The acquisition checked every box: Strong financial performance, modern facilities, an established customer base, and real growth potential. On paper, it looked like a perfect transaction, and the deal closed.
Months later, the new owner discovered unresolved air permitting obligations tied to equipment and processes that had been operating for years. Facility modifications had occurred, production volumes had changed, and emissions assumptions no longer matched permit requirements. What appeared to be a straightforward acquisition suddenly carried regulatory exposure, potential enforcement risk, and unexpected compliance costs.
Stories like this are more common than many investors, private equity firms, and corporate development teams realize.
The challenge is not that organizations ignore environmental risk. Most conduct financial reviews, legal assessments, and traditional environmental due diligence before a transaction closes. The issue is that many evaluations focus primarily on property conditions while overlooking operational compliance risks that can directly affect valuation, integration timelines, capital expenditures, and future growth opportunities. This is why organizations are increasingly adopting enhanced due diligence approaches that look beyond traditional assessments to uncover hidden transactional risks.
Due diligence questions many buyers never ask
When evaluating a company, a critical question often goes unanswered: Are their current air permits aligned with how the operation actually runs today and how we want to run it in the future?
It sounds simple, but the answer is often more complicated than expected.
Over time, facilities evolve (equipment is replaced, production lines expand, new materials are introduced, etc.) and if left unchecked, this "permitting drift" can expose the company to severe regulatory enforcement, unpermitted source violations, and potentially forced operational shutdowns. In extreme cases, unintended employee hazardous material exposure scenarios may also have been overlooked.
The result is compliance and safety risk that may remain unnoticed until a transaction, regulatory inspection, permit renewal, or expansion project forces a closer review.
Air permitting issues are different from most environmental liabilities; they're also operational, not just legal or financial. That means they can directly impact and limit the day-to-day operations of an organization.
Where air compliance risks hide
Air permitting risks rarely stem from intentional violations. More often, they develop gradually through normal business growth and changes. Common triggers include:
- Installation of new equipment or emission sources.
- Increased production rates.
- Changes in raw materials or fuel usage.
- Process modifications.
- Facility expansions.
- Evolving federal, state, or local air regulations.
For acquiring organizations, inheriting these issues can create significant challenges. Regulatory agencies generally focus on facility compliance regardless of ownership history. Once a transaction is complete, responsibility for managing and resolving air compliance obligations typically becomes the buyer's responsibility.
Why air permit due diligence cannot be overlooked
A comprehensive air permitting review does more than identify compliance gaps. It provides strategic insight into the long-term viability and growth potential of an operation. Unlike historical soil contamination, air compliance dictates whether a facility is legally allowed to operate tomorrow.
Questions include:
- Are all emission sources properly permitted?
- Have facility modifications altered permit applicability?
- Are compliance monitoring and reporting requirements being met?
- Will future expansion plans trigger additional permitting obligations?
- Are there unresolved agency concerns, notices, or compliance issues?
- Could operational changes create permit constraints that affect production growth?
- Have regional area changes impacted emissions limitations?
Answers to these can influence acquisition pricing, deal structure, integration planning, capital allocation decisions, and post-acquisition investment strategies.
Most importantly, they provide buyers with a clearer understanding of the true environmental risk profile associated with a transaction.
The evolution of due diligence
Traditional environmental due diligence has historically concentrated on property-based risks such as contamination, historical releases, underground storage tanks, and other physical liabilities.
Today's risk profile is much broader.
Organizations increasingly recognize that operational compliance, sustainability performance, health and safety programs, supply chain vulnerabilities, climate-related risks, and regulatory obligations all influence transaction success. Enhanced due diligence helps organizations evaluate these interconnected risks before a transaction closes rather than after costly surprises emerge.
Air permitting is a critical component of that broader evaluation.
A facility with unresolved air permit obligations can face enforcement actions, project delays, unexpected capital costs, production constraints, reputational impacts, and diminished enterprise value. Conversely, a facility with a strong air compliance foundation can accelerate integration, support growth initiatives, and improve investment confidence.
Ready to uncover hidden environmental risks before they become costly surprises? Contact BSI Consulting to discuss air permitting reviews, environmental compliance assessments, and enhanced due diligence support for your next transaction.
Meet our team of enhanced due diligence experts
JD Gibbs, Air Compliance Consulting Practice Lead
Daniel J. Smith, Global Practice Director for Environmental Consulting
