the State because of inadequate legal authority, substitute provisions are promulgated bythe Administrator. (c) Where a Stateplan didnot clearly set forth a timetable for obtaining legal authority toestablish transportation and land-use controls necessary to attain or FEDERAL REGISTER, VOL 37, NO. 105-VIEDNESDAY, MAY 31, 1972

### RULES AND REGULATIONS maintain the national standards, the subpart sets forth a timetable for the acquisition of such authority and the adoption ofthe necessary control meas- ures. The State's failure to comply with thd timetable set forth in the subpart will be grounds for promulgation of the required measures bythe Administrator. § 52.07 Control strategies.

(a) Each subpartspecifies inwhat re- spectsthe controlstrategies are approved or disapproved, and also specifies the date by which an approved or promulgated control strategy will result in the attainment of the pertinent national standards.

(b) A control strategy may be disapproved as inadequate because it is not sufficiently comprehensive, although all regulations provided to carry out the strategy may themselves be approved. In this case,regulations for carrying out necessary additional measures are promulgated in the subpart. (c) Where a control strategy is adequate to attain and maintain a national standard butone ormore ofthe regulations to carry it out is not adopted or not enforceable bythe State,the control strategy is approved and the necessary regulations are promulgated by the Administrator. (d) Wherd a control strategy is adequate to attain and maintain air quality better than that provided for by a na- tional standard but one or more of the regulations to carryit out isnotadopted or not enforceable bythe State,the con- trol strategy is approved and substitute regulations necessary to attain and maintain the national standard are promulgated. 

### § 52.03 

### Rules andregulations.

Each subpartidentifies theregulations, including emissionlimitations, whichare disapproved by the Administrator, and includes the regulations which the Administrator promulgates. 

### §52.09 Compliance schedules.

(a) In each subpart, compliance schedules disapproved by the Administrator are identified, and compliance schedules promulgated by the Administratorare setforth. (b) Individual source compliance schedules submitted with certain plans have not yet been evaluated, and are not approved or disapproved. 

### §52.10 

### Review ofnew sources andmodifications. In any plan where the review procedure for new sources and source modifications does not meet thie requirements of §51.18 ofthis chapter, provisions are promulgated which enable theAdministrator to obtain the necessary information and to prevent coistruction or modification. 

### §52.11 Prevention of air pollution emergency episodes. (a) Each subpart identifies portions of the air pollution emergency episode contingency planwhich are disapproved, and sets forth the Administrator's promugation of substitute provisions. (b) No provisions are promulgated to replace any disapproved air quality monitoring or communications portions of a contingency plan, but detailed critiques of such portions are provided to the State. 

### § 52.12 Source surveilance.

(a) Each subpart identifies the plan provisions for source surveillance which are disapproved, andsets forth the Administrator's promulgation ofnecessary provisions forrequiring sources tomaintain records, make reports, and submit information. (b) Noprovisions arepromulgated for any disapproved State or local agency procedures for testing, inspection, investigation, or detection, but detailed critiques of such portions are provided totheState. (c) For purposes of Federal enforcement, emissions from sources subject to provisions of aplan which did not specify a test procedure or subject to provisions promulgated by the Administrator will be tested by means of the procedures and methods prescribed in the appendix to Part 60 ofthistitle, and 

### emlssions from sources subject to ap- proved provisions of a plan wherein a 

### test procedure was specified will be tested by the specified procedure. §52.13 Air quality surveillance; resources; intergovernmental coopera- 

## tion. , Disapproved portions of the plan relatedto the airquality surveillance system, resources, and intergovernmental cooperation are identified in each subpart, andAetailed critiques ofsuchpor- tions are providedto the State. Nopro- visions are promulgated by the Administrator. §52.14 State ambient air quality standards. Any ambient airquality standard submitted with a planwhich is less strin

### gentthananational standardisnotconsideredpart oftheplan. 

## §52.15 Publicavailability ofplans.

Each State shall make available for public inspection at least one copy of the plan in at least one city in each region to which suchplan is applicable. All such copies shall be kept current. Subpart B-Alabama § 52.50 Identification ofplan.

(a) Title ofplan: "Air Quality Implementation Planfor the State of Alabama." (b) Theplanwasofflcially submittedonJanuary 25,1972. (c) SupplementalInformation wassubmitted onMarch 21, April 18, andApril 28, 1972,bytheAlabama AirPollutionControlCommission. 

### §52.51 Chassificationofregions.

The Alabama plan was evaluated on the basis of the following classifications: 

### Poldtarit

______ 

### Air quhlity " 

### I Photcheical

control region Particulate Sulfur ilitrogen Carbon 

### I oxidants

____________ 

### ,_ _ 

### L .Utter- 

## lozides dioxide 

## Vonxide (hydrocarbons) labama &Tombigbee Rivers Intrastate Columbus (Georgia)- Phenix City (Alabama) Interstate East Alabama Intrastate ;Ptropolitan Birmingham Intrastate Mobile (Alabaraa)-Pensacoli .Panama City (Florida)- Southern Mississippi Interstate Southeast Alhbama

Intrastate Tennessee Rivde Valley

(Alabama)-Currherland Hopuntains (Tennessee) , 

### Interstate II 

### I I SI



### §52.52 Extensions.

The Administrator hereby extends for 2 years the attainment date for the national standards for photochemical oxidants and carbon monoxide In the Metropolitan Birmingham Int~rastate Region and for photochemical oxidants in the Alabama portion of the Mobile (Alabama) -Pensacola-Panama City (Flor- ida)-SouthernMississippi InterstateRegion. FEDERAL REGISTER, VOL 37, NO. 105-WEDNESDAY, MAY 31, 1972 

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### RULES ANDA.REGULATIONS 10853 § 52.230 Control strategy: Nitrogen dioxide, Metropolitan Los Angeles Intrastate Region. (a) Therequirements of §51.14(c) (3) ofthis chapter are notmet sincethe plan does not provide for the degree of nitrogen oxides emission reduction attainable through application ofreasonably available control technology In theMetropolitan LosAngelesIntrastateRegion. §52.231 Preventionofairpollutionemergency episodes.

