What Is the Difference Between the EPA and NJDEP?

The U.S. Environmental Protection Agency (EPA) is the federal agency responsible for enforcing national environmental laws, while the New Jersey Department of Environmental Protection (NJDEP) administers and enforces New Jersey’s environmental statutes and many federally delegated environmental programs.

Although the two agencies have different responsibilities, they frequently work together to achieve common environmental goals.

Generally speaking:

EPA responsibilities include:

  • Enforcing federal environmental laws
  • Establishing national environmental standards
  • Overseeing delegated state programs
  • Investigating significant environmental violations
  • Addressing interstate and nationwide environmental concerns

NJDEP responsibilities include:

  • Enforcing New Jersey environmental laws
  • Issuing state environmental permits
  • Administering many federally delegated programs
  • Conducting inspections
  • Managing site remediation oversight
  • Regulating environmental compliance within New Jersey

Many environmental programs operate through a cooperative federal-state framework in which EPA establishes minimum standards and NJDEP implements and enforces them within the state.

Can the EPA and NJDEP Investigate the Same Business?

Yes. In some situations, both EPA and NJDEP may investigate the same facility or environmental issue. This does not necessarily mean that duplicate enforcement actions will occur, but both agencies may have authority depending on the applicable laws and the nature of the alleged violation.

Joint involvement may occur when issues involve:

  • Hazardous waste
  • Air emissions
  • Water pollution
  • Chemical releases
  • Wetlands
  • Industrial facilities
  • Large-scale contamination
  • Federal environmental permits

In many cases, one agency serves as the primary regulator while coordinating with the other as needed.

When Does EPA Become Involved?

EPA generally becomes involved when potential violations implicate federal environmental laws, involve significant environmental impacts, cross state boundaries, or warrant federal oversight.

Examples may include:

  • Alleged violations of the Clean Water Act
  • Clean Air Act compliance issues
  • Resource Conservation and Recovery Act (RCRA) matters
  • Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA or Superfund) issues
  • Emergency releases of hazardous substances
  • Violations involving federally regulated permits

Many routine compliance matters remain primarily under NJDEP oversight because New Jersey administers numerous federally authorized environmental programs.

Does an NJDEP Investigation Automatically Trigger an EPA Investigation?

No. An NJDEP investigation does not automatically result in EPA involvement. Most environmental compliance matters are handled entirely at the state level.

However, EPA may become involved if:

  • The alleged violation involves federal law
  • The environmental impact is particularly significant
  • There are repeated or ongoing violations
  • Federal enforcement priorities are implicated
  • EPA determines additional oversight is appropriate

Likewise, some EPA investigations may proceed without direct NJDEP enforcement, depending on the facts and applicable regulatory authority.

How Do EPA and NJDEP Coordinate Enforcement?

EPA and NJDEP frequently share information and coordinate enforcement activities to avoid unnecessary duplication while ensuring compliance with environmental laws. The level of coordination varies depending on the type of environmental program and the complexity of the matter.

Coordination may include:

  • Sharing inspection findings
  • Exchanging technical information
  • Coordinating sampling results
  • Reviewing compliance records
  • Discussing corrective actions
  • Coordinating enforcement strategies

For businesses, this coordination means that information provided during one investigation may also be reviewed by the other agency when legally authorized.

What Types of Businesses Are Most Likely to Face Federal and State Oversight?

Businesses with significant environmental responsibilities are more likely to interact with both EPA and NJDEP. While every situation is unique, facilities operating under federal environmental programs often experience both state and federal oversight.

Examples include:

  • Manufacturing facilities
  • Chemical processing plants
  • Petroleum storage and distribution facilities
  • Waste treatment and disposal operations
  • Large industrial facilities
  • Power generation facilities
  • Companies handling hazardous substances

These businesses often operate under permits and regulations derived from both federal and New Jersey environmental laws.

Can EPA and NJDEP Both Impose Penalties?

Yes. Depending on the facts, both EPA and NJDEP may have independent authority to pursue enforcement under their respective laws. Whether both agencies actually assess penalties depends on the environmental program involved, the severity of the violation, and how enforcement responsibilities are allocated.

Possible enforcement actions include:

  • Notices of Violation
  • Administrative compliance orders
  • Civil administrative penalties
  • Civil judicial actions
  • Injunctive relief requiring corrective action
  • Supplemental environmental projects in appropriate cases
  • Ongoing compliance monitoring

In many situations, the agencies coordinate their efforts to avoid unnecessary duplication while ensuring that environmental laws are properly enforced.

How Should Businesses Respond to Parallel EPA and NJDEP Investigations?

Businesses facing investigations by both EPA and NJDEP should respond promptly, preserve relevant records, and work with experienced environmental professionals to understand their regulatory obligations. Coordinated investigations often involve technical, operational, and legal issues that benefit from an organized response.

