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How it worksCapture evidence, coordinate review, and export with sources intact.→Free to tryTry our Phase I enginep1.opef.aiRun a real Phase I ESA workflow on p1 with structured intake and export-ready records.→How we fit inWhere OPEF sits in your permitting and compliance workflow.→PartnersIntegrations with compliance platforms and data providers.→
Solutions
Browse all solutions109 permitting domains across 14 regulatory categories.→12 domainsFederal Environmental ReviewNEPA and agency-specific environmental review workflows across all federal programs.→8 domainsSite Assessment & RemediationEnvironmental site assessments, contamination investigations, and regulatory cleanup frameworks.→9 domainsWater & WetlandsClean Water Act permits, wetland jurisdictional determinations, and water quality programs.→9 domainsSpecies & EcosystemsEndangered species consultation, take permits, biological assessments, and habitat conservation.→7 domainsAir Quality & ClimateClean Air Act permits, GHG accounting, noise analysis, and climate disclosure frameworks.→9 domainsEnergy & InfrastructureFERC licensing, renewable energy siting, pipeline safety, and nuclear facility review.→9 domainsCoastal & MaritimeCoastal zone management, offshore permitting, marine sanctuary protection, and maritime safety.→7 domainsCultural Resources & TribalNHPA Section 106 consultation, tribal government engagement, and historic preservation compliance.→9 domainsHazardous Materials & WasteRCRA permitting, CERCLA cleanup, hazardous waste compliance, and chemical risk management.→9 domainsLand Use & ConservationFederal land permits, conservation programs, and statutory use protections for parks and historic resources.→7 domainsAgriculture & ForestryUSDA conservation compliance, timber management, grazing permits, and invasive species programs.→4 domainsDrinking Water & Public HealthSafe Drinking Water Act compliance, underground injection, source water protection, and environmental justice.→5 domainsState Environmental ReviewState-level environmental review statutes including CEQA, SEPA, and state EIR equivalents.→5 domainsReporting & DisclosureClimate and ESG financial disclosure, GHG reporting, TRI, and sustainability frameworks.→
Resources
All guidesNEPA, ESA, administrative records, AI governance, and permitting workflow.→PolicyWhat the FY2026 NEPA Reform Means for Permitting TeamsRecent legislative changes to NEPA timelines and categorical exclusion authority change how agencies and consulting firms structure review processes.→ComplianceFive Common Mistakes in Section 7 ESA Consultation DocumentationSection 7 consultations are consistently among the most litigated parts of federal permitting. These documentation gaps create avoidable risk.→GuidanceHow to Build an Administrative Record That Holds Up in CourtWhen a NEPA decision is challenged, the judge reviews the administrative record—not the narrative. Disorganized or post-hoc records lose cases even when the underlying analysis was sound.→AI & GovernanceUsing AI in Federal Environmental Review: A Governance FrameworkAs AI enters environmental review workflows, agencies need governance that preserves defensibility while allowing speed gains.→ComplianceASTM E1527-21: What Changed and Why It MattersThe 2021 update introduced meaningful changes to recognized environmental condition definitions. Here is what practitioners need to know.→GuidanceCATEX Documentation: What Agencies Actually Need in the RecordCategorical exclusions are common, but poor documentation is a leading cause of successful legal challenges.→
Company
About OPEFMission, principles, and the team behind the platform.→How we fit inWhere OPEF sits in your permitting and compliance workflow.→PartnersIntegrations with compliance platforms and data providers.→CareersFull-time roles, hiring updates, and how we work as a team.→Environmental Professional NetworkFind permitting projects and connect qualified environmental reviewers.→ContactRequest a demo or ask a question about your program.→
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Solutions/Cultural Resources & Tribal/Tribal Consultation
Cultural Resources & TribalLead Agency / Tribes

Tribal Consultation

Government-to-government consultation records, request tracking, sensitive resource handling, and response packages.

Key capabilities
  • Consultation request and response logs
  • Sensitive information controls
  • Commitment and mitigation tracking
  • Public-record-safe exports
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Agency

Lead Agency / Tribes

Tribal Governments

Category
Cultural Resources & Tribal

7 domains in this category

Related domains
Section 106ACHP / SHPOEIS PreparationCEQ / Lead Agency

Structured Record

Every decision, study, and commitment in your Tribal Consultation workflow is linked to evidence and stored in a single auditable record.

Human-in-the-Loop

Reviewer gates ensure no determination is finalized without documented human review.

Exportable & Defensible

Generate agency-ready reports, administrative records, and audit packages with traceable sources.

Section 106Cultural Resources & TribalArchaeology
COORD. 37.7749° N122.4194° W

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Field ready

Built on real-world data. Proven in the field.

Rulepack validated

Aligned to jurisdictional rules. Continuously updated.

Permitting focused

From application to decision. Every step, covered.

Human review

AI-powered insights. Expert decision-making.

Platform

How it worksRulepacksData sourcesHow we fit inIntegrations

Solutions

Environmental consultantsEngineers & developersEnergy & utilitiesGovernment agenciesTribal nations

Resources

Case studiesResource hubWebinarsHelp centerAPI docs

Company

About OPEFCareersEnvironmental Professional NetworkNewsroomContact us

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