Hazard Communication: GHS Labeling and SDS Requirements

OSHA's Hazard Communication Standard (HazCom) ensures workers have access to information about chemical hazards in their workplace. The OSHA HazCom standard requires chemical manufacturers to classify hazards and communicate them through labels and Safety Data Sheets. Importantly, employers must then transmit this information to workers through comprehensive training programs.

HazCom consistently ranks among OSHA's most frequently cited standards, appearing in the top ten violations year after year. Specifically, citations often involve missing or inadequate written programs, insufficient training, and inaccessible Safety Data Sheets. As a result, construction employers must prioritize hazard communication compliance to avoid penalties and protect workers.

The standard applies to any workplace where employees may be exposed to hazardous chemicals under normal conditions or in foreseeable emergencies. For construction, this includes paints, solvents, adhesives, sealants, fuels, and countless other products used daily. Consequently, virtually every construction site falls under HazCom requirements.

Core HazCom Requirements

• Written program: Develop and implement a written hazard communication program specific to your workplace.
• Chemical inventory: Maintain a list of all hazardous chemicals present in the workplace.
• Container labeling: Ensure all chemical containers have proper GHS-compliant labels.
• SDS availability: Maintain Safety Data Sheets for all hazardous chemicals and ensure worker access.
• Employee training: Train workers on chemical hazards before initial assignment and when new hazards arise.

The Globally Harmonized System provides an international framework for consistent hazard communication across borders. According to the OSHA GHS guidance document, this system standardizes hazard classification criteria, label elements, and Safety Data Sheet formats. In 2012, OSHA aligned the HazCom standard with GHS to improve worker protection and facilitate international trade.

Before GHS adoption, different countries used varying systems for classifying the same chemical hazards. For example, a chemical might be classified as "toxic" in one country but "harmful" in another. This inconsistency created confusion for workers and compliance challenges for multinational companies.

GHS establishes uniform criteria for classifying health hazards, physical hazards, and environmental hazards. These classifications then determine the specific label elements and SDS content required for each chemical. Therefore, workers now encounter consistent hazard information regardless of where products originate.

GHS Benefits for Construction

• Consistent information: Standardized labels and SDS formats make hazard information easier to understand.
• Universal pictograms: Visual symbols communicate hazards across language barriers.
• Improved safety: Better hazard information leads to more informed decisions and safer handling.
• Simplified training: Consistent format makes training more efficient across different products.

GHS labels provide immediate hazard communication to workers handling chemical products. The OSHA labeling quick reference guide outlines the six required label elements that chemical manufacturers must include. Understanding these elements helps workers quickly identify hazards and necessary precautions.

Every GHS-compliant label must contain standardized elements arranged in a consistent format. Specifically, labels must include the product identifier, signal word, hazard statements, precautionary statements, pictograms, and supplier information. Together, these elements provide comprehensive hazard communication at the point of use.

Required GHS Label Elements

Workplace Container Labels

When workers transfer chemicals to secondary containers, those containers also require labeling. Employers may use simplified labels that include the product identifier and words, pictures, or symbols providing general hazard information. However, these workplace labels must correspond to the hazard communication training workers received.

GHS pictograms provide instantly recognizable visual warnings that communicate hazards across language barriers. According to the OSHA pictogram guide, nine standardized pictograms represent different hazard categories. Training workers to recognize these symbols enables quick hazard identification even before reading text.

Each pictogram appears as a black symbol on a white background within a red diamond border. This distinctive format makes pictograms easy to spot on crowded labels with multiple warnings. Furthermore, the consistent appearance helps workers immediately recognize hazard information across different products.

Multiple pictograms may appear on a single label when a chemical presents several hazard types. For instance, a solvent might display both the flame pictogram for flammability and the health hazard pictogram for organ toxicity. In such cases, workers must consider all hazards when handling the product.

Safety Data Sheets provide comprehensive hazard communication information beyond what labels can convey. The OSHA SDS quick reference guide explains the standardized 16-section format required under GHS. Employers must maintain SDS for every hazardous chemical and ensure workers can access them during their shifts.

Unlike labels designed for quick reference, SDS documents contain detailed technical information for emergency responders, medical personnel, and safety professionals. Nevertheless, all workers should know how to locate and read basic SDS information relevant to their exposure risks.

SDS Accessibility Requirements

Workers must have immediate access to SDS during their work shifts without leaving their work area. Paper copies in binders, electronic systems on computers or tablets, or internet access to manufacturer databases all satisfy this requirement. However, backup systems must exist if primary electronic access fails.

Every employer with hazardous chemicals must develop a written hazard communication program. According to OSHA 29 CFR 1910.1200, this program must describe how the employer will meet labeling, SDS, and training requirements. Additionally, the program must address hazard communication on multi-employer worksites.

The written program serves as your roadmap for hazard communication compliance and training consistency. Include specific procedures for each program element rather than simply restating OSHA requirements. Furthermore, assign responsibility for program implementation to specific individuals who will ensure ongoing compliance.

Written Program Elements

• Chemical inventory: Complete list of hazardous chemicals with product identifiers matching SDS and labels.
• Labeling procedures: Methods for ensuring incoming containers are labeled and workplace labels are maintained.
• SDS management: How SDS are obtained, maintained, and made accessible to workers.
• Training program: When and how training is provided, topics covered, and documentation methods.
• Multi-employer provisions: Methods for sharing hazard information with other employers on site.

Effective training transforms hazard communication from paperwork into actual worker protection. The OSHA training resources provide guidance on developing comprehensive HazCom training programs. Training must occur before initial assignment and whenever new hazards are introduced.

Training must cover both general hazard communication concepts and specific hazards present in the workplace. Workers need to understand how to read labels, locate and use SDS, and protect themselves from chemical exposures. Moreover, training should address the specific chemicals workers will encounter in their assigned tasks.

Required Training Topics

• HazCom standard overview: Purpose of the standard and how it protects workers from chemical hazards.
• Label comprehension: How to read and interpret GHS label elements including pictograms and signal words.
• SDS access and use: Where SDS are located and how to find specific hazard information within them.
• Workplace hazards: Specific chemicals present, their locations, and associated health and physical hazards.
• Protective measures: How to protect themselves including PPE, engineering controls, and safe work practices.
• Emergency procedures: What to do in case of spills, exposures, or other chemical emergencies.

Document all training