(a) The requirements of §51.16 of this chapter are not met since the plan provides nomeans of taking necessary emlIon control actions, specifies no episode criteria,nor delineates any of the procedures to be implemented during an emergency episode. § 52.232 Airquality surveillance.

(a) The requirements of §51.17(a) of this chapter are not met since the plan does not specify which air quality monitoring stations have been designated for the purpose of monitoring in an area of maximum pollutant concentrations and the proposed- network does notprovide for the required number of samplers In all regions. (b) The requirements of §51.17(b) ofthis chapter are notmet since methods of sampling analysis, data handling,,and data analysis were not adequately described in theplan. (c) The requirements of §51.17(c) of this chapter are not met since the plan doesnot provide for monitoring air quality during an emergency episode. 

### § 52.233 Review ofnewsources andmodifications.

(a) The requirements of §51.18(a) ofthis chapter are not met In the indicated portions ofthe following Regions since the regulations of theAir Pollution Control Districts (APCD) do not provide procedures for obtaining information prior to construction,nor themeans ofpreventing construction. (1) Sacramento ValleyIntrastate: (i) Colusa County APCD. (ii) SutterCounty APCD. (2) San JoaquinValleyIntrastate: (W 

### Calaveras CountyAPOD. (ii) Fresno CountyAPCD. (ii) Kern County APCD. (iv) KingsCounty APCD. (v) Madera County APCD. (vi) Mariposa CountyAPCD. (vii) MercedCountyAPCD. (viii) SanJoaquin CountyAPOD. (ix) Stanislaus CountyAPCD. (x) TulareCountyAPCD. (3) SoutheastDesertIntrastate: (i) KernCountyAPCD. (b) The requirements of §51.18(a) of this chapter are not met in the Indicated portions of the following Regions since theregulations of the AirPollution Control Districts (APCD) do not provide procedures for the review of new sources and modifications. (1) San FranciscoBayAreaIntrastate: (i) BayAreaAPCD. (2) Sacramento ValleyIntrastate: (i) Sacramento CountyAPCD. (c) The requirements of §51.18(a) of this chapter are notmet In the indicated portions ofthefollowing Regions since theregulations ofthe AirPollution Control Districts (APCD) do notprovide themeans to prevent construction. (1) Metropolitan LosAngeles Intrastate: (D SantaBarbara CountyAPCD. (ii) Ventura CountyAPCD. (2) South CentralCoastIntrastate: (i) Santa Barbara CountyAPCD. (d) The requirements of §51.18(c) ofthis chapter arenot met In the indicated portions ofthe followingRegions since theregulations oftheAir Pollution Control Districts (APCD) do not include a means to prevent construction or modification ofsources ifsuch construction ormodification wouldinterfere with the attainment ormaintenanceofanational standard.

(1) GreatBasinValleyIntrastate: (i) InyoCounty APCD. (ii) MonoCountyAPCD. (2) Metropolitan LosAngelesIntrastate: (i) LosAngeles CountyAPCD. (Ii) Orange County APCD. (iii) Riverside County APCD. (iv) San BernardinoCounty APCD. (3) North-Central CoastIntrastate: (i) Monterey-Santa Cruz UnifiedAPCD. (ii) SanBenito CountyAPCD. (4) NorthCoastIntrastate: (i) HumboldtCountyAPCD. (ii) Mendocino County APCD. (iii) SiskiyouCounty APCD. * (5) NortheastPlateau Intrastate: (1) LassenCountyAPCD. FEDERAL REGISTER, VOL 37, 

### NO. 105-WEDNESDAY, MAY 31, 1972

### RULES AND REGULATIONS 

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### RULES AND REGULATIONS
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### RULES AND REGULATIONS

_ _Polutant kir quality Particulate Sulfur Nitrogen Carbon 

### Potochmlcal

control reg.on matter oxides di6xide uonoxide oxidants Pri- Secon- Pri- Secon- (hydrocarbons) m__

_ ar y 

### dory carI dar - aestern Hountain July July Intrastate 1975 1975 b b b b b "astern 1.!ount~in July

Intrastate a 1975 b b b b b Retropolitan Char- ul July 

### July July July

lotte Interstate 975 1975 1975 1975 b b 1975 ,%orthern Piedmont July July

Intrastate 1975 1975 b b b b b Eastern Piedmont July July

Intrastate 1975 1975 b b b b b Northern Coastal Jly July

Intrastate 975 1975 b b 

### b b 

### b Southern Coastal July

Intrastate a- 1975 b b 

### b b 

### b Sandhills July

Intrastate a 1975 b b b a. Airqualitylevelspresentlybelowprimary standards. b. Airquality levelspresentlybelow secondary standards. Subpart JJ-Nortih Dakota 

### § 52.1820 Identification orplan. (a) Title of plan: "Implementation Plan for the Control of Air Pollution for theState ofNorth Dakota." (b) Theplan was officially submittedon January 24,1972. 

### § 52.1821 Classificationofregions.

The North Dakotaplanwas evaluated on thebasis ofthefollowing classifications: Pollutant ' Photochanical Air quality Particulate Sulfur Nitrogen. Carbon oxidants control region mattdr oxides dioxide Imonoxide (hydrocarbons) Metropolitan FargoMoorhead Interstate II III III III III North Dakota

Intrastate . II III III III III. §-52.1822 Approval status.

