NEPA Implementation
Project Development and Documentation Overview
      Federal Highway Administration 
        
       August 21, 1992 
      
      Table of Contents
      
      I. FEDERAL REQUIREMENTS 
      
       II. ENVIRONMENTAL 
        DOCUMENTS 
       
      History
        Early Coordination 
        Significance 
        Processing Options 
        - Environmental Impact Statements 
        - Categorical Exclusions 
        - Environmental Assessments 
        Mitigation and Enhancement 
        Reevaluation 
        Supplemental EIS
      
      III. PRACTICAL APPLICATIONS 
        - QUESTIONS AND ANSWERS
      
     I. FEDERAL REQUIREMENTS
      A. Legislation: 
      
      Federal-Aid Highways, 
        Title 23, United States Code, "Highways," National Environmental Policy 
        Act of 1969, as amended (NEPA), plus numerous other related statutes and 
        orders.
      B. Regulations: 
      
      "Regulations for Implementing 
        the Procedural Provisions of the National Environmental Policy Act" - 
        40 CFR Parts 1500-1508, November 29, 1978 (Council on Environmental Quality 
        - CEQ)
      "Environmental Impact 
        and Related Procedures" 23 CFR 771, August 28, 1987 (FHWA)
      C. Federal Highway 
        Administration (FHWA) Guidance: 
      
       "Guidance for Preparing 
        and Processing Environmental and Section 4(f) Documents" - FHWA Technical 
        Advisory T6640.8A, October 30, 1987
      D. Other Guidance: 
      
