Senate .A1M'Nl'IM'TitRequires that each State Implementation Plan prohibit any stationary source within that State from emitting air pollutants which

would interfere with measures in another State to prevent significant deterioration, J.>revent attainment and maintenance of ambient air qua.lity standards m another State, or endanger the health or welfare of the citizens of another State. The following provisions implement the basic prohibition: Each State Implementation Plan must identify each new or existing source which may have the adverse air qualit:y impact on another State prohibited under this section, and n.otlce must be

given toall nearby States ofthe identity of such sources. Any State or political f!Ubdivision may petition the Administrator fora. finding thata major stationary source in another state emits pollutants which would adversely affect the air quality in

the petitioning State. The Administrator must make suchafindingor dismiss the petition within 60 days. Ifa finding of violationis made, the Administrator shall proceed to abate the pollution inthe host State asa violation of that State's Implementation Plan.00'11./erence agree'!Mnt The House concurs inthe Senate amendment with the following amendments: (1) delete the requirement thata failure bythe Administrator toactona petition bya State to make a finding that any inajor

source would .emita pollutant in violation ofthis {lrovision, orto deny

such petition inthe re·quired time period shall be deemed tobethe making of sucha finding; (2) delete reference to levels ".in excess of the **nati~nal** air quality standards" asa circumstance under which one State must notify another ofany new source subject to significant deterioration requirements which may affect air polution levels inthe dther State; (3) include references to visibility protection; (4) delete provision contained in Senate significant deterioration section providinB.: a mechanism for interstate abatement by the Administrator; and (5) provide thata delayed compliance order·would be available fora. source unahle to comply with the requirements ofthis provision after 3 years. CONFLICT OF INTEJUlST (STATE BOARDS) HOWJe billSection 319 requires each State plan to require financial disclosure

andto prohibit conflicts of interest by State air pollution board personnel with policymaking, regulatory, or enforcement responsibility. Senate bill

No comparable provision. 00'11./erence agree'!Mnt The Senate concurs inthe House provision as modified to require

only that, within 1year after enactment, State Implementation Plans shall require that: (1) any board or body with permit issuance orenforcement authority under the Clean Air Act shall havea majority of

members who do not have a significant financial interest in persons

subject to regulation

**~** such board or body; and (2) members of such

bo.ardor body,· and heads of executive agencies with similar powers, shall disclose any potential conflicts of interest. Itisthe responsibility of each State to determine the specific requirements to meet the general requirements of this section, and any State may adopt more stringent requirements ifit,so chooses. PUBLIC NOTIFICATION BOUile bill

No provision.Senate a'IMnd'!MntWithin 90 days ofthe enactment ofthe act the administrator must initiate a program which will provide for public notification ofpotential healtl_l hazards at major access points to metropolitan areas **whe~** primary ambient air quality **~a~dards**

**·**are not **~eing** met. **Not~­** ficatloil should cease once the Admrmstrator determmes the area IS meeting all primary standards. 0Mference agree'!Mnt States are required to include in their implementation plans effective measures to notify .the public ofair pollution levels exceeding primary standards and to educate the public astothe hazards of such levels and measures which canbe taken to improve air quality. The Administrator is authorized to make grants to States (and localities) to assist in making these notifications and to educate the public on transportation and other control measures needed to improve air quality. OZONE PROTECTION H O'Uile b't"lJ,Provides fora 2-year study by the Administrator, in cooperation with·the National Academy of Sciences, and an interagency task force

onthe effects of various substances and activities onthe stratospheric ozone layer. Then E·PA may **promul~te re~lations**  to protect the stratospheric ozone layer ifthe Administrator finds that public health or welfare may reasonably be anticipated tobe endangered. Regulations must take into consideration feasibility and costs of contro[ Senate a'!MM'!MntIncludes research studies as follows: EPA isto conduct a continuing study with an initial report to **Con~** October 1, 1977, and biennial reports thereafter. E-PA will C'hair an inter-agency committeeto coordinate research, including National Oceanic Atmospheric Administration, National Aeronautics and Space Administration, Federal Aviation Administration, Department of Agriculture, National Science Foundation; National Cancer Institute, and National Institute of Environmental Health Sciences. Recognizing that the National Academy of Sciences has **~I** ready **iss~ed** one report, in Sei?-

tember 1976, EPA shall contract With.theN at1onal Academy of Sciences to continue their study and report October 1, 1977. No regulation except "safety net" amendment to Toxic Substances Control Act. Oonference agree'!Mnt The House concurs inthe Senate research provision, with the dates adjusted to conform tothe date of final passage. Thus the studies by