Senate .A1M'Nl'IM'Tit 

Requires 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 to all nearby States of the identity of such sources. 

Any State or political f!Ubdivision may petition the Administrator for a. finding that a major stationary source in another state 

emits pollutants which would adversely affect the air quality in 

the petitioning State. The Administrator must make such a finding or dismiss the petition within 60 days. If a finding of violation is made, the Administrator shall proceed to abate the pollution in the host State as a violation of that State's Implementation 

Plan. 

00'11./erence agree'!Mnt 

The House concurs in the Senate amendment with the following 

amendments: (1) delete the requirement that a failure by the Administrator to act on a petition by a State to make a finding that any inajor 

source would. emit a pollutant in violation of this {lrovision, or to deny 

such petition in the re·quired time period shall be deemed to be the 

making of such a finding; (2) delete reference to levels ".in excess of 

the nati~nal air quality standards" as a circumstance under which one 

State must notify another of any new source subject to significant deterioration requirements which may affect air polution levels in the 

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 that a delayed compliance order ·would be available 

for a. source unahle to comply with the requirements of this provision 

after 3 years. 

CONFLICT OF INTEJUlST (STATE BOARDS) 

HOWJe bill 

Section 319 requires each State plan to require financial disclosure 

and to 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 in the House provision as modified to require 

only that, within 1 year after enactment, State Implementation Plans 

shall require that: (1) any board or body with permit issuance or enforcement authority under the Clean Air Act shall have a 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.ard or body,· and heads of executive agencies with similar powers, 

shall disclose any potential conflicts of interest. It is the 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 if it, so chooses. 

PUBLIC NOTIFICATION 

BOUile bill 

No provision. 

Senate a'IMnd'!Mnt 

Within 90 days of the enactment of the act the administrator must 

initiate a program which will provide for public notification of potential 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 of air pollution levels exceeding primary standards and to educate the public as to the hazards of such 

levels and measures which can be 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 for a 2-year study by the Administrator, in cooperation 

with ·the National Academy of Sciences, and an interagency task force 

on the effects of various substances and activities on the stratospheric 

ozone layer. Then E·P A may promul~te re~lations to protect the 

stratospheric ozone layer if the Administrator finds that public health 

or welfare may reasonably be anticipated to be endangered. Regulations must take into consideration feasibility and costs of contro[ 

Senate a'!MM'!Mnt 

Includes research studies as follows: EPA is to 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 committee to 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. the N 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 in the Senate research provision, with the dates 

adjusted to conform to the date of final passage. Thus the studies by