       "Questions and Answers 
        about NEPA Regulations," Council on Environmental Quality (CEQ) Memorandum, 
        March 16, 1981
      The RED BOOK - "Applying 
        the Section 404 Permit Process to Federal-Aid Highway Projects," FHWA 
        et al, September 1988
      (FHWA Environmental 
        Guidebook (primarily an internal document) - An all-inclusive compendium 
        of environmental guidance information which includes the following:
      "Section 4(f) Policy 
        Paper," October 5, 1987 as updated June 7, 1989
      "Transportation Enhancement 
        Activities," FHWA Memorandum, April 24, 1992
      "Cooperating Agencies," 
        FHWA Memorandum, March 19, 1992
      "Purpose and Need," 
        FHWA Memorandum, September 18, 1990
  		II.  ENVIRONMENTAL DOCUMENTS
      History
      The 1960's brought 
        about an increase in awareness and concern for the environment. In response 
        to this, Congress passed and signed into law, the National Environmental 
        Policy Act of 1969 (NEPA). This Act has three major goals that have influenced 
        the Federal Highway Administration (FHWA) and all Federal agencies: (1) 
        it sets national environmental policy; (2) it establishes a basis for 
        environmental impact statements (EISs); and (3) it created the CEQ. NEPA 
        requires that to the extent possible, policies, regulations and laws of 
        the Federal Government be interpreted and administered in accordance with 
        NEPA. It also requires Federal agencies to use an interdisciplinary approach 
        in planning and decisionmaking for actions that impact the environment. 
        (In FHWA, the interdisciplinary expertise is provided with review by the 
        Washington Headquarters and Regional Offices.) Finally, NEPA requires 
        the preparation of an EIS on all major Federal actions significantly affecting 
        the human environment.
      NEPA calls for an 
        examination and consideration of impacts of the proposed action on sensitive 
        resources when we are considering a transportation facility. These resources 
        include, but are not limited to, floodplains, wetlands, endangered species, 
        historic and archeological sites, parklands, air quality, wildlife habitat, 
        etc. There also are the transportation needs that need to be fulfilled. 
        Because of impacts to resources and needed transportation improvements, 
        we use a balanced decisionmaking process that considers a range of factors 
        of both impacts to the resources and the transportation needs. The decision 
        of how to balance these factors rests with FHWA.
      It is FHWA's policy 
        that all environmental protection and enhancement requirements, including 
        those set out in Section 4(f) of the Department of Transportation (DOT) 
        Act which protects historic sites and publicly owned public parks, recreation 
        areas, wildlife and waterfowl refuges, and 23 U.S.C. 109(h), which mandates 
        consideration of social and economic impacts to the human environment, 
        be completed as part of the NEPA process. Evidence of this compliance 
        must be contained in the appropriate documentation. Further, it is FHWA 
        policy that public involvement be an essential part of this process.
      As noted above, NEPA 
        called for the creation of the Council on Environmental Quality (CEQ). 
        The CEQ is an office within the Executive Office of the President and 
        has four main functions: (1) to develop environmental policies for the 
        nation; (2) to monitor environmental quality; (3) to prepare an annual 
        environmental quality report; and (4) to monitor Federal actions.
      In 1970, CEQ issued 
        guidelines for the preparation of environmental documents. The FHWA prepared 
        a policy directive in response to those guidelines as did some other Federal 
        agencies. For FHWA this regulation is "Environmental Impact and Related 
        Procedures," 23 CFR 771, effective November 28, 1987. The CEQ monitored 
        Federal environmental processing of all the agencies, and found that EISs 
        were too long with less important issues being discussed at great length, 
        that there ' was poor or no early coordination, and that the process led 
        to unnecessary delays caused by confusion over differing terminology and 
        procedures among Federal agencies. To remedy these problems, President 
        Carter issued Executive Order (EO) 11991 in May 1977. The key provision 
        of the EO was that CEQ could issue mandatory regulations, not just guidelines, 
        for implementing the provisions of NEPA consistently throughout the Federal 
        Government. The result was the CEQ Regulations for Implementing the Provisions 
        of the National Environmental Policy Act," 40 CFR Parts 1500-1508.
      The principal goals 
        of the CEQ regulations are to reduce paperwork and delays, and to produce 
        better environmental decisions. The regulations focus on four key areas: 
        (1) early coordination; (2) completing the environmental process; (3) 
        uniform processing options for all agencies; and (4) faster and better 
        processing.
      To improve early coordination, 
        the CEQ regulations introduced the concept of "lead agency" and "cooperating 
        agency." The lead agency is that Federal agency which is responsible for 
        the Federal action. The cooperating agencies are those with special expertise 
        (e.g., the Fish and Wildlife Service, the Department of the Interior) 
        or jurisdiction by law (e.g., the Army Corps of Engineers (COE) or the 
        Coast Guard (USCG) when a permit is necessary). The CEQ also instituted 
        a scoping process which was intended to get the lead and cooperating agencies 
        and other interested groups together early in the project development 
        process to determine the scope of the issues to be addressed, and identify 
        any important issues related to the proposed action. By properly using 
        the early coordination process, agencies could avoid conflicts later, 
        and could assure the full input from the various interests. Early coordination 
        continues to be emphasized in all transportation guidance and legislation. 
      
      In order to aid in 
        completing the process, CEQ introduced two specific formal decision documents: 
        (1) the Finding of No Significant Impact (FONSI) and (2) the Record of 
        Decision (ROD). These will be discussed in more detail later, but use 
        of these reflects CEQ's belief that the environmental document should 
        be a full-disclosure information document but that there still was a need 
        for a formal decision document.
      The CEQ regulations 
        also established uniform processing options for all Federal agencies. 
        These options are the categorical exclusion (CE), the EIS, and the environmental 
        assessment (EA).
      One key early decision 
        for FHWA is the type of document needed to satisfy the NEPA process and 
        thus advance a project. Remember, NEPA requires an EIS for major Federal 
        actions significantly affecting the human environment, and 23 U.S.C. 109(h) 
        requires consideration of adverse economic and social (as well as environmental) 
        impacts for Federal-aid highway projects. The key here is "significance," 
        and guidelines for determining significance will be described later. For 
        now it is important to understand that projects with clearly identified, 
        significant social, economic, or environmental impacts always require 
        an EIS.
      A second type of project 
        also emerges--those without significant impacts. These CE projects, under 
        certain circumstances, can be "categorically excluded" from having an 
        EIS prepared. A third grouping is those projects with uncertainty as to 
        whether there is a significant impact. In those cases, EAs are prepared 
        to determine if there will or will not be significant impacts associated 
        with a project. If there are no significant impacts, a Finding of No Significant 
        Impact (FONSI) is prepared. If the EA indicates there are significant 
        impacts, an EIS must be prepared.
      Early Coordination 
      
