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The Environmental Protection Agency is authorized to grant fellowship awards under the following statutes:

(a) Section 103(b)(6) of the Clean Air Act as amended (42 U.S.C. 1857b(b)(6)).

(b) Sections 104(b)(5) and 104(g)(3)(B) of the Federal Water Pollution Control Act, as amended (33 U.S.C. 1254(b)(5) and 1254(g)(3)(B)).

§ 46.103 Objectives.

Fellowships awarded under this part are intended to encourage and promote the specialized training of indi

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justified by needs related to the purpose of the fellowship.

(d) Special fellows may receive not more than $3,600 total annual amount from EPA for full-time attendance payable on a pro-rata monthly basis.

§ 46.115 Eligibility.

All applicants for fellowships under this part must be (a) citizens of the United States, its territories, or possessions, or lawfully admitted to the United States for permanent residence, and (b) accepted by an accredited educational institution for full or part-time enrollment for academic credit in an educational program which directly relates to pollution abatement and control. Applicants for agency fellowships must be present or prospective employees of a regional, State, or local environmental pollution control or regulatory agency. Present employees must be recommended for a fellowship by their employing agency. Priority in award of fellowships to prospective agency employees will be given to those applicants who provide evidence that they have explored, in direct agency contact, opportunities for agency employment. Such applicants are encouraged to obtain written appraisal of their employment potential and probability of actual employment assuming successful completion of the training.

§ 46.120 Application requirements.

All applications for EPA fellowships shall be submitted to the Grants Administration Division, Environmental Protection Agency, Washington, D.C. 20460, upon such forms as the Administrator shall prescribe and shall include copies of transcripts of undergraduate and graduate courses, as appropriate. The applicant must arrange for the submission of supporting documents which substantiate his eligibility under § 46.115. In addition, the applicant shall submit such further information as may be required. Instructions for filing are contained in the application kit.

§ 46.122 Evaluation of application.

Periodically, fellowship applications will be evaluated for program relevance, and will compete for available

funds according to priorities established by EPA. Evaluations shall be conducted by EPA staff, with advisory assistance as appropriate. Consideration will be given to the following criteria:

(a) Appropriateness of the fellow's proposed course of study to the objectives and mission of the Agency.

(b) Evaluation of the applicant in terms of his potential for study, as evidenced by his academic record, letters of reference, training plans, and other available information.

§ 46.135 Award and duration of fellowship.

Notification of approval of a fellowship application shall be by the transmittal of the fellowship agreement for execution by the applicant pursuant to § 46.140. Notification of disapproval shall be prompt and in writing. Disapproval of an application shall not preclude reapplication. Fellowships will not exceed 1 year.

§ 46.136 Initiation of studies.

Study must be initiated pursuant to an approved fellowship within 6 months following the date of the award notice or the fellowship will be terminated.

§ 46.140 Fellowship agreement.

(a) The fellowship agreement is the written agreement, and amendments thereto, between EPA and a fellowship applicant in which the terms and conditions governing the fellowship are stated and agreed to by both parties.

(b) Upon approval of a fellowship for award, the fellowship agreement will be transmitted by certified mail (return receipt requested) to the applicant for execution. The fellowship agreement must be executed by the applicant and returned to the Grants Officer within 3 weeks after receipt, or within any extension of such time that may be permitted by the Grants Officer. The fellowship shall constitute an obligation of Federal funds in the amount and for the purposes stated in the fellowship instrument only upon execution of the fellowship agreement by the parties thereto. No costs may be incurred prior to the execution of

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mention of trade names or commercial products constitute endorsement or recommendation for use.

§ 46.155 Deviations.

Procedures of § 30.1000 of the EPA general grant regulations of this chapter be applicable to fellowships.

[38 FR 16061, June 20, 1973, as amended at 40 FR 20083, May 8, 1975]

§ 46.165 Termination.

(a) Termination of studies by the fellow. A fellow must notify EPA in writing when he terminates or changes his status under the fellowship agreement. Studies supported by an EPA fellowship may be terminated only for good cause. If the Grants Officer finds that a fellow has terminated his studies without good cause, then he shall annul fellowship and all EPA fellowship funds previously paid to the fellow shall be payable to the United States as final settlement. If the Grants Officer finds that there is good cause for the termination of studies, he shall enter into a termination agreement effective with the date of termination of studies by the fellow.

(b) Termination by EPA. The Grants Officer may terminate the fellowship provided that a termination action may not be taken unless the fellow has received written notice of the basis for the proposed action and has been afforded an opportunity to confer with appropriate EPA officials concerning the proposed action. Any termination action may be appealed in accordance with the Disputes Article of the EPA General Grant Conditions (Appendix A to Subchapter B of this title).

SUBCHAPTER C-AIR PROGRAMS

PART 50-NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS

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50.4 National primary ambient air quality standards for sulfur oxides (sulfur dioxide).

50.5 National secondary ambient air quality standards for sulfur oxides (sulfur dioxide).

50.6 National primary ambient air quality standards for particulate matter. 50.7 National secondary ambient air quality standards for particulate matter. 50.8 National primary and secondary ambient air quality standards for carbon monoxide.

