Technical Rigor.
Strategic Clarity.
Confidence for Complex Air and Climate Decisions.
We help organizations navigate complex air quality, greenhouse gas, and climate challenges with the technical depth, regulatory judgment, and analytical precision these matters demand. Clients engage us for work that requires more than routine compliance support: technically demanding permitting, defensible emissions quantification, advanced scientific analysis, high-scrutiny disclosure, and strategic guidance in highly regulated environments. Our work is scientifically grounded, strategically informed, and built to withstand scrutiny.
Explore Our Services. Whether you are advancing a project, strengthening compliance performance, evaluating technical risk, or shaping a long-term climate strategy, we provide the expertise and execution to help you move forward with confidence.
Why Clients Choose Us
Clients turn to us when technical rigor, regulatory fluency, and defensible analysis are critical. We bring senior-led execution, integrated expertise across air, climate, GHG, and disclosure, and the ability to solve technically demanding challenges that require precision, judgment, and credible delivery.
- Senior-led delivery for complex, high-stakes matters
- Integrated expertise across air quality, GHG, climate disclosure, and decarbonization
- Technically defensible work built to withstand regulatory, audit, and stakeholder scrutiny
- Advanced analytical capability spanning quantification, monitoring strategy, modeling, and digital MRV
- Practical strategies for organizations operating in complex regulatory environments
- High-touch support tailored to technically demanding projects, programs, and disclosures
Air Permitting & Regulatory Strategy
We guide complex air permitting matters with technical precision, regulatory fluency, and practical execution. Our team develops defensible applications, permitting strategies, and agency-ready analyses for projects where technical complexity, regulatory risk, and timing all matter.
- NSR and PSD permit applications, including emissions quantification, applicability analysis, and permitting strategy
- Title V operating permits, renewals, modifications, and compliance support
- BACT evaluations, emissions offsets, and permitting support analyses
- Permitting for new, modified, and relocated emission sources
- Portable equipment registrations and PERP support
- Air district registrations, notifications, and rule-specific permitting support
- Permitting strategy and regulatory agency coordination
- Comprehensive air permitting program management
Air Quality Modeling & Impact Analysis
We provide advanced air quality modeling and scientific analysis to support permitting, environmental review, and complex technical decisions. Our work is grounded in sound methodology, clear interpretation, and the scientific rigor required for high-consequence projects and high-scrutiny reviews.
- AERMOD and AERSCREEN air dispersion modeling
- Air quality impact analyses for permitting and environmental review
- Hydrogen emissions and alternative fuel assessments
- CEQA air quality technical studies
- Health risk assessments (HRA)
- AB 2588 Air Toxics Hot Spots analyses
- Ambient air monitoring strategy and technical support
Emissions Reporting & Regulatory Disclosure
We deliver emissions reporting programs that are accurate, consistent, and technically defensible. From routine compliance submissions to complex multi-site inventories, we help clients meet reporting obligations with rigor, repeatability, and the data discipline required for confident decision-making.
- Title V semiannual monitoring and annual compliance reporting
- Annual emissions reporting, criteria pollutant calculations, and inventory development
- Air toxics inventories and NESHAP reporting
- AB 2588 Air Toxics Hot Spots reporting and prioritization support
- Toxic emissions inventory plans and regulatory submissions
- Multi-facility reporting program management with standardized methodologies and QA/QC
Air Compliance & Program Assurance
As your dedicated air permitting consultant, we provide comprehensive guidance and help clients strengthen air compliance programs through careful assessment, technical oversight, and audit-ready documentation. Our support is designed for organizations that need more than routine compliance administration: they need durable programs, defensible records, and experienced guidance when risk is elevated.
- Environmental compliance audits and facility assessments
- Air district rule applicability reviews and compliance evaluations
- Permit compliance and ongoing program support
- Regulatory compliance assessments and corrective action planning
- Agency audit support for air permitting and compliance programs
- Notice of Violation response and agency negotiation support
- Fractional environmental management support and air quality staff augmentation for air, GHG, and compliance programs.
- Navigating CARB compliance, California MRR, and facility-specific regulatory strategies.