      Early coordination 
        with other agencies and the public is an essential part of the project 
        development process. This coordination can help you in determining the 
        appropriate level of documentation and developing the project purpose 
        and need discussion, as well as in identifying the NEPA and permit requirements 
        of other agencies, the range of alternatives, impacts to resources, possible 
        mitigation measures, and opportunities for environmental enhancement. 
        When you begin early coordination, be aware of three items: (1) cooperating 
        agencies, (2) the memorandum of understanding-with the USCG, and (3) the 
        memorandum of agreement with the COE. The agreements with the USCG and 
        COE were developed because of the large number of permits required from 
        these agencies. A Section 404 permit from the COE is required for any 
        dredge/fill operation in waters of the United States including jurisdictional 
        wetlands, and the USCG requires permits for crossings of navigable waters. 
        The central feature of these agreements is that, if we get the COE and 
        USCG involved in the process early, they can adopt FHWA's NEPA documentation 
        to fulfill the NEPA requirements for their permit action. As one approach 
        towards improving interagency coordination, the Red Book emphasizes the 
        merging of the common elements of the NEPA and Section 404 permit processes. 
        The Red Book has been adopted as policy by the DOT, EPA, and COE.
      The lead agency/cooperating 
        agency concept was introduced by CEQ to aid in early coordination and 
        faster and better processing. A lead agency is responsible for supervising 
        the preparation of the environmental documentation. Cooperating agencies 
        are those agencies specifically requested by the lead agency to assist 
        during the environmental process. CEQ's regulations require that those 
        Federal agencies with jurisdiction by law be requested to be cooperating 
        agencies for EAs and EISs. Examples include the COE where Section 404 permits 
        are involved, the USCG where a Section 9 permit is involved, the EPA for sole-source aquifers, and other Federal agencies 
        where a land transfer from that agency is needed. Also included as potential 
        cooperating agencies would be any other Federal agency with special expertise, 
        any State agency, local agency, or Indian tribe when Indian reservation 
        land is involved.
      Cooperating agencies 
        should be requested as early in the process as possible. The point here 
        is to get these agencies involved so they have real input early rather 
        than later where they are merely reacting to our proposals. Either the 
        State or FHWA can request cooperating agencies.
       If an agency with 
        jurisdiction by law declines a request to be a cooperating agency, notify 
        FHWA Headquarters, so that we can assist in resolving the problem.
      A cooperating agency 
        does not necessarily need to perform any analysis or provide any substantive 
        narrative for the document, but the expectations and responsibilities 
        of a cooperating agency should be clearly understood. When a cooperating 
        agency has jurisdiction by law, that agency's role should be acknowledged 
        in the environmental documentation. A cooperating agency, while not necessarily 
        agreeing with every word in the document, should be in a position (at 
        the end of the process) to state that the final document fulfills its 
        responsibilities under NEPA.
      Significance 
      