The Administrator approves North Dakota's plan for the attainment and maintenance ofthenational standards. 

### § 52.1823 Attainment dates fornational standards.

The following table presents thelatest dates by which thenational standards are to be attained. These dates reflect the information In North Dakota's plan.PollutantParticulate Sulfur

matter oxides Photochmical Air quality Pri- Secon- Pri- Secon- 1litrcen Carbon oxidants control reaion rary dary Ery dory dioxi2e roroxide (hydrocarbons) *tropolitan Fargo- Feb. Feb. Voorhead Interstate 1975. 1975 a a a a a forth Dakota Feb. Feb: Intrastate 1975 197i a a a a a a. Airquality levelspresentlybelow secondary standards.

FEDERAL REGISTER, VOL 37, NO. 105--WEDNESDAY, MAY 31, 1972 

## 10885

### 10886 RULES AND REGULATIONS Subpart KK-Ohio §52.1870 Identificationofplan.



### (a) Title of plan: "Implementation Plan for the Control of Suspended Par- ticulates, Sulfur Dioxide, Carbon Monoxide, Hydrocarbons, Nitrogen Dioxide, and Photochemical Oxidants intheStateofOhio." (b) Theplan was officiallysubmitted onJanuary 31,1972. (c) Supplemental Information was submittedon: (1) March 20 and May 8, 1972, by the Ohio Air Pollution Control Board, and (2) May 9,1972, bytheOffice oftheAttorney General. 

## §52.1871 Classification ofregions.

The Ohio plan was evaluated on the basis of the following classifications: Pollutant 

### Air quality Photochemical

control region Particulate SulfurIUitrogen Carbon oxidants r matter 

### oxidesIdioxide mon6xide I(hydrocarbons) 

### Greater Metropolitan Cleveland Intrastate F 

## r I III iuntington (WestVirgtinia)- Ashland (Kentucky)-Ports- nouth-Ironton (Ohio) Interstate I III III III Ill -lansfieId-l-lairion. Intrastate II II I1 II I1 *etropolitan Cincinnati Interstate I. II I III I *.etropolitanColumbus Intrastate 

### I Il. I III I ,;etropolitanDayton In.trastate I II I III I *:Ietrppol i

tan Toledo Interstate I I IIl I Nlorthwest Ohio Intrastate II I fll l'r III tiorthwest PennsylvaniaYoungstown Interstate I II IiI IIl IIl Parkersburg (West Virginia)-Marietta (Ohio) Interstate I II III III III Sandusky Intrastate III, III III III III Steubenville-WeirtonWheeling Interitate I I III III IIIiImington-ChillicotheLogan Intrastate iII III III III III Zanesville-Cambridge

Intrastate II IA III III- III §52.1872 Extensions.

(a) The Administrator hereby extends for 18 months the statutory timetable for submission of Ohio's plan for attainment and maintenance of the secondary standards for particulate matter in the Greater Metropolitan Cleveland Intrastate and in the Ohio portion of the Steubenville-Weirton-Wheelng and Northwest Pennsylvania-Youngstown InterstateRegions. (b) The Administrator heresy extends for 2 years the attainment date for the national standard for photochemical oxidants in the Metropolitan Dayton Intra- 9tate Region and in the Ohio portion ofthe Metropolitan Toledo and Metropolitan Cincinnati InterstateRegions. 

### §52.1873 Approvalstatus.

With the exception set forth in this subpart, the Administrator approves Ohio's planforthe attainmentandmaintenance ofthenational standards. 

### §52.1874 Compliance schedules.

(a) The requirements of §51.15(c) of this chapter are not met since the com- pliance schedules, which extend over 18 months, that apply to the emission limitaFEDERAL REGISTER, VOL. 37, NO. 105-WEDNESDAY, tMAY 31, 1972

### RULES AND REGULATIONS

3
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### 10892 RULES AND REGULATIONS Subpart PP-South Carolina § 52.2120 Identificationofplan..,

(a) Titleofplan: "SouthCarolinaAirQualityImplementation Plan." (b) Theplanwasofficially submittedonJanuary 21, 1972. (c) Supplemental information was submitted on May 4, 1972, by the South CarolinaPollutionControl Authority. §52.2121 Classification of regions.



### TheSouthCarolinaplanwasevaluated onthebasisofthefollowing classifications: Pollutant Air quality Particulate 5ulfur Nitogen Carbon Pilotochemical

co'itrol region matter oxides dioxide monoxide oxidants' __________________________(hydrocarbons) 

### Augusta (Georgia)- Aik~n XSouth Carolina) Interstate II III III III .letropolitan Charlotte Interstate 

### I II Ill III" I 

### Camden-Sumter

Intrastate 

### IH III III III III 

### Charleston Intrastate I I III III III Columbia Intrastate II III III III III Florence Intrastate III III II.1 I1 III Geogetowin Intrastate II III. III III III Greenville-Spartanburg

Intrastate I III II" III III Grednmood Intrastate III ill Ill III III Savannah (Georgia)- Bedufort (South Carolina) Interstate I I III III III § 52.2122 Approvalstatus.



### With the exceptions set forth Inthis subpart, the Administrator approves South Carolina'splanforattainment andmaintenance ofthenational standards. §52.2123 Generalrequirements.



### (a) Therequirements of §51.10(e) ofthischapterarenotmetsince theplan does notprovideforpublic availability ofemissiondata. § 52.2124 Legal authority.