- Leak Detection and Repair program support
- Air quality compliance program management support
Advanced Technical & Analytical Services
We bring advanced analytical capability to technically demanding air and climate challenges. From monitoring strategy and emissions quantification to digital reporting systems and expert technical review, we help clients solve high-stakes problems that require precision, defensibility, and specialized technical judgment.
- Advanced emissions quantification, reconciliation, and uncertainty analysis
- Real-time, fence-line, and community air monitoring strategy
- Methane detection and measurement program design
- Emissions data management systems and reporting architecture
- GIS-based environmental screening and receptor analysis
- Cumulative impact and multipollutant assessments
- Industrial decarbonization feasibility analysis
- Digital measurement, reporting, and verification (MRV) frameworks
- Independent technical peer review and defensibility assessments
- Source testing strategy, emissions factor evaluation, and data interpretation
Greenhouse Gas Management & Decarbonization
We help organizations quantify emissions, meet reporting obligations, and build credible pathways to decarbonization. Our GHG services combine technical depth, data discipline, and strategic insight across regulatory, operational, and disclosure priorities, helping clients move from compliance to credible climate performance.
- EPA Greenhouse Gas Reporting Program (GHGRP) reporting
- California Mandatory Reporting Regulation (MRR) compliance and reporting
- California SB 253 emissions inventory development, assurance readiness, and disclosure support
- Methodologies aligned with the Greenhouse Gas Protocol.
- Scope 1, 2, and 3 GHG accounting, modeling, and target setting
- Carbon neutrality, net-zero, and avoided emissions assessments
- Methane emissions management and reduction planning
- Methane monitoring strategy and implementation support
- Fluorinated gas compliance and refrigerant emissions management
- GHG program development and management
Climate Disclosure & ESG Reporting
Through our ESG consulting services, we support climate disclosure and ESG reporting with the technical rigor expected by regulators, investors, and leadership teams. Our approach connects data quality, reporting frameworks, and governance structures to produce disclosures that are clear, credible, decision-ready, and aligned with heightened expectations for accuracy and accountability.
- Climate risk assessments and scenario analysis
- TCFD: ISSB/IFRS S2 aligned reporting and climate disclosure strategy
- Sustainability consulting for ESG program development and corporate sustainability strategy.
- CDP, SASB, GRI, CSRD, and California climate disclosure alignment
- SB 261 climate-related financial risk disclosure support
- ESG data management and disclosure readiness assessments
- Sustainability metrics, KPI development, and reporting framework support
Energy Efficiency & Decarbonization Planning
We identify practical, technically sound pathways to improve energy performance and reduce emissions. Our team evaluates opportunities with a focus on feasibility, implementation sequencing, and long-term operational value, helping clients prioritize measures that are both credible and executable.
- Facility energy assessments and energy audits
- Supply chain sustainability consulting, including energy and emissions evaluations.
- Energy efficiency opportunity identification
- Conservation measure development and implementation planning
- Feasibility studies and cost-benefit analyses
- Decarbonization roadmaps and implementation strategies
Regulatory Strategy & Advocacy
We help clients navigate and shape complex regulatory developments through rigorous analysis, strategic insight, and technically grounded advocacy. Our work supports stronger policy positions, more practical implementation, and credible influence in matters where technical detail and regulatory outcomes are closely linked.
- Regulatory monitoring and legislative tracking
- Stakeholder engagement and industry outreach
- Emissions calculation methodology development for agency approvals
- Emissions measurement protocol development for agency approvals
- Research studies to inform regulatory advocacy
- Policy research and regulatory impact assessments
- Position papers and comment letters
- Proposed regulatory language and rule revisions
- Strategic advocacy before regulatory agencies
- Industry coalition and trade association support
Areas of Expertise
- Regulatory Advocacy and Negotiations
- Climate Change / Methane / Methane Strategy
- Air Quality Permitting, Modeling, and Analysis
- GHG Program Development and Management
- GHG Strategy and Emissions Reductions
- Net-Zero / Decarbonization
- Scope 3
- Supply Chain Carbon Management Hydrogen and Alterative Fuels
Sustainability Disclosures - Life Cycle Analysis
- Renewable Energy Certificates (RECs), Power Purchase Agreements (PPAs) Evaluations