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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 drafts comprehensive, NEPA-compliant EIS documents reflecting the current legal landscape—including the Fiscal Responsibility Act of 2023 amendments and the 2025 rescission of CEQ's implementing regulations. It produces structured drafts covering every required EIS section, from purpose and need through environmental consequences and mitigation, anchored on the lead agency's own NEPA procedures.

Drafting an Environmental Impact Statement is one of the most time-intensive tasks in federal environmental practice. With the 2025 rescission of CEQ's NEPA regulations and the 2023 statutory amendments introducing new page limits and deadlines, practitioners must navigate a fundamentally changed regulatory landscape while producing comprehensive, multi-section documents under tight constraints.

CaseMark's AI-powered EIS skill automates the structural drafting of NEPA-compliant Environmental Impact Statements, incorporating the latest statutory requirements and anchoring analysis on lead-agency procedures. It generates all required sections—purpose and need, alternatives, affected environment, consequences, and mitigation—in a fraction of the time, freeing environmental professionals to focus on technical substance and stakeholder engagement.

How it works

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

  2. 2. AI analyzes inputs against current NEPA statutory requirements and drafts all EIS sections

  3. 3. Review the structured EIS draft, refine alternatives and mitigation measures

  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

  • Proposed Action & Alternatives Analysis

  • Affected Environment

  • Environmental Consequences by Resource Category

  • Mitigation Measures & Monitoring Plan

  • Cumulative Impacts Assessment

  • Public Involvement & Agency Coordination Summary

  • List of Preparers & References

  • Statutory Compliance Checklist (Page Limits & Deadlines)

What it handles

  • Purpose-and-need statements aligned with lead-agency NEPA procedures

  • Comprehensive alternatives analysis with no-action baseline

  • Affected environment and environmental consequences across all resource categories

  • Mitigation measures and monitoring commitments

  • Statutory page-limit and deadline compliance tracking under § 4336a

  • Public involvement and agency coordination framework

Required documents

  • Project Description & Proposed Action

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

    .pdf, .docx

  • Environmental Studies & Baseline Data

    Environmental surveys, resource inventories, technical studies, and baseline conditions data for the project area

    .pdf, .docx, .xlsx

  • Lead Agency NEPA Procedures

    The lead agency's current NEPA implementing procedures, regulations, or orders that govern EIS preparation

    .pdf, .docx

Supporting documents

  • Scoping Comments & Public Input

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

    .pdf, .docx

  • Prior NEPA Documents

    Related EAs, EISs, categorical exclusions, or programmatic environmental documents for the project or region

    .pdf, .docx

  • Permit Applications & Regulatory Filings

    Clean Water Act Section 404 permits, ESA Section 7 consultations, NHPA Section 106 reviews, or other regulatory filings

    .pdf, .docx

  • Mitigation Plans & Agreements

    Existing mitigation commitments, MOUs, or compensatory mitigation plans related to the proposed action

    .pdf, .docx

Why teams use it

Reduces initial EIS drafting from weeks to minutes while maintaining statutory compliance

Automatically structures content within § 4336a page limits and tracks deadline requirements

Adapts to any federal lead agency's NEPA implementing procedures for accurate, agency-specific output

Ensures comprehensive resource-category coverage so no required analysis area is overlooked

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. It anchors analysis on the NEPA statute as amended by the Fiscal Responsibility Act of 2023 and the lead agency's own implementing procedures, which now control.

How does CaseMark handle the statutory page limits?

CaseMark structures the EIS to comply with the 150-page limit (or 300 pages for actions of extraordinary complexity) mandated by § 4336a. Citations and appendices are excluded from the count, and the tool tracks page usage throughout the draft.

Can I use this for any federal lead agency?

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

Does the tool generate the alternatives analysis?

CaseMark drafts a comprehensive alternatives analysis including the no-action alternative, the proposed action, and reasonable alternatives. It compares environmental consequences across alternatives and identifies the environmentally preferable option based on the data you provide.

How long does it take to generate a draft EIS?

CaseMark typically produces a complete structured EIS draft in approximately 15 minutes. This replaces weeks of initial drafting effort, allowing your team to focus on substantive review, stakeholder engagement, and technical refinement.

Is the output ready to file with the lead agency?

CaseMark produces a professional, structured draft that follows current statutory requirements and agency formatting conventions. However, all EIS documents should be reviewed by qualified environmental professionals and legal counsel before filing with the lead agency.

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