(a) Therequirements of §51.11(a)(5) ofthischapter are notmet sincethe plan does not present the legal authority to inspect, test, and require recordkeeping by existing sources. (b) The requirements of §51.11(a)(6) ofthis chapter arenotmet sincethe plan does not presentthe legal authority to require existing sources to install,maintain, and use emission monitoring devices and to allow the South Carolina Pollution Control Authority tomake emission dataavailable tothe public. §52.2125 Complianceschedules.

(a) Therequirements of §51.15(b) ofthis chapter are notmet since Regulation No.4AoftheSouthCarolina PollutionControlAuthorityRegulations and Standards (Air) does not provide for compliance by pulp and paper manufacturing plants within thetime period specified inthe planfor attainment and maintenance ofthe national standards. (b) The requirements of §51.15(c) of this chapter are not met since South Carolina's Standard No.2A and Regulation No.4Ado notprovide for increments of progressinthose compliance schedules that exceed 18 months. (c) The requirements of §51.15(d) ofthis chapter are not met since Standard No.2AoftheSouthCarolina PollutionControlAuthorityRegulations and Standards (Air) does not provide for attainment and maintenance of the national standards for sulfur oxides within the time specified pursuant to §51.10 (b) and (c) of this chapter because paragraph D of section II of this Standard allows for a possible variance to be given to fuel combustion sources ofsulfur dioxide. Paragraph D Is therefqre disapproved. § 52.2126 Review ofnew sources andmodifications. 

### (a) The requirements of §51.18(c) of this chapter are not met since the plan doesnotprovide for disapproving construction ormodification of stationary sources for interfering with attainment and maintenance of the national standards for particulate matter. FEDERAL REGISTER, VOL 37, NO. 

### 105-WEDNESDAY, MAY 31, 1972

### RULES AND REGULATIONS §52.2127 Source surveillance.

(a) The requirements of §51.19 (a) of this chapter are not met since the plan does not present the proceduresforrequiring owners or operators to maintain records andtomakeperiodic reportstothe Stateagency. (b) The requirements of §51.19(b) ofthis chapter are not met since the State agencyisunabletoinspectandtest stationary sources. 

### § 52.2128 Attainment datesfornationalstandards.

The following-table presents the latest datesbywhich the national standards are to be attained. These dates reflect the information presented In South Carolina's plan,exceptwherenoted. Po1 lutant 

### Air quality Particulate Su ur 'ow. oc=Cical control region ratter oxides ltro en rton 

## f oxidants rl- Secon- i-r-Secon-,' 

### ioxide onoxide (hydrccarbons)

_____________ a_ 

### y darv Ra ]dar
- 

### bugusta (Georgia)-Aiken (South Carglina) July July July July Interstate 1975 1975 1975 1975 a a a etropolitan Charlotte July July July July July Interstate 1975 1975 1975 1975 a a 1975 "ameen-SumterIntristate July July 

### a a a a 1975 1975 Charleston Intrastate July July July July 

### a a 1975 1975 1975 1977. olu bia Intrastate uly July a a a a a 1975 1975 Forence Intrastate a a a a a a a Georgetomn Intrastate July July a a a a a 1975 1975 reenville-Spartanburg uly July 

### a a a a a Intrastate 1975 1975 ,reemood Intrastate a a a a a a a lavannah (Georgia)-Beau- Sfet (SOI,; Ca; 1ina) !'flVir:ly 11,1fI Mull, a a a 

### Inerstate ,975 975 !1975 

### 1975.! I 

## II I 

### Iii II, ,Wo.--Datewhich is underlined Isproposedby the Administrator because the plan did notprovide aspecificdate orthedateprovidedwasnot acceptable.

a.Air quality levelspresentlybelow secondarystandards. Subpart QQ--Soulh Dakota § 52.2170 Identification ofplan.

(a) Title ofplan: "Air Pollution Control Regulations and Implementation Plan (b) Theplanwasofficially submittedon January27,1972. forthe StateofSouth Dakota.' (c) Supplemental informationwassubmitted on: (1) January 27, andMay2,1972. (2) April27,1972,bytheSouthDakotaAirPollution ControlCommission. § 52.2171 Classification ofregions.

The SouthDakotaplan wasevaluated onthebasis ofthefollowing classifications: Pollutant 

### Photochezica] Air quality .Particulate 

### Sulfur litrogen Carbon oxidants control region matter oxides dioxide ronoxid| (hydrocarbons) ,etropolitanSio.ux City .Interstate III III III III III &,tropolitan Sioux .FallsInterstate II III III III III 

### lack Hills - 

### Rapid City Intrastate III "III III III III _outh Dakota 

### Intrastate III III III III III FEDERAL REGISTER, VOL 37, NO. 105-WEDNESDAY, MAY 31, 1972 

### 10893

### RULES AND. REGULATIONS

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### RULES AND REGULATIONS 10895 through the application of reasonably available control technology in the TennesseeportionoftheMemphis InterstateRegion.

(b) The requirements of § 51.14 of this chapter are not met since the plan does not provide for attainment and maintenance of the national standard for photochemical oxidants in the Tennessee portion of the Memphis Interstate Region. 

### § 52.2226 Compliance schedules.

(a) The requirements of §51.15(c) of this chapter are not met since chapter V_. sections 2A, 2C, and 4B of theTennessee Air Pollution Control Regulations do not containincrements ofprogress forfuelburning sources ofparticulate matter larger than 4,000 millionB.t.u. heat input per hour, forIncinerators (particulate matter), and for nonprocess sources of sulfur dioxide and since chapter VII, sections 63 and 7(1) do notprovide increments ofprogress for proccs sources of sulfur oxides andfor sulfuric acidplants,respectively. (b) The requirements of §51.15(c) -of this chapter are not metsince section 3-22 of theMemphis-Shelby County Air Pollution Control Regulations does not contain increments of progress for the compliance schedules for fuel combustion sources largerthan 4,000 millionB.t.u.heatinputperhour. 