50.9 National primary and secondary ambient air quality standards for ozone. 50.10 [Reserved]

50.11 National primary and secondary ambient air quality standard for nitrogen dioxide.

50.12 National primary and secondary ambient air quality standards for lead. APPENDIX A-REFERENCE METHOD FOR THE DETERMINATION OF SULFUR DIOXIDE IN THE ATMOSPHERE (PARAROSANILINE METHOD)

APPENDIX B-REFERENCE METHOD FOR THE
DETERMINATION OF SUSPENDED PARTICU-
LATE MATTER IN THE ATMOSPHERE (HIGH-
VOLUME METHOD)
APPENDIX C-MEASUREMENT PRINCIPLE AND
CALIBRATION PROCEDURE FOR THE MEA-
SUREMENT OF CARBON MONOXIDE IN THE
ATMOSPHERE (NON-DISPERSIVE INFRARED
PHOTOMETRY)

APPENDIX D-MEASUREMENT PRINCIPLE AND

CALIBRATION PROCEDURE FOR THE MEASUREMENT OF OZONE IN THE ATMOSPHERE APPENDIX E-REFERENCE METHOD FOR DETERMINATION OF HYDROCARBONS CORRECTED FOR METHANE APPENDIX F-MEASUREMENT PRINCIPLE AND CALIBRATION PROCEDURE FOR THE MEASUREMENT OF NITROGEN DIOXIDE IN THE ATMOSPHERE (GAS PHASE CHEMILUMINESCENCE)

APPENDIX G-REFERENCE METHOD FOR THE DETERMINATION OF LEAD IN SUSPENDED PARTICULATE MATTER COLLECTED AMBIENT AIR

FROM

APPENDIX H-INTERPRETATION OF THE NATIONAL AMBIENT AIR QUALITY STANDARDS FOR OZONE

AUTHORITY: Sec. 4, Pub. L. 91-604, 84 Stat. 1679 (42 U.S.C. 1857c-4).

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(a) As used in this part, all terms not defined herein shall have the meaning given them by the Act.

(b) "Act" means the Clean Air Act, as amended (42 U.S.C. 1857-18571, as amended by Pub. L. 91-604).

(c) "Agency" means the Environmental Protection Agency.

(d) "Administrator" means the Administrator of the Environmental Protection Agency.

(e) "Ambient air" means that portion of the atmosphere, external to buildings, to which the general public has access.

a

(f) "Reference method" means method of sampling and analyzing the ambient air for an air pollutant that is specified as a reference method in an appendix to this part, or a method that has been designated as a reference method in accordance with Part 53 of this chapter; it does not include a method for which a reference method designation has been cancelled in accordance with § 53.11 or § 53.16 of this chapter.

(g) "Equivalent method" means a method of sampling and analyzing the ambient air for an air pollutant that has been designated as an equivalent method in accordance with Part 53 of this chapter; it does not include a method for which an equivalent method designation has been cancelled in accordance with § 53.11 or § 53.16 of this chapter.

(h) "Traceable" means that a local standard has been compared and certified either directly or via not more than one intermediate standard, to a primary standard such as a National Bureau of Standards Standard Reference Material (NBS SRM), or a USEPA/NBS-approved Certified Reference Material (CRM).

[36 FR 22384, Nov. 25, 1971, as amended at 41 FR 11253, Mar. 17, 1976; 48 FR 2529, Jan. 20, 1983]

§ 50.2 Scope.

(a) National primary and secondary ambient air quality standards under section 109 of the Act are set forth in this part.

(b) National primary ambient air quality standards define levels of air quality which the Administrator judges are necessary, with an adequate margin of safety, to protect the public health. National secondary ambient air quality standards define levels of air quality which the Administrator judges necessary to protect the public welfare from any known or anticipated adverse effects of a pollutant. Such standards are subject to revision, and additional primary and secondary standards may be promulgated as the Administrator deems necessary to protect the public health and welfare.

(c) The promulgation of national primary and secondary ambient air quality standards shall not be considered in any manner to allow significant deterioration of existing air quality in any portion of any State.

(d) The proposal, promulgation, or revision of national primary and secondary ambient air quality standards shall not prohibit any State from establishing ambient air quality standards for that State or any portion thereof which are more stringent than the national standards.

§ 50.3 Reference conditions.

All measurements of air quality are corrected to a reference temperature of 25° C. and to a reference pressure of 760 millimeters of mercury (1,013.2 millibars).

§ 50.4 National primary ambient air quality standards for sulfur oxides (sulfur dioxide).

The national primary ambient air quality standards for sulfur oxides measured as sulfur dioxide by the reference method described in Appendix A to this part, or by an equivalent method, are:

(a) 80 micrograms per cubic meter (0.03 p.p.m.)-annual arithmetic mean.

(b) 365 micrograms per cubic meter (0.14 p.p.m.)-Maximum 24-hour concentration not to be exceeded more than once per year.

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