Recommended steps include:

Preserve Relevant Documents

Maintain records such as:

    • Environmental permits
    • Inspection reports
    • Monitoring data
    • Sampling results
    • Employee training records
    • Maintenance logs
    • Internal compliance documentation

Avoid destroying or altering documents that may relate to an investigation.

Cooperate With Inspections

Businesses should understand the scope of agency requests and respond appropriately while maintaining accurate records of communications and inspections.

Conduct an Internal Compliance Review

An internal review may identify issues that require prompt corrective action, including:

    • Permit deficiencies
    • Recordkeeping problems
    • Equipment maintenance issues
    • Reporting obligations
    • Operational practices

Early identification of compliance concerns can help businesses address problems before they become more significant.

Coordinate Technical and Legal Advice

Environmental investigations often require collaboration among:

    • Environmental consultants
    • Licensed Site Remediation Professionals (LSRPs), when applicable
    • Engineers
    • Laboratory professionals
    • Environmental attorneys

A coordinated approach can help ensure that technical findings and legal obligations are addressed consistently.

Can Businesses Resolve EPA and NJDEP Matters Without Litigation?

Yes. Many environmental investigations are resolved through negotiated compliance measures, corrective actions, or administrative settlements rather than courtroom litigation. The appropriate resolution depends on the facts, the applicable environmental laws, and the willingness of the parties to address identified issues.

A resolution may involve:

  • Correcting environmental violations
  • Completing remediation activities
  • Updating compliance procedures
  • Paying civil penalties where appropriate
  • Implementing additional monitoring
  • Improving employee training
  • Submitting required reports

Businesses that respond promptly and demonstrate a commitment to compliance are often in a better position to work toward an efficient resolution.

What Are Common Misconceptions About EPA and NJDEP Enforcement?

Many businesses misunderstand how federal and state environmental enforcement works. Understanding the relationship between EPA and NJDEP can help organizations respond more effectively when environmental issues arise.

Misconception: Every NJDEP investigation automatically becomes a federal EPA case.

Reality: Most environmental matters are handled exclusively by NJDEP without direct EPA involvement.

 

Misconception: EPA and NJDEP perform identical roles.Reality: EPA establishes and enforces federal environmental laws, while NJDEP administers New Jersey environmental laws and many federally delegated programs.

 

Misconception: If one agency closes an investigation, no further review is possible.

Reality: Depending on the applicable laws and facts, another agency may still have authority to evaluate related compliance issues.

 

Misconception: Only large corporations face EPA investigations.

Reality: Federal involvement depends on the nature of the environmental issue, not simply the size of the business.

Practical Example: Coordinated Federal and State Oversight

A New Jersey chemical manufacturing facility experiences a release that affects nearby stormwater infrastructure.

NJDEP begins an investigation into compliance with state environmental regulations, while EPA evaluates whether federal Clean Water Act reporting and discharge requirements are implicated.

The company responds by:

  • Preserving environmental records
  • Retaining environmental consultants
  • Conducting an internal compliance review
  • Implementing corrective measures
  • Cooperating with both agencies
  • Coordinating communications through legal counsel

Although both agencies participate in the review, they coordinate their efforts to address the environmental issues while avoiding unnecessary duplication.

This example illustrates how a single environmental incident may involve both state and federal regulators.

Key Takeaways

  • EPA and NJDEP have different but complementary environmental enforcement responsibilities.
  • Many federal environmental programs are administered in New Jersey through NJDEP under delegated authority.
  • Some environmental matters involve only NJDEP, while others may include EPA participation.
  • Both agencies may coordinate inspections, investigations, and enforcement activities.
  • Businesses should respond promptly to agency inquiries and maintain complete environmental records.
  • Early coordination with environmental consultants and legal counsel can help businesses navigate complex regulatory matters.

When Should You Contact an Attorney?

Businesses should consider contacting an environmental attorney whenever EPA or NJDEP begins an investigation, requests significant information, or alleges environmental violations. Early legal guidance can help businesses understand their rights, preserve important records, coordinate technical responses, and communicate effectively with regulators.

An environmental attorney may be helpful when:

  • EPA or NJDEP initiates an investigation
  • A Notice of Violation is issued
  • Civil penalties are proposed
  • Environmental permits are questioned
  • Hazardous substance releases occur
  • A remediation project involves multiple agencies
  • A business faces parallel federal and state enforcement

Environmental investigations often involve overlapping legal, technical, and operational issues that benefit from a coordinated strategy.

Environmental investigations involving EPA or NJDEP can have significant legal and operational consequences for businesses. The Law Office of Alan S. Ashkinaze represents New Jersey property owners, developers, manufacturers, and commercial clients in environmental investigations, regulatory compliance, permitting, remediation, and enforcement matters. Contact The Law Office of Alan S. Ashkinaze to discuss your environmental obligations and develop a strategy for responding to state or federal regulatory actions.