### § 52.2227 Prevention ofairpollution emergency episodes. (a) The requirements of § 51.16(b) (3) of thischapter are not met sincethe plan does notprovide for the enforcement of emission control actions formobile sources during airpollution emergency episodes. 

### § 52.2228 Review ofnew sources andmodifications.

(a) The requirements of §51.18(c) of this chapter are not met since section 53.3412(A) (1) of the Tennessee Air Quality Act, chapter IX of the Tennessee Air Pollution Control Regulations, section 27 of the Knox County Regulations, section 4-1-16 of theDavidson County Metropolitan Code, and section 3-5 of the Memphis Regulations do not provide for disapproving construction or modification of a stationary source if such construction or modification will violate an applicable portion of the control strategy or will interfere with attainment and maintenance ofthenational standards. § 52.2229 Rules andregulations. (a) The requirements of §51.22 of this chapter are not met since the stationary source regulation necessary for attainment andmaintenance ofthenational standard for nitrogen dioxide in the Tennessee portion of the Chattanooga Interstate Regionisnot adopted. § 52.2230 Attainment dates fornational standards.

The following table presents the latest dates by which thenational standards are to be attained. These dates reflect the information presented in Tennessee's plan, except wherenoted.

SIvol F 

### tant I Air quality - 1arttculate 11 ulfur litrogan Icarbon " eh0t1 ni"ca control region rtter oxides dioxide Ponoxide oxidants ri- 

### Secon: iPrl- 

### Secon- hydrocarbons) _______ary dary ,Mry dary Eastern TennesseeSouthiestern Virginia July July July July Interstate 1975 1975 1975 1975 c C C fennessed River

Valley-Cuiberland ,Yountains Intra- July July July July

state 1975 1975 1975 1975 C X b Riddle Tennesree July July July

Intrastate 1975 1975. c c C C 1975 WIestrn Tennessee uly July

Intrastate 1975 1975 c c c C C Chattanooga July July

Interstate 1975 1975 c c a c c X.etropolitan lenphis July July

Interstate 1975 1975 c c a c a NoTE.-Footnotes which are undedined are propozed by the Adminstrator becaue the plan did not provide a specific date or the date provided Was not acceptable.

a. 3yearsfromplanapproval orpromulgation. b. Airqualitylevelspresently belowprimarystandards. c. Airqualitylevelspresentlybelowcecondary -tandards. Subpart SS-Texas § 52.2270 Identification ofplan.

(a) Title of plan: "Texas Air Pollution Control Implementation Plan." (b) Theplan was officially submitted onJanuary 28,1972. () Supplemental information was submitted on February 25, May 2, and May3,1972, bytheTexasAir ControlBoard. FEDERAL REGISTER, VOL 37, NO. IOS-WEDNESDAY, MAY 31, 1972

### 10896 RULES AND REGULATIONS 52.2271 Classification ofregions. TheTexasplanwasevaluated onthebasis ofthefollowing classifications: ' ' • Pollutant o 

### Air quality ... •Photochemical '

control region Particulate Sulfur nitrogen Carbon oxidants matter oxides dioxide monoxide 

### (hydrocarbons) Abilene-14ichita

Falls Intrastate II II III III III Amarillo-Lubbock

Intrastate II I III III. III Austin-!aco

Intrastate II III III III I 3r ,nsvi ieLaredo Intrastate r III III III III Corpus ChristiVictoria Intrastate III M4idland-Odessaa

*SanAngelo Intrastate II II III Ill IlI Mletropolitan

HoustonGalveston Intrastate I IIl I M-letropolitan Dallas-Fort Worth Intrastate II III III ,etropolitan San Antonio Intrastate .11 III III III I SouthernLouisianaSoutheast Texas Interstate II I Ill IIl El Paso-Las Cruces Alamogordo -Interstate III Shreveport--TexarkanaTyler Interstate II III III III Ill § 52.2272 Extensions. 

### (a) The Administrator hereby extends for 2 years the attainment date for the national standards for photochemical oxidants (hydrocarbons) In the Corpus Christi-Victoria and Metropolitan Houston-Galveston Intrastate Regions. §52.2273 Approvalstatus.

With the exceptions set forthin this subpart,the Administrator approves Texas' planforthe attainment andmaintenance ofthenational standards. §52.2274 Generalrequirements.

(a) The requirements of §51.10(e) of this chapter are not met since the plan doesnot specifically describe the procedures by which the State will make emission dlata,as correlatedwithapplicable emissionlimitations,available tothepublic. § 52.2275 Controlstrategy:Photochemical oxidants (hydrocarbons). 

### (a) The requirements of §51.14(a) of this chapter are not met since the plan does notprovide the degree ofhydrocarbon emission reduction necessary to attain and maintain the national standards for photochemical oxidants (hydrocarbons) in the Corpus Christi-Victoria and Metropolitan Houston-Galveston Intrastate Regions. FEDERAL REGISTER, VOL. 37, NO. 105--WEDNESDAY, MAY 31, 1972

### RULES AND REGULATIONS 

### § 52.2276 Controlstrategy andregulations:

### Nitrogenoxides.

(a) The requirements of §51.14(c) (3) of this chapter mre not met since the' plan does notprovide for the degree ofnitrogen oxides emislon reduction attainable through the application of reasonably available control technology In the Corpus Christi-Victoria,Metropolitan Houston-Galveston and Metropolitan DallasFortWorthIntrastateRegions. (b) The requirements of §51.22 ofthis chapter arenotmet since Texas' Regula- tion VII, Control of Air Pollution from Nitrogen Compounds, does not contain emissionlimitations or other measures necessary for attainment and maintenance ofthenational standards in theMetropolitan Dallas-FortWorth Intrastate Region. Therefore, RegulationVIIisdisapproved for thisregion. § 52.2277 -Sourcesurveillance.