      To determine the appropriate 
        class of action and thereby the requisite level of documentation necessary 
        to comply with NEPA, it is essential to understand the term "significance." 
        The CEQ regulations (40 CFR 1508.27) state that two main points should 
        be considered in determining significance: context and intensity.
      Impacts can be considered 
        in the context of society as a whole, the affected region, or locality. 
        In the case of a site-specific action, significance would usually depend 
        on the effects in the locale rather than in the world as a whole. Both 
        short- and long-term effects are relevant.
      For example, filling 
        one acre of a one hundred-acre wetland probably could be considered not 
        significant, but filling one acre of a two-acre wetland may be considered, 
        under certain circumstances, a significant impact. The intensity is the 
        same, but the context is different.
      Factors to consider 
        regarding intensity or severity of impacts include: (1) impacts that may 
        be both beneficial and adverse; (2) the degree to which the proposed action 
        affects public health or safety; (3) unique characteristics of the geographical 
        area; (4) the degree to which the effects on the quality of the human 
        environment are likely to be highly controversial; (5) the degree to which 
        the possible effects on the human environment are highly uncertain or 
        involve unique or unknown risks; (6) the degree to which the action may 
        establish a precedent for future actions with significant effects; (7) 
        whether the action is related to other actions with individually insignificant 
        but cumulatively significant impacts; and (8) the degree to which the 
        action may adversely affect resources listed in or eligible for listing 
        in the National Register of Historic Places; (9) the degree to which the 
        action may adversely affect an endangered or threatened species or its 
        habitat; and (10) whether the action threatens a violation of Federal, 
        State, or local law or requirements imposed for the protection of the 
        environment.
      Processing Options 
        
      Environmental Impact 
        Statement
      When the proposed 
        action will have a significant impact on the environment, an EIS is required. 
        Less than 5 percent of all FHWA projects involve EISs, but these are the 
        projects which require the most time and effort to complete.
      As soon as a decision 
        has been reached to prepare an EIS, the FHWA division office should prepare 
        a Notice of Intent. Guidelines for preparation of these notices are given 
        in Technical Advisory T6640.8A. This notice which is published in the 
        Federal Register is a brief announcement that FHWA will be preparing an 
        EIS.
      Scoping is a formal 
        coordination process, required by CEQ, which determines the scope of issues 
        to be addressed and identifies the significant issues related to the proposed 
        action. It can be done by letter, phone or formal meeting. You should 
        assure that it occurs early and involves both affected agencies and interested 
        public, and is well-documented. The scoping and Notice of Intent requirements 
        reflect CEQ's concern for early coordination and faster and better processing. 
      
