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Environmental Impact Statement

Draft NEPA-Compliant EIS Documents in Minutes

15 minutes with CaseMark

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Environmental Impact Statement

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Environmental Impact Statement

Overview

CaseMark's Environmental Impact Statement skill automates the drafting of NEPA-compliant EIS documents for proposed federal actions. It reflects the current legal landscape—including the Fiscal Responsibility Act of 2023 amendments, the 2025 rescission of CEQ's implementing regulations, and lead-agency-specific NEPA procedures—to produce structured, thorough environmental analyses within statutory page limits and deadlines.

Drafting an Environmental Impact Statement is one of the most resource-intensive tasks in federal environmental practice. Teams spend months assembling purpose-and-need statements, alternatives analyses, and environmental consequences across dozens of resource categories—all while navigating a rapidly shifting regulatory landscape where CEQ regulations have been rescinded and lead-agency procedures now control.

CaseMark's AI-powered EIS skill transforms this process by ingesting your project documents, environmental data, and agency-specific procedures to generate a comprehensive, structured EIS draft. The output reflects current NEPA law—including the Fiscal Responsibility Act amendments, statutory page limits, and the post-CEQ regulatory framework—so your team can focus on substantive review rather than document assembly.

How it works

  1. 1. Upload your project documents, environmental data, and lead-agency NEPA procedures

  2. 2. AI analyzes inputs against current NEPA statutory requirements and agency-specific rules

  3. 3. Review the structured EIS draft with alternatives analysis, consequences, and mitigation

  4. 4. Export the final document in your preferred format (DOCX, PDF) within statutory page limits

What you get

  • Cover Sheet & Summary

  • Purpose and Need Statement

  • Alternatives Analysis (Including No-Action)

  • Affected Environment

  • Environmental Consequences

  • Mitigation Measures & Monitoring

  • Public Involvement & Agency Consultation

  • Statutory Compliance Checklist (Page Limits & Deadlines)

  • List of Preparers & References

What it handles

  • Purpose-and-need statements aligned with current NEPA statutory requirements

  • Comprehensive alternatives analysis with no-action baseline

  • Affected environment and environmental consequences across all resource categories

  • Mitigation measures and monitoring commitments

  • Public involvement and agency consultation documentation

  • Statutory page-limit and deadline compliance tracking

Required documents

  • Project Description & Proposed Action

    Detailed description of the proposed federal action, project scope, location, and objectives

    .pdf, .docx

  • Environmental Studies & Baseline Data

    Biological surveys, wetland delineations, air/water quality studies, cultural resource assessments, and other environmental baseline data

    .pdf, .docx, .xlsx

  • Lead Agency NEPA Procedures

    The lead agency's current NEPA implementing regulations or procedural guidance (e.g., 43 CFR Part 46, 23 CFR Part 771, FAA Order 1050.1F)

    .pdf, .docx

Supporting documents

  • Scoping Comments & Public Input

    Public and agency scoping comments, meeting summaries, and stakeholder correspondence

    .pdf, .docx

  • Previous NEPA Documents

    Prior EAs, EISs, categorical exclusions, or programmatic environmental documents for the project area

    .pdf, .docx

  • Cooperating Agency Input

    Technical analyses, data, or comments provided by cooperating agencies

    .pdf, .docx

  • Permit Applications & Regulatory Filings

    Related Section 404 permits, ESA consultations, Section 106 reviews, or other regulatory submissions

    .pdf, .docx

Why teams use it

Reduce EIS drafting time from weeks or months to a fraction of the effort with AI-assisted document generation

Ensure compliance with the latest NEPA statutory framework, including 2023 amendments and the post-CEQ regulatory environment

Maintain consistency across all required EIS sections—purpose and need, alternatives, affected environment, consequences, and mitigation

Track statutory page limits and deadlines automatically to avoid procedural challenges

Questions

Does this reflect the 2025 rescission of CEQ's NEPA regulations?

Yes. CaseMark's EIS skill is built around the April 11, 2025 rescission of 40 C.F.R. Parts 1500–1508 and anchors analysis on lead-agency NEPA implementing procedures, which now control federal environmental review.

How does CaseMark handle the Fiscal Responsibility Act of 2023 amendments?

CaseMark incorporates all NEPA amendments from Pub. L. 118-5, including the new statutory page limits (150 pages for standard EIS, 300 for extraordinary complexity), two-year completion deadlines, and updated content requirements under §§ 4336–4336c.

Can I specify which lead agency's procedures to apply?

Absolutely. CaseMark prompts you to upload or identify the lead agency's NEPA implementing procedures—whether USACE, FHWA, DOE, DOI, FAA, or others—and tailors the EIS structure and requirements accordingly.

Does the output stay within NEPA's statutory page limits?

Yes. CaseMark tracks the 150-page limit (or 300-page limit for extraordinarily complex actions) mandated by § 4336a, excluding citations and appendices, and flags content that approaches the threshold so you can prioritize.

Is the generated EIS ready to file with the lead agency?

CaseMark produces a comprehensive, professionally structured draft that covers all required EIS sections. However, the output should be reviewed by qualified NEPA practitioners and environmental professionals before final submission to ensure site-specific accuracy and agency-specific formatting requirements are met.

What types of environmental data should I upload?

CaseMark works best with biological surveys, wetland delineations, air and water quality studies, cultural resource assessments, traffic analyses, and any other baseline environmental data relevant to your proposed action. The more comprehensive your inputs, the more detailed the analysis.

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