(a) Therequirements of §51.19 (a) of this chapter are not met since the plan. does not provide legally enforceable procedures to require source to maintain. records andperiodically reportto the StateInformation on the nature and amount ofemissions. § 52.2278 Request for 2-year extension: Photocheniacal oxidants (hydrocarLons).

(a) Texas' request under §51.30 of this chapter is not applicable n the Met- ropolitan San Antonio Intrastate Region since the national standards for photo- chemical oxidants (hydrocarbons) willbe attainedby 1975. 

### § 52.2279 Attainment dates fornational standards.

Thefollowing table presents the latest dates bywhich thenational standards are to be attained. These dates reflect the information pre.ented InTexas' plan, except where noted. ___________________Potl utant

______ 

### Particulate su tur

Mtter oxides Photoch-cal ir Quality Pri- Secon-1 Pri- seon- fltroge Carbon oxld3nts; Control Regions rary darv ry darv dioxide ronoxidc (hydre:arbns) Abilene-Nichita Dec. Dec. Dc. Dec.

Falls Intrastate 1973 1973 1973 1923 b b b A-marillo-Lubbock Dec. Dec. Dec. Dcc. Intrastate 1973 1973 1973. 1973 b b b Austin-W1aco Dec. Dec. 1ec. "ec. Intrastate 1973 1973 1973 1973. b b Broi:sville-Laredo Dec. Dec. Dec, Dec. Intrastate 1973 -1973 .1973 1973 b b b Corpus ChristiVictoria Dec. Dec. Dec. r2c. duly,1977 Intrastate 1973 1.73 1973 1.973 a celidland-OdessaSan Angelo Dec. Dec. Dec. Dec. Intrastate 1973 1973 1973 1973 b b b :etropolitan HoustonGalveston Dec. Dec. Dec. Uzc. 

### July5

### 1977 Intrastate 1973 1973 1973 1973 b c. ,etropolitan DallasForth orth Dec. Dec. Dec. Uac. Intrastate 1973 1973 1973 1973 a b age Fetropolitan San Dec. Dec. Dec. Ilec.- Antpnio Intrastate "1973 1973 1973 1973 b b a c Southern LouisianaSoutheastTexas Dec. Dec. Dec. rec. Interstate 1973 1973 1973 1973 b 

### b El Paso-Las CrucesAlerogordo Dec. Dec. Dec. UPC. Interstate 1913 1973 1973 1973 b a aac Shreveport-Texarkana- Dec.. Dec. Dec. rec. Tyler Interstate 1973 

### 1973. 197311973 b h b NoTE.-Dates orfootnoteswhichareunderlinedarepropocedbytheAdmln'traterbecauc theplandoesnotprovide aspecificdate.

a. 3yearsfromplanapproval orpromulgation. b. Air qualitylevelspresentlybelowzecondary standardz. e. Atimetable forimplementing the transportat!oncontrol strateies is to be submitted nolaterthanFebruary 15, 1973,withthefi-t semiannual report. FEDERAL REGISTER, VOL 37, NO. lOS--WEDNESDAY, MAY 31, 1972 No. 105--Pt. Ir[-_.8 

### 10S97

### RULES AND REGULATIONS
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### RULES AND REGULATIONS 10901 § 52.2475 Legal authority.

(a) The requirements of §51.11(f) ofthis chapter are not met since authority tomake emission data available to the public isinadequate in thePuget Sound Air Pollution Control Agency, the Spokane County Air Pollution Control Authority, the Northwest Air Pollution Authority, the Southwest Air Pollution Control Authority, the Olympic Air Pollution Control Authority, the Yakima County Clean. Air Authority, the Douglas County Air Pollution Control Commission, the Grant County AirPollution Control Authority, and the Tr-County Air Pollution Control Authority,because RCW 70.94.205 would require confidential treatment in certain circumstances if the datarelated to processes or production unique to the owner or operator, or were likely to affect adversely the competitive position of the owner or operator. 

### § 52.2476 Controlstrategy: Nitrogen dioxide.

(a) Therequirements of §51.14(c) (3) ofthischapter are notmet sincethe plan does not provide for the degree of nitrogen oxides emission reduction attainable through the application of reasonably available control technology in the Puget SoundIntrastateRegion. 

### § 52.2477 Source surveillance.

(a) The requirements of §51.19(a) of this chapter are notmet since the plan. does not set forthlegally enforceable procedures for requiring owners or operators of stationary sources to maintain records of, and periodically report to the State information on, the nature and amounts of emissions as may be necessary toenable the State to determine whether such sources are In compliance with applicable portionsofthecontrolstrategy. 

### § 52.2478 Attainment dates fornationalstandard.

The following table presents the latest dates by which the national standards are to be attained. These dates reflect the information presented in Washington's plan,exceptwhere noted.Particulate ulur Pl ln ratter oxides Photocheical Air quality Pr- 

### Secon- Pr- 

### econ- Hltrogen Carbn •

### oxinants control recion cary dav mary dar dioxide | noxido hydrcearbnss Eastern Washington- Northern Idaho Junel -Interstate a a c c c 1977a c 'orthernWashingtonIntrastate b a c c C C C lympic-Northvwest Washington Intrastate A a b a C c C 

### Portland Interstate July, July, a c c c 1975 1975 Pug'et Sound ec. Jan. Jan. .June June Intrastate 1973 a. 1975 1975 a 1977 1

### 9 77

### d outh Central'Washington Intrastate a a c C c C C Nor- -botnotes which are underlined are proposed by the Administrator because 

### tUs plan didnot provide a specific date or

### the date provided

### was not acceptable.

a. 