      Technical Advisory 
        T6640.8A provides guidance on what should be in the EIS. It provides the 
        required format and the type of information that should be developed in 
        the EIS. A brief summary of the major EIS sections follows:
      Project Purpose and 
        Need is one of the most important elements of project and needs to be 
        well-documented in the EIS. This discussion should be clear and specific, 
        and support the need for the project. For example, if there is a capacity 
        problem, it should be stated in this section and referenced in later traffic 
        discussions, not the other way around. Some of the common "needs" we see 
        in ElSs include: transportation demand, safety, legislative direction, 
        urban transportation plan consistency, modal interrelationships, system 
        linkage, and the condition of existing facility. Graphics and tables are 
        particularly helpful in clarifying the discussion.
      The Alternatives section 
        describes the reasonable alternatives to achieve the project's purpose 
        and need, how they were selected, and provides a clear basis for choice 
        among the options. In developing your alternatives, you must comply with 
        the requirements of 23 CFR 771.111(f), which states that projects must 
        connect logical termini, have independent utility, and not restrict consideration 
        of future transportation alternatives. Also, you may have examined some 
        alternatives early in the process but found them to be not reasonable 
        for further consideration. The Alternatives section should briefly explain 
        why these alternatives were rejected from further study.
      In the draft EIS stage, 
        all reasonable alternatives should be discussed at a comparable level 
        of detail. There is no requirement at this stage to have a "preferred" 
        alternative; however, if an official position has been taken on one of 
        the alternatives, this should be so stated in the document. Of course, 
        at this stage in the process, no final decision can be made.
      The "no-build" alternative 
        must always be included. In addition to fulfilling a requirement, discussion 
        of this alternative can serve two purposes. First, it may be a reasonable 
        alternative, especially where the impacts are high and the need is relatively 
        minor. More often, the no-build serves as a benchmark against which the 
        impacts of the other alternatives can be compared. As part of this alternative, 
        short-term minor reconstruction, such as safety upgrading and maintenance 
        projects, can be considered.
      Transportation System 
        Management must be included as an alternative or design option where applicable. 
        This can include high-occupancy vehicle lanes, ridesharing, signal synchronization, 
        and other actions. Also, where appropriate, mass transit options should 
        be considered.
      Graphics, should show 
        the location of the alternatives in relation to each other and the project 
        area. Alternative termini points and design features, such as the number 
        of lanes and location of interchanges, should also be shown.
      The Affected Environment 
        section is one area in EISs where there has been a tendency to include 
        too much information. These documents are for decision purposes and, as 
        such, descriptions should be no longer than needed to understand the area 
        and the impacts of the alternatives. The affected environment section 
        should discuss, commensurate with the importance of the impact, the existing 
        social, economic, and environmental setting. Also, it should identify 
        environmentally sensitive features. The use of graphics and/or photographs 
        for this purpose is especially effective.
      The Environmental 
        Consequences section describes the impacts of the alternatives to the 
        affected environment and documents the methodologies used in the evaluation. 
        This information will be used to form a basis for the comparison of alternatives. 
        One problem we have seen in this section is the use of generic statements 
        like, "all highway construction in this area will cause erosion which 
        adds to sediment loading in streams." That may be true enough, but it 
        does not help differentiate between the alternatives or show the relative 
        severity of the alternatives. For example, does one alternative cross 
        more streams than another? Are some streams more sensitive? Also, is this 
        erosion severe or minor and how do we quantify the impact? Here again, 
        you should consider context and intensity. This section of the document 
        should discuss both impacts and mitigation measures. It should be remembered 
        that mitigation must be considered for all impacts, regardless of significance. 
        Additional consideration should be given to using enhancement measures 
        to help better fit the project into the environment.
      A second area for 
        consideration is that of secondary and cumulative impacts. Secondary impacts 
        are those effects that are expected to be "caused" by the proposed action 
        but are later in time or are removed in distance, but are still reasonably 
        foreseeable. Cumulative impacts are those which result form the incremental 
        consequences of an action when added to other past and reasonably foreseeable 
        future actions.
      The EIS also has a 
        Comments and Coordination section where the scoping process, including 
        the results of any meetings which may have been held and any comments 
        received during preliminary coordination, should be summarized.
      Another section, the 
        List of Preparers, includes those primarily responsible for preparing 
        the EIS or background papers. This includes SHA personnel involved and 
        may include other State offices, consultants, and local people. The FHWA 
        division office representative should also be included. This list should 
        include the individual's name and qualifications including his/her expertise, 
        experience, and professional discipline.
      Between the draft 
        and final EIS, the SHA and FHWA division office consider and prepare responses 
        to all substantive comments received on the draft EIS, including those 
        from the public hearing. The final EIS must identify and describe the 
        preferred alternative and the basis for the decision, demonstrate compliance 
        to the extent possible with all applicable environmental laws and Executive 
        Orders, provide reasonable assurance that the requirements can be met, 
        include copies of comments received and responses (if comments are voluminous 
        they may be summarized), note where the EIS was changed in response to 
        comments, (this change should be referenced in the response), and any 
        other changes or corrections.
      The final EIS is usually 
        approved at the Regional Office level; however, prior concurrence by the 
        Washington Headquarters Office is required on certain types of projects 
        and under certain conditions (see 23 CFR 771.125(c)).
      A ROD must be issued 
        before any project approvals (e.g. for design, right-of way acquisition, 
        construction) can be given on the selected course of action. The ROD may 
        not be issued sooner than 30 days after the approved final EIS is distributed, 
        nor 90 days after the Draft EIS is circulated. It should: (1) state the 
        basis for the decision, (2) identify all the alternatives considered and 
        specify the "environmentally preferable alternative," (a thorough discussion 
        of the "environmentally preferred alternative" can be found in CEQ's "Questions 
        and Answers about the NEPA Regulations," Question #6), and (3) state whether 
        all practicable means to avoid or minimize environmental harm from the 
        alternative selected have been adopted and, if not, why they were not. 
      
