Chemical Accidents Are Rising: What EHS Leaders Should Do as U.S. Safeguards Shift

A Warning EHS Leaders Cannot Ignore

Industrial chemical accidents are not confined to plant boundaries. A fire, explosion, or toxic release can injure employees, disrupt production, force neighborhood evacuations, and damage trust built over decades. Recent U.S. data adds urgency. Reports filed with the Chemical Safety and Hazard Investigation Board show industrial accidents involving chemical releases increased from 83 in 2021 to 131 in 2025.

For EHS leaders, the trend is more than a regulatory headline. It is a signal to test whether critical safeguards will work under real operating conditions. Rules may change, but the consequences of failed containment, delayed detection, or weak emergency planning remain the same. Organizations that treat compliance as the ceiling risk missing the deeper operational weaknesses that allow catastrophic events to develop.

What the Chemical Accident Data Shows

The analysis published by Public Employees for Environmental Responsibility, or PEER, examined incident reports submitted to the CSB. The number of reported industrial accidents involving chemical releases rose from 83 in 2021 to 131 in 2025, an increase of approximately 58%. Incidents involving injuries or fatalities increased from 60 to 89 during the same period. The number rose from 73 in 2024 to 89 in 2025 alone.

These figures may not capture the full scale of the problem. According to PEER, facilities generally submit an initial report within four hours, but they are not required to update that report as additional injuries, damage, or environmental consequences become known. Some emergencies involving evacuations or shelter-in-place orders may also fall outside the reporting data when no qualifying atmospheric release is recorded.

The data should therefore be viewed as an important warning indicator, not a complete national inventory of every chemical emergency.

Why Chemical Facilities Remain Vulnerable

A major chemical incident rarely results from a single isolated mistake. It usually develops through a chain of technical, organizational, and human failures. Aging tanks, piping, valves, controls, and electrical systems can increase risk, particularly when inspections or preventive maintenance are delayed. Temporary repairs may remain in service longer than intended, while recurring alarms or minor leaks gradually become accepted as normal operating conditions.

Management systems can create additional vulnerabilities. An equipment modification, change in raw material, revised operating limit, or staffing adjustment may introduce hazards that were not present during the original process hazard analysis. Management-of-change procedures should cover operational deviations and variances, not only planned changes to equipment and technology.

Production pressure can also distort risk decisions. When reliability problems are repeatedly deferred to protect output, unresolved conditions accumulate. Contractor turnover, incomplete training, weak shift handovers, and poor near-miss reporting can further reduce the organization’s ability to detect warning signs.

Effective prevention requires attention to the complete system, including equipment condition, procedures, competence, supervision, communication, and leadership priorities.

The Changing Regulatory Landscape

EPA’s Risk Management Program applies to facilities that hold specified hazardous substances above regulated thresholds. Covered facilities must assess the potential consequences of an accident, identify preventive measures, and establish emergency response procedures. Approximately 11,500 facilities are subject to the program, including chemical manufacturers, refineries, warehouses, water treatment operations, agricultural suppliers, and food manufacturers.

The regulatory framework is changing. EPA’s 2024 Safer Communities by Chemical Accident Prevention rule added provisions involving safer technology analysis, employee participation, third-party audits, root-cause investigations, emergency communication, natural-hazard evaluation, and public access to facility information.

In February 2026, EPA proposed revisions intended to reduce regulatory burden, remove requirements it considers duplicative, and align parts of the RMP program more closely with OSHA’s Process Safety Management standard. Supporters describe this approach as greater regulatory consistency. Critics argue that removing recently adopted protections could increase risks for workers, responders, and surrounding communities.

The CSB has a different role. It is an independent, nonregulatory federal agency that investigates the root causes of major chemical incidents and issues recommendations intended to prevent similar events. Its investigations provide lessons that remain relevant regardless of which regulatory provisions are ultimately retained or revised.

Practical Actions EHS Leaders Can Take Now

Regulatory uncertainty should not become a reason to delay prevention. EHS and operations leaders can begin by identifying the equipment and processes with the highest potential consequences, then confirming that inspections, tests, and maintenance activities are current. Overdue work orders, bypassed alarms, temporary repairs, and impaired safeguards should be reviewed by risk rather than age alone.

Process hazard analyses should be revalidated against actual operating conditions. Reviews should examine whether throughput, chemistry, equipment configuration, staffing, or control strategies have changed since the previous analysis. Management-of-change records should also be checked for informal modifications and long-standing deviations that may never have entered the formal process.

Near misses deserve the same discipline. Small releases, unexpected pressure changes, nuisance alarms, and repeated equipment failures can reveal deteriorating controls before a major event occurs. Reporting systems must make it easy for employees and contractors to raise concerns without fear of blame.

Emergency preparedness requires equal attention. Facilities should conduct realistic exercises involving operators, contractors, security personnel, local fire departments, emergency medical services, and community authorities. Drills should test notification systems, evacuation decisions, shelter-in-place procedures, accountability methods, and communication during a loss of power or normal control systems.

Leadership should track indicators such as overdue safety-critical maintenance, unresolved hazard-analysis recommendations, alarm frequency, containment losses, emergency equipment deficiencies, and management-of-change quality. Injury rates alone provide little insight into the condition of process-safety barriers.

The central question is not whether a facility passed its last audit. It is whether its safeguards can prevent, detect, control, and respond to the next credible failure.

Building Resilience Beyond Compliance

The increase in reported chemical accidents should prompt a direct review of how facilities manage catastrophic risk. Compliance remains essential, but a regulation cannot identify every corroded component, incomplete procedure, weak handover, or deferred repair. Those conditions must be found and corrected through disciplined operational management.

Strong process safety depends on visible leadership, reliable equipment, competent employees, effective management of change, and emergency plans that have been tested under realistic conditions. It also requires organizations to learn from minor events before they become major ones.

A practical first step is to select one high-consequence process and examine its most important safeguards. Confirm that each safeguard is present, functional, independent where necessary, and supported by trained personnel. Regulatory requirements may continue to shift, but the responsibility to protect workers, communities, and the environment does not.