### 3years fromplanapproval orpromulgation. b. Airquality levels

### presentlybelowprimary standards. c. Airquality levelspresentlybelow secondarystandards. d.Transportation and/or land use control strategies are to 

### be aubmitted no later than February 

### 15,1973,withthefirstsemiannual report. § 52.2479 Transportation andland-use controls.

(a) To complete the requirements of §§ 51.11(b) and 51.14 ofthis chapter, the Governor ofWashingtonmustsubmittotheAdministrator:

(1) Nolater thanFebruary 15, 1973, the selection of the appropriate transporta- tioncontrolalternative andademonstration that saidalternative, along withWashington'spresently adopted source emissionlimitations for hydrocarbons and carbon monoxide andtheFederal MotorVehicle Control Program, will attain and maintain the national standards for photochemical oxidants (hydrocarbons) in the Puget Sound Intrastate Region and for carbon monoxide in the Washington portion of the Eastern Washington-Northern Idaho Interstate Region by June 1917. By this date (February 15, 1973), theStatealsomustinclude a detailed timetablefor imple- menting the legislative authority, regulations, and administrative policies required for carrying outthe transportation control alternative by June 1977. (2) Nolater thanJuly1, 1973, thelegislative authority thatisneededfor carrying outtherequiredtransportation controlalternative.

(3) No later than December 30, 1973, the necessary 'adopted regulations and administrative policies needed toimplement the transportation control alternative. FEDERAL REGISTER, VOL 37, NO. 1OS-WEDNESDAY, MAY 31, 1972

### 10902

.. 

### RULES AND REGULATIONS

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- eq O

9 . 0 

## ~ 10 0l4. SL 130 0 

## ~ .. 1.. .1. 0. .'.5' 040 14'~ U) 1 '4 "- 04 C-Cdu o~~In t.I 0 4I 0 .us 0- 3 

## ~ gs 4-4 =C) w 0 0 . fl
- . .

### RULES AND REGULATIONS

woo- 'e.5- 0 A~ go

9040 ti 04 004-.0

r. c 1o

0 , 0 s -

r. P, - P 4 0 0 Ca. =- C' w .

- ZA 44S

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- e 00 

### oL 11 aqE 5 S044 coo0 + 4 4 C 02 87L uo ci o 4.4.

a 0 C3 0 .0 m 0 U U 0-P S..

9-wu

00 u =M 0 l t *i C)0 a .0' 5- eu '0 00 .0 .0 0o 0 So ., ,C E. CC 

### cm

-4.o Cn 4)V 14 c a- 4C-

.. 0 ;l P ci 0 i ral mw l ! 4 ...*t, 'n o

•~e ur, o i=):1 ( 

## ~ .



## ~ a ial 0 - .0 m

- M W- 7. ° a CI.

0 CCl d dO 'a 0 es C
C) 044 c Ca CC~X 2:.~ 0.0 

## ~ co
-0 :zPE 0 CS. * C -g -- -=:3 A94 0' 1"4 04 C~ ) *C,.4 

### to 0,0 

## ~ 5-. " W19 w30 COO ' 9 -c .0

0,05 020 d A0

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## 10903 0 eq'

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v w' 

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u. 0Cd= i 4)l -0 5= d. 0 C~ Is CC 6 wCC 0 40 C03 90 .4 aC C5 = Cl 5--

CO o" .

C.0 o~o Its,.= 5-0 1- - 4 44-- 4 44o L) 0
C C 0 0 4 4' 0-

o 0 0 S- iu) 41 t4.0 4- 4 4 44 1 -- 4 6 -4 - -4.) 4- -4 .4 4 44 44 4 44 4-3 C 4J ( tn 4 4-4 4- 14 - tn I 4 c Cn 0 s. 41=0 L 43 4%0 c *. Cd = tn 4J40 -"C C J -U n c. tn' tn 0 04J93~ .0 Vo 0C u / 43 C = .* 3; * 0- = w) tn) W- 04/ C ds C CA 435-t 0.4. cu C U0 (a 0 C -3 4 4.0 W+) =0 wi-4.-1 4-00 C= .4; 43 434a 4 4 43 tn 3 04 -'.rs C5- 4 C .C 4 43a J C 4C r *- C- -s-t tn) ' C i - U L.5- CU) 5.0 .055.. -C 5-... 0 00 04/2 0)-0 004-' 4. 4b- C) 4 4J 4343 4 _ 4 = - 5. 41 0409" 04- M 0-19- 0-4 04 4' 43- V) -- - .4 tn i i)

### 10904 RULES AND REGULATIONS

.0 in .0 u0c *0 cd U oC -443 .Cd

4- C O 43 0

.0-
c .