      Categorical Exclusions 
      
      Actions that do not 
        individually or cumulatively have a significant social, economic, or environmental 
        effect are excluded from the requirement to prepare an EA or EIS. These 
        actions are processed as CEs. A specific list of CEs normally not requiring 
        NEPA documentation is set forth in 23 CFR 771.117(c). Other projects, 
        pursuant to 23 CFR 771.117(d), may also qualify as CEs if appropriately 
        documented. There are various approaches to documenting CE determinations 
        where required. For minor activities, programmatic approaches can reduce 
        the amount of paper generated while still assuring adequate program control. 
        More complex projects require more information in a formal submission 
        from the State so that the FHWA division office can conclude that the 
        project will not cause a significant environmental impact.
      Environmental Assessment 
      
      An EA is prepared 
        when there is uncertainty as to the significance of the impacts of the 
        project.
      The CEQ suggests that 
        EAs should be only 10 to 15 pages in length. It is often not possible 
        to stay within these page limits, especially if information related compliance 
        with other environmental requirements is included. It is, however, instructive 
        to understand CEQ's philosophy on the brevity of the EA. It should discuss 
        in detail only those areas where there is potential for a significant 
        impact. Although there is no specific format requirement, the FHWA Technical 
        Advisory 6640.8A provides a suggested format to be used for an EA. Briefly, 
        the subject areas to be addressed are: project description, need, alternatives 
        considered, impacts, and comments and coordination.
      The EA is subject 
        to FHWA approval before it is made available to the public as an FHWA 
        document. The document itself need not be circulated, but must be made 
        available for public inspection and comment. A notice of availability 
        must be sent to State and area wide clearinghouses and should be published 
        locally. Depending on FHWA-approved State procedures, a public hearing 
        may or may not be required. The availability period for an EA is usually 
        30 days.
      If, after completing 
        the process, it is determined that there are no significant impacts associated 
        with the project, a FONSI (the agency's statement of no significant impact) 
        is prepared. The FONSI includes the EA modified to reflect all applicable 
        comments and responses to those comments. No formal circulation is required, 
        however, the State clearinghouse must be notified of the availability 
        of the FONSI, and FHWA recommends that the public be notified in local 
        publications. A sample of the language used for a FONSI can be found in 
        Technical Advisory T6640.8A (page 9).
      If, at any time, a 
        significant impact is identified, an EIS must be prepared.
      Mitigation and Enhancement
      It has been FHWA's 
        policy that measures necessary to mitigate adverse impacts (both significant 
        and non-significant) be incorporated into the proposed action (23 CFR 
        771.105(d)). The CEQ regulations describe (40 CFR 1508.20) some of the 
        methods for mitigating impacts. They include: avoidance, minimizing impacts 
        by limiting the scope of the action, rehabilitating or restoring the affected 
        environment, and compensating for the impact by replacing or providing 
        substitute resources. Such measures would be eligible for Federal funding 
        if: (1) the impact for which the mitigation was proposed actually resulted 
        from the project and (2) the proposed mitigation represented a reasonable 
        public expenditure, considering, among other things, the extent to which 
        the proposed measures would assist in complying with a Federal statute, 
        Executive Order, or other Administration regulation or policy.
      The Environmental 
        Policy Statement (the EPS was first issued in 1990 and revised in 1994) called 
        for an expanded interpretation of these requirements, and specifically 
        itemized full and objective consideration to avoidance, innovative designs 
        to minimize harm, and identification of opportunities to contribute to 
        a healthier, more attractive environment through improved mitigation and 
        enhancement. The only restrictions that the EPS placed on funding environmental 
        enhancement activities were that such activities represent a reasonable 
        public expenditure, be in the best overall public interest, and be reasonable 
        related to an eligible highway project. (Please note that the environmental 
        enhancement described in the EPS should not be confused with the "transportation 
        enhancement" provision in the ISTEA legislation, which is a 10% funding 
        set-aside for ten specific types of enhancement activities. That program 
        should be considered as one element of our overall enhancement policy.) 
      
      It is the responsibility 
        of FHWA and the implementing agency to assure that the mitigation and 
        enhancement measures committed to in the environmental document, as well 
        as those contained in permits, are carried out. We encourage that a summary 
        of mitigation/enhancement commitments be included in the FONSI or ROD 
        and made available to appropriate project personnel.
      Reevaluation 
      
      The FHWA must assure 
        that the environmental documentation for the proposed action (CE, EA/FONSI, 
        EIS/ROD) is still valid, prior to proceeding with major project approvals 
        or authorizations. This is accomplished through a reevaluation, which 
        is an assessment of any changes which may have occurred in either the 
        project's concept or the affected environment, and a determination of 
        what effects these changes might have on the validity of the environmental 
        documentation. Informal consultation between FHWA and the State DOT may 
        be acceptable, with appropriate documentation (e.g. a note to the file). 
      
      In addition to this 
        requirement for all levels of environmental documentation, there is a 
        3- year validity period for EISs. If you have a Draft EIS, and an acceptable 
        Final EIS is not submitted to FHWA within 3 years from the date of the 
        draft EIS circulation, a written reevaluation of the Draft EIS shall be 
        prepared prior to submission of the Final EIS. This evaluation must demonstrate 
        that the information presented in the Draft EIS is an accurate analysis 
        of the anticipated project impacts. For projects with an approved Final 
        EIS, a written reevaluation is required before further approvals are given 
        if activities to advance the action, e.g., design, right-of-way, or construction, 
        have not occurred within any 3-year time period.
      Supplemental EIS 
        
      If the reevaluation 
        process described above reveals that there have been changes which result 
        in significant adverse impacts not identified in the approved document, 
        a new EIS or a Supplemental EIS (SEIS) must be prepared and circulated. 
      
      If changes are made 
        to the proposed actions and it is uncertain if a Supplemental EIS is required, 
        appropriate environmental studies or, if necessary, an EA to assess the 
        impacts of such changes must be developed.
      There is no required 
        format for a SEIS, but it must contain the reason for preparing a Supplement 
        and an evaluation of the changes and new impacts. Portions of the original 
        EIS which remain valid may be summarized. The SEIS is processed in the 
        same way as the original document, except that there is no requirement 
        for formal scoping.
      III. PRACTICAL APPLICATIONS - QUESTIONS AND ANSWERS
      Q. How should a project 
        that is on the CE list (23 CFR 771.117(d)), but has a significant impact, 
        be processed?
      A. Any project that 
        has a significant impact must be processed as an EIS.
      Q. If an EA indicates 
        that there will be a significant impact but that, with mitigation, the 
        impact may be reduced to less than significant levels, can a FONSI be 
        made rather than preparing an EIS?
      A. Mitigation measures 
        may be relied upon to make a FONSI as long as a commitment is made to 
        provide all mitigation needed to reduce impacts below the level of significance, 
        and the mitigation is made an integral part of the original proposal. 
      
      Q. In preparing an 
        EA, it became obvious that there was a significant impact. Should we go 
        ahead with the EA before preparing a draft EIS?
      A. No. As soon as 
        it has been determined that there is a significant impact, a Notice of 
        Intent should be prepared and the development of the draft EIS should 
        begin. Practically speaking, very few projects go from an EA to a draft 
        EIS, but rather the determination that there is a significant impact occurs 
        while the EA is being developed.
      Q. A certain project 
        requires a Section 404 permit (or Section 9 USCG permit). Should we request 
        that the COE (or CG) be a cooperating agency?
      A. Permitting agencies 
        such as the COE (or USCG) which have jurisdiction by law must be requested 
        to-be a cooperating agency for projects requiring an EIS. It is desirable 
        for them to be a cooperating agency for EA/FONSI projects. For CE projects, 
        early coordination should occur.
      Q. What do you do 
        when an agency with jurisdiction by law refuses a request to be a cooperating 
        agency for and EIS/ROD project?
      A. Notify the Washington 
        Headquarters (HEP-30) through normal channels. The CEQ regulations require 
        that CEQ be notified of such a refusal.
      Q. During the circulation 
        of a draft EIS, someone suggested that a totally new alternative be studied. 
        How should such a comment be handled?
      A. As with all comments 
        on a draft EIS, it must be considered and addressed. If the alternative 
        is not considered reasonable, a response discussing the rationale for 
        that determination should be included in the final EIS. If the alternative 
        is reasonable and totally new, not just a design variation of one presented 
        in the draft EIS, then a supplemental draft EIS discussing the alternative 
        must be prepared and circulated. The CEQ regulations (40 CFR 1502.14(a)) 
        require that the EIS "rigorously explore and objectively evaluate all 
        reasonable alternatives." See CEQ's "Questions and Answers About NEPA 
        Regulations," Question #29, for further information.
      Q. The FHWA was a 
        cooperating agency on an EIS prepared by another agency. The approved 
        final EIS adequately discusses all aspects of the project including some 
        highway work. Must FHWA do an EA or EIS to comply with NEPA in this case? 
      
      A. One advantage of 
        the cooperating agency concept is that the cooperating agency may adopt 
        another agency's environmental document to comply with NEPA. In this case, 
        a ROD should be prepared to document the basis for decision. The FHWA 
        need not recirculate the EIS. In the case of adopting another agency's 
        EA, a FONSI should be prepared to document the basis for the decision. 
      
      Q. What is the advantage 
        of getting the COE and/or the CG as a cooperating agency when a permit 
        is required?
      A. As noted above, 
        those agencies with jurisdiction by law (i.e., permitting agencies) must 
        be requested to be cooperating agencies. The FHWA has agreements with 
        these agencies which state that if we coordinate with these agencies early 
        and include in our environmental document the information they need for 
        permit processing, these agencies will ordinarily accept our environmental 
        documentation as satisfying NEPA for processing the permit. In addition, 
        we have an ongoing initiative to "merge" the common elements of the NEPA 
        and 404 processes. This is outlined in Chapter 11 of the "Red Book."
       Q. The State has 
        decided that it wants to implement an alternative which was adequately 
        evaluated and presented in the approved final EIS, but was not identified 
        as the preferred alternative. Must we prepare a new final EIS?
      A. No. The ROD is 
        the decision document and, as such, can be used to describe why this alternative 
        has now been selected for implementation.
      Q. What material should 
        be in an appendix rather than the body of the EIS?
      A. The body 
        of the EIS should be a succinct statement of all the information the decision maker 
        and public need to make the decision. The EIS must explain or summarize 
        methodologies of analysis and the conclusions of those analyses. Lengthy 
        technical discussions of modeling methodology, baseline studies, or other 
        technical work should go into the appendix.
      Q. How should comments 
        on a draft EIS be handled, especially if the project generated voluminous 
        comments?
      A. The final EIS must 
        contain responses to all substantive comments on the draft EIS. These 
        responses may result in changes in the document, but specific answers 
        to each significant comment should also be included. These specific responses 
        may be placed in an appendix. If the comments are especially voluminous, 
        summaries of the comments and responses will suffice.