Why Hazard Communication Is a Cornerstone of Every EHS Management System

Every workplace uses chemicals — from cleaning agents and lubricants to solvents, adhesives, paints, fuels, and industrial compounds. Even small shops with only a handful of products still expose employees to chemical hazards that can cause burns, respiratory issues, fires, explosions, or long‑term health effects.

This is why OSHA’s Hazard Communication Standard (29 CFR 1910.1200) exists. Often called “HazCom” or “Right‑to‑Know,” it ensures employees understand:

What chemicals they’re exposed to
The hazards associated with those chemicals
How to protect themselves
What to do in an emergency

A Hazard Communication Program is not optional — it is a mandatory OSHA requirement for any employer with hazardous chemicals in the workplace.

But beyond compliance, a strong HazCom program is a critical part of your EHS Management System, supporting:

Risk reduction
Emergency preparedness
Training and competency
Incident prevention
Regulatory compliance
Safety culture

This guide walks you through exactly how to build a compliant, effective, and practical Hazard Communication Program — step by step.

What Is a Hazard Communication Program?

A Hazard Communication Program is a structured system that ensures employees have the information they need to safely handle hazardous chemicals. OSHA requires employers to develop, implement, and maintain a program that includes:

A written plan
A chemical inventory
Safety Data Sheets (SDS)
GHS‑compliant labels
Employee training

The goal is simple:

Employees must know what chemicals they are working with, the hazards involved, and how to protect themselves.

HazCom is one of OSHA’s most frequently cited standards — not because it’s complicated, but because it requires consistent documentation and follow‑through.

Why Hazard Communication Matters

HazCom is more than a compliance checkbox. It protects employees from:

Chemical burns
Respiratory hazards
Skin irritation
Fire and explosion risks
Toxic exposures
Long‑term health effects
Environmental hazards

A strong HazCom program also:

Reduces incidents
Improves emergency response
Strengthens training programs
Supports JHA development
Enhances overall EHS maturity

When employees understand chemical hazards, they make safer decisions — and that’s the foundation of a strong safety culture.

The 5 Required Elements of a Compliant Hazard Communication Program

OSHA’s HazCom Standard requires five core components:

Written Hazard Communication Plan
Chemical Inventory
Safety Data Sheets (SDS)
GHS‑Compliant Labeling System
Employee Training

Let’s break each one down.

1. Written Hazard Communication Plan

Your written plan is the backbone of your HazCom program. It must describe how your facility meets each requirement of the standard.

A compliant plan includes:

1.1 Purpose and Scope

Explain why the program exists and who it applies to.

1.2 Roles and Responsibilities

Define responsibilities for:

EHS staff
Supervisors
Employees
Contractors
Chemical purchasers

1.3 Chemical Inventory Procedures

How chemicals are added, tracked, and removed from the inventory document.

1.4 SDS Management

Where SDSs are stored, how they are accessed, and who maintains them.

1.5 Labeling System

How primary and secondary containers are labeled.

1.6 Training Requirements

Who is trained, how often, and what topics are covered.

1.7 Non‑Routine Tasks

How employees are informed about hazards during infrequent or unique tasks.

1.8 Multi‑Employer Worksites

How chemical hazards are communicated to contractors and visitors.

1.9 Program Review and Updates

How often the plan is reviewed and who approves changes.

A written plan must be:

Accessible
Up‑to‑date
Specific to your facility
Reviewed annually

Generic templates are not compliant unless customized to reflect your workplace.

2. Chemical Inventory

Your chemical inventory is a complete list of every hazardous chemical in your workplace.

This includes:

Liquids
Solids
Gases
Aerosols
Mists
Vapors
Dusts
Fumes

And it applies to:

Bulk chemicals
Small containers
Cleaning products
Maintenance supplies
Laboratory chemicals
Compressed gases
Flammables
Adhesives and sealants

2.1 What Must Be Included in the Inventory?

Each entry should include:

Product name
Manufacturer
Chemical type
Location
Quantity
SDS availability
GHS classification

2.2 How to Maintain the Inventory

Your inventory must be:

Accurate
Updated regularly
Reviewed at least annually
Linked to SDSs

A strong inventory system prevents:

Missing SDSs
Outdated chemicals
Improper storage
Unknown hazards

3. Safety Data Sheets (SDS)

SDSs are the heart of chemical hazard communication. OSHA requires that:

Every hazardous chemical has an SDS
SDSs are accessible to employees at all times
SDSs are not locked away or restricted
SDSs are updated when new versions are released

3.1 SDS Format (GHS 16‑Section Format)

All SDSs must follow the standardized 16‑section format, including:

Identification
Hazard(s) identification
Composition
First‑aid measures
Fire‑fighting measures
Accidental release measures
Handling and storage
Exposure controls/PPE
Physical and chemical properties
Stability and reactivity
Toxicological information 12–15. Ecological, disposal, transport, regulatory
Other information

3.2 SDS Accessibility Requirements

SDSs must be:

Available on all shifts
Accessible without asking permission
Available in paper or digital form
Provided to contractors when needed

If employees cannot access SDSs, the employer is out of compliance.