## OJ

W-C

c0 0...; 0 ) .0 .0.0 .0 .0 .0 0 C.)CC) O P.. 00) .0 .0 0~ .3 0 .0 .0 GE 43 GE 0 0) 43 43 43 0 to 0 43 0 43 Cd) S~ 3.1 0 4-~ 0 3.. 0 5.. 43

- 43 0 0 P0 GE 0 0) 0 5- 0 0. 0 - ~., 0. ~ GE C)

- 0 ~ .13 C.)

to u 0) Ulu 0

031 00
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0.-

43 ci

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-4 -4 -4 I-. - -4 -4 -4 -4 -4 -4 -4 -4 -4 -4 -4 -4 -4 -4 *.~ -4 -4 -4 -4 -4 -4
-4 -4 -4 -4 -4 -4
0.0 en rd 4 42 . s- In Q0 43 *,a 0 5)~- c 43 0 -4 43 as 4 C,4 G - 43 ba to r- 0 Cal C) C

- 0S

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Cal 

### Cd c t - Cl. COD am

I0
a 4d 042 43 " 

### La

- 

## ~0
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### V2 a Cd

p C 4'041 COl Ci) a) .0 0= .0

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s01 40

s-t '- a- '.
'- 

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a 4.0a 0

.0 a)

3 00 4 "

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### Co 433 mcd' da4)

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430 I0

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C

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0 c

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C
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a) 43 

## 2

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### 01 v - a) . 4 o a t

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01-

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a

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P4

### RULES AND REGULATIONS 

### Subpart BBB-Puerto Rico 

## §52.2720 Identification ofplan.

(a) Title ofplan: "Clean AirforPuerto Rico." (b) Theplanwas submitted onJanuary 31,1972. 

### § 52.2721 Classificationofregions.

ThePuerto Rico plan was evaluated on thebasis ofthe following 

### ctsifications: Pollutant Air quality 

### I Photochelnlcal

control region Particulate Sulfur Nlitrogen Carbon oxidants matter oxides dioxide 

### Ianoxide (hydrocarbons) Puerto Rico IA IA III III III § 52.2722 Approval status.

The Administrator approves Puerto Rico's plan for the attainment and maintenanceofthenational standards. 

### § 52.2723 Attainment datesfornationalstandards.

The following table presents the latest dates by which the national standards are to be attained. These dates reflect the information presented in Puerto Rico's implementation plan. Pollutant Air quality articulate ufur l tc ical

control region .- ratter L : xides INitrogenI Carbon j oXidants ?ri- Secon- Pri- LSen- 'dioxide 

### IIrozldc J(hydrocarbons)

_ _r _dary iary .dary


## _ I 

### Puerto Rico prilA Apri April a a 

# I ' 975 

## _1975 1975 1975 a. Airqualitylevelspresentlybelowsecondary standards. 

### Subpart CCC-U.S. Virgin Islands § 52.2770 Identification ofplan.

(a) Title of plan: "AirQuality ControlImplementation Plan for the U.S.'Virgin Islands." (b) Theplanwasofficiallysubmitted onJanuary 31,1972. (c) 

### Supplemental information was submitted on Aprl 26, 1972, by the Division ofEnvironmental Health,U.S. VirginIslandsDepartment ofHealth. 

## §52.2771 Classification ofregions.

The U.S. Virgin Islands plan was evaluated on the ba is of the following classifications: Pollutant Air quality Photochenjcal

control region Particulate Sulfur litrogen Carbon oxidafhts 

# f matter oxides dioxide ronoxide (hydrocarbons) U. S. Virgin Islands TA IA III III lI 

### § 52.2772 Approval status.

With the exceptions set forth in this subpart., the Administrator approves the U.S. VirginIslands plan for attainment andmaintenance ofthenational standards. §52.2773 General requirements.

(a) The requirements of §51.10(e) of this chapter are not met since the plan doesnotprovideforpublicavailabilityofemissiondata. § 52.2774 Legal authority.

(a) Therequirements of §51.11(a) (6) of this chapter are not met since release of emission data to the public might be precluded by section 213, title 12 of the Virgin Islands Code,incertaincircumstances. § 52.2775 Reviewofnewsources andmodifications.

(a) The requirements of §51.18(c) of this chapter are not met since the plan doesnotprovide ameans ofdisapproving construction ormodiflcation ofstationary sources ifsaid construction or modification will interfere with attainment or maintenanceofanational standard.
FEDERAL REGISTER, VOL 37, NO. 105-WEDNESDAY, MAY 31, 1972 

## 1095

## 10906

§52.2822 Approval status. The Administrator approves American Samoa's plan for the attainment and maintenance ofthenationalstandards. 

### §52.2823 Attainment datesfornationalstandards.

The following table presents the latest dates by which the national standards are to be attained. These dates reflect the information presented in American Samoa's plan.

Air quality particulate u 

### PolIutat Piotochemical 

### control region V.4.atter 1JSlurIPooceia rr . oxides Nitrogen Carbon oxidants Pri- ISecon- ;Pri- Secon' dioxide monoxide (hydrocarbons) IryI I arr American Samoa Ia Ia a a .a a a a.Air qualitylevelspresentlybelowsecondary standards. [PRDoc.72-8308 Filed 5-30-72;10:04 am]

FEDERAL REGISTER, VOL 37, NO. 105-WEDNESDAY, MAY 31, 1972 

### RULES AND REGULATIONS § 52.2776 Attainment 

### dates fornationalstandards.



### The following table presents the latest dates by which the national standards are to be attained. These dates reflect information presented in the U.S. Virgin Islandsplan. Pollutant Air quality Particulatej Sulfur I

control'region matter I oxides 4Nitroger Cabon ?hotochemical Pri- Secn-IFrI- secon- dioxide monoxide oxidants marl dary 

### Imary) da 

# IIy Wrocarbons U.S. Virgin islands Jan. Jan. Jan. Jan. 

### a a a 1975 .1975 1975 1975 a. Airqualitylevelspresentlybelow secondarystandards. 

### Subpart DDD-American Samoa §52.2820 Identificationofplan. 

### (a) Title of plan: "The Territory of American Samoa Air Pollution Control Implementation Plan." (b) Theplanwasofficiallysubmitted onJanuary27,1972. (c) Supplemental information was submitted on March 9 and March 23, 1972, by the American Samoa Environmental Quality Commission. §52.2821 Classification of regions.



### The American Samoa plan was evaluated on the basis of the following classifications: