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actions abroad, many of the calculation methodologies and resources are still applicable. In
addition, many of the references identified do address actions abroad and can be consulted for
further information.
1.1 Regulatory Context
Air quality assessments for proposed Federal actions may be necessary for compliance with the
requirements of the National Environmental Policy Act, the Clean Air Act, and other
environment-related regulations and directives. There are Federal regulations and orders that
establish air quality requirements applicable to both airports and air bases, as well as U.S.
Department of Transportation (DOT)/FAA- or U.S. Department of Defense (DOD)/USAFspecific
regulations and orders that cover aspects of air quality at airports or air bases,
respectively. DOT and FAA orders can be obtained from the DOT Warehouse (Reference 56).
DOD and USAF documents can be obtained from the National Technical Information Service
(NTIS) (Reference 31). In addition to Federal requirements, many states and/or local areas have
air quality requirements that may address airports and air bases. Relevant general, DOT/FAAspecific,
and DOD/USAF-specific Federal requirements and documents are summarized below,
along with a brief discussion of possible state and/or local requirements.
1.1.1 Federal Requirements and Documents- General
National Environmental Policy Act of 1969 (NEPA) - NEPA and its amendments, establish a
broad national policy to protect the quality of the human environment and provide for the
establishment of a Council on Environmental Quality. The act provides polices and goals to
ensure that environmental considerations are given careful attention and appropriate weight in all
decisions of the Federal Government. The NEPA environmental review process addresses
impacts on the “natural world,” such as air and water quality. It also addresses impacts on the
human environment, such as noise, induced socioeconomic impacts, and land uses that result
from Federal actions. It should reflect a thorough review of all relevant environmental factors,
utilizing a systematic, interdisciplinary approach. Federal actions potentially subject to NEPA
include grants, loans, contracts, leases, construction, research, rulemaking and regulatory actions,
certifications, licensing, and permitting.
NEPA encourages and facilitates public involvement in the decisions by the Federal Government
which affect the quality of the human environment. Federal agencies must assess and disclose
the potential environmental impacts of proposed Federal actions.
2
NEPA requires all agencies of the Federal Government to:
I. Utilize a systematic, interdisciplinary approach in planning and decision-making that will
ensure the integrated use of natural and social sciences,
II. Identify and develop methods and procedures in consultation with CEQ to ensure that
environmental amenities and values may be given appropriate consideration in decisionmaking,
use ecological and scientific information, disclose information to public and
respond to public comments, and
III. In every recommendation or report on an action that affects the quality of the human
environment include a detailed statement on
A. the environmental impact of the proposed action,
B. any adverse environmental effects that cannot be avoided should the proposal be
implemented,
C. alternatives to the proposed action,
D. the relationship between local short-term uses of man’s environment and the
maintenance and enhancement of long-term productivity, and
E. any irreversible and irretrievable commitments of resources should the proposed
action be implemented.
Council on Environmental Quality (CEQ) Regulations for Implementing the Procedural
Provisions of the NEPA - The CEQ regulations implement the procedural provisions of NEPA.
In general, the CEQ regulations require a Federal agency to evaluate the potential environmental
effects of a major action prior to its implementation and notify and involve the public in the
agency’s decision-making process. The regulations emphasize the importance of integrating the
NEPA process into early project planning, and of consulting with the appropriate Federal, State,
and local agencies early in the proceeding. The regulations also identify and describe the
appropriate environmental documents (e.g., Environmental Assessment, Finding of No
Significant Impact, Environmental Impact Statement) that serve to document compliance with
NEPA requirements.
Executive Orders - There are several Executive Orders relating to NEPA that are general in
nature, but should be consulted as they may affect an action’s impact analysis. The following are
　
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