When a chemical incident happens, the first few minutes are not the time to start searching for information.

This is especially important during emergencies like the May incident in Southern California, when an overheating chemical tank at an aerospace facility prompted evacuation orders affecting roughly 40,000 people across six cities. The tank contained thousands of gallons of methyl methacrylate, a volatile chemical. Emergency crews worked to stabilize the situation while nearby communities prepared for a potentially larger incident.

Situations like this show how quickly a chemical hazard can escalate.  Having current information readily available supports incident command effectiveness, equipping teams to make faster decisions about evacuations, response zones and resources.

Chemical safety has traditionally been treated as a distinct compliance function, focused on chemical inventories, safety data sheets (SDSs), risk assessments and regulatory requirements. Those fundamentals remain critical, but chemical risk does not exist in isolation. During an incident, chemical safety becomes a workforce and operational concern; organizations must treat it as a core part of emergency preparedness.

Having the Right Information Before an Emergency

Chemical risks constantly evolve as organizations grow and manufacturers change formulations or introduce new substances. Contractors and employees working remotely or alone add to the challenge of managing those risks.

Effective chemical management starts with knowing which substances are present and where they are used, but maintaining inventories and SDSs is only the beginning. Organizations must keep this information current and ensure it reaches frontline workers.

An SDS provides critical guidance on chemical hazards, safe handling and personal protective equipment (PPE). However, an SDS stored in an office binder may be of little use to a lone worker responding to an emergency miles away.

Safety leaders should ask some basic questions:

• Can workers access current chemical information where the work is happening?
• If a formulation changes, how quickly does that information reach the people affected?

Regular chemical inventory reviews can help organizations identify hazardous substances and safer alternatives. The goal is to identify risks early enough to reduce them, not just document them.

When an Incident Happens, Information Becomes a Safety Control

Consider a chemical release at an industrial facility.

Responders immediately need answers. What substance is involved? How much is stored in the affected area? What PPE is required? Who is currently inside the danger zone?

Depending on the chemical, teams may need to establish response zones and determine decontamination requirements. Emergency teams may divide an affected area into hot, warm and cold zones. Hot zones present the greatest danger and require controlled access. Warm zones support activities such as decontamination and cold zones provide safer areas for coordinating the response.

Selecting appropriate PPE is equally critical. SDSs can provide detailed guidance on protective clothing, glove materials and respiratory protection. Responders must consider every chemical present in the affected area, not just the substance that triggered the incident.

Imagine a chemical alarm automatically triggering an incident report, giving responders immediate access to information about hazards in the affected area. That same view could show worker locations, training status and relevant emergency procedures.

This type of connected approach can reduce the manual work involved in gathering information. It also gives response teams a clearer picture of the incident.

Don't Overlook Contractors and Lone Workers

Contractors are a good example of why workforce readiness must be part of chemical safety.

An employee who regularly works at a facility may understand its hazards and emergency procedures. A contractor who visits once a year may be less familiar. Since their last visit, new chemicals may have been introduced or processes have changed.

Connecting contractor permits with training records and site induction requirements can expose these gaps before someone enters a hazardous area. Without that visibility, organizations may overlook workers who are unprepared for current site conditions.

Lone workers present additional challenges. EcoOnline research found that 64% of organizations surveyed had experienced an incident involving lone workers within the previous three years. During an emergency, knowing a worker's status and location can become just as important as knowing what hazard triggered the response.

Workforce readiness means understanding not only who has completed training, but who is present, who may be exposed and who may need help.

Test Whether Your Plans Work in the Real World

Many organizations already have chemical safety programs and emergency response plans. The challenge is ensuring that they work under pressure.

A static document explains what should happen. An exercise reveals what actually happens. Consider a simulated chemical release involving several hazardous substances. A contractor is working nearby and a lone worker has missed a scheduled check-in. Can responders quickly identify the chemicals involved and account for both workers?

Exercises like this expose gaps between information, people and procedures before a real emergency occurs.

EHS leaders should focus on four areas:

1. Check access to chemical information. Test whether frontline workers and responders can retrieve current SDSs from their actual work locations. Include remote sites and employees working in the field.

2. Connect workers to hazard risks. Link contractor permits, training and site induction records to current chemical risks. Establish procedures for identifying lone workers and accounting for everyone during an evacuation.

3. Test decisions under pressure. Run scenarios requiring teams to identify chemicals, select appropriate PPE and establish response zones. Include evacuation and decontamination decisions where necessary.

4. Review the response. Identify delayed or missing information after exercises or incidents. Assess whether worker accountability, medical follow-up and incident documentation procedures worked as intended.

These exercises should also test coordination between departments. Chemical management, contractor oversight and emergency response often involve different teams. Each needs access to relevant information and a clear understanding of its responsibilities.

The objective is not to create more administration. It’s to reduce uncertainties when an incident demands immediate action.

Move Chemical Safety from Compliance to Readiness

Compliance remains fundamental. Organizations need accurate inventories, current SDSs and properly trained workers. However, maintaining those records is not the same as being prepared to use them.

Being compliant does not automatically mean being ready. The real test comes when something changes unexpectedly and teams must make decisions quickly. In those moments, the question is not whether an organization possesses the information. It is whether the right person can find, understand and act on it.

Chemical safety, workforce readiness and emergency response have historically been managed as separate disciplines. Operationally, they are inseparable. A change in a chemical, supplier, process or work activity can affect all three. Safety programs must ensure those changes are reflected across chemical inventories, risk assessments, training, permits and emergency plans. For EHS leaders, the starting point is to identify where those connections break down. When conditions change, can the right people quickly see what has changed, who may be affected and what action is required? Can chemical information reach the frontline?

Organizations that address these gaps before an incident are better positioned to protect workers and respond effectively. Experience has shown that connected technology solutions are essential to achieve that. Because when every second counts, safety information cannot simply exist ‘somewhere’ in the organization. It must be at the fingertips of those responding to the incident, before it’s too late.