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18
practicable in a statement on an individual action.
It ensures consideration of cumulative impacts that
might be slighted in a case-by-case analysis. And
it avoids duplicative reconsideration of basic
The program statement can, of
policy questions.
course, be supplemented or updated as necessary
--
to account for changes in circumstances or public
policy and to measure cumulative impacts over time.
A program statement will not satisfy the require-.
ments-of-Section 102, however, if it is superficial
or limited to generalities: Where all sionificant
issues cannot. be anticipated.or adequately--treated
in connection with the program as a whole,.statements of more limited scope will be necessary on
_ Subsequent. individual actions in order to complete
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formulating an appropriate definition of the
scope of the project that is the subject of
the statement.
In many cases, broad program
statements will be appropriate, assessing
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the environmental effects of a number of
__dindividual actions.on a given geographical
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area, or thé overall impact*of @ large-scale - =
program or chain of contemplated projects, or
the environmental implications of research
activities that have reached a stage of
investment or commitment to implementation
likely to restrict later alternatives.
Prepara-
tion of program statements in these cases should
be in addition to preparation of subsequent state.
ments on major individual actions wherever such
actions have significant environmental impacts
that were not fully evaluated in the program
statement.
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