4. GHS‑Compliant Labeling System

OSHA’s HazCom Standard aligns with the Globally Harmonized System (GHS) for chemical classification and labeling.

4.1 Primary Container Labels Must Include:

Product identifier
Signal word (“Danger” or “Warning”)
Hazard statements
Pictograms
Precautionary statements
Manufacturer information

4.2 Secondary Container Labels

Secondary containers (spray bottles, squeeze bottles, jars, etc.) must be labeled unless:

The employee who filled it uses it immediately
It never leaves their control

Otherwise, labels must include:

Product name
Hazards
Pictograms (recommended)

4.3 GHS Pictograms

Employees must recognize all nine pictograms:

Flame
Flame over circle
Exploding bomb
Gas cylinder
Corrosion
Skull and crossbones
Health hazard
Exclamation mark
Environment (non‑mandatory under OSHA)

Training must cover what each symbol means.

5. Employee Training

Training is required for:

New hires
Employees exposed to chemicals
Employees who may encounter chemicals during emergencies
Contractors (when applicable)

5.1 Training Must Cover:

HazCom program overview
Chemical hazards in the workplace
How to read GHS labels
How to read SDSs
PPE requirements
Emergency procedures
Non‑routine tasks
Location of SDSs
How to report chemical incidents

5.2 Training Frequency

Training must be provided:

At hire
When new chemicals are introduced
When new hazards are identified
When procedures change
As refresher training (recommended annually)

5.3 Documentation Requirements

Training records should include:

Employee name
Date of training
Trainer name
Topics covered
Sign‑in sheet or digital acknowledgment

Training is one of the most common HazCom citations — documentation matters.

How to Build Your Hazard Communication Program (Step‑by‑Step)

Now that you understand the required elements, here’s how to build your program from the ground up.

Step 1: Conduct a Chemical Inventory Audit

Walk through your facility and document:

Every chemical
Every container
Every storage area
Every process that uses chemicals

Check for:

Unlabeled containers
Expired chemicals
Improper storage
Missing SDSs

This audit becomes your baseline.

Step 2: Create or Update Your Written HazCom Plan

Use your audit findings to:

Update roles and responsibilities
Add new chemicals
Update SDS procedures
Improve labeling practices
Add contractor communication procedures

Your plan must reflect actual practices, not ideal ones.

Step 3: Organize and Update SDSs

Ensure:

Every chemical has an SDS
SDSs are current
SDSs are accessible
SDSs match your inventory

Digital SDS systems are acceptable if:

Employees can access them without delay
Backup access exists during power outages

Step 4: Implement a GHS Labeling System

Standardize your labels:

Use consistent formats
Include pictograms
Train employees on label elements
Label all secondary containers

Consider color‑coded labels for quick recognition.

Step 5: Train Employees

Training should be:

Practical
Hands‑on
Scenario‑based
Reinforced regularly

Include real examples from your facility:

Solvents
Cleaners
Adhesives
Fuels
Acids and bases

Employees learn best when training is relevant.

Step 6: Integrate HazCom Into Your EHS Management System

HazCom should connect to:

6.1 JHAs

Chemical hazards must be included in job hazard analyses.

Job Hazard Analysis (JHA): A Practical, Step‑by‑Step Framework

6.2 LOTO Procedures

Some chemicals require isolation before maintenance.

How to Create an Effective Lockout/Tagout Program

6.3 Incident Reporting

Chemical spills, exposures, and near misses must be reported.

Incident Reporting: Why Employees Don’t Report — and How to Fix It

6.4 Emergency Response Plans

SDSs guide spill response and first aid.

6.5 Training Programs

HazCom training should reinforce PPE, emergency response, and safe handling.

Step 7: Review and Improve the Program Annually

Annual reviews should include:

Inventory updates
SDS updates
Training refreshers
Labeling audits
Employee feedback
Incident trend analysis

Continuous improvement is the hallmark of a mature EHS system. Once again, document, document, document. Even if the review does not identify any gaps, document the process.

Common HazCom Mistakes (and How to Avoid Them)

1. Missing or outdated SDSs

Solution: Assign SDS management to a specific role. This is often filled by someone in Procurement or Product Stewardship.

2. Unlabeled secondary containers

Solution: Provide pre‑printed labels and enforce usage.

3. Incomplete chemical inventory

Solution: Audit quarterly.

4. Poor training documentation

Solution: Use sign‑in sheets or digital tracking.

5. Generic written plans

Solution: Customize your plan to your facility.

6. Chemicals stored improperly

Solution: Train employees on segregation and compatibility.

7. Contractors not informed of hazards

Solution: Add contractor communication to your plan.

Final Thoughts: HazCom Is a Foundation, Not a Form

A strong Hazard Communication Program is more than paperwork — it’s a living system that protects employees, prevents incidents, and strengthens your entire EHS Management System.

When employees understand chemical hazards, they:

Make safer decisions
Respond better to emergencies
Use PPE correctly
Report hazards sooner
Build a stronger safety culture

HazCom is one of the most important programs you will ever implement — and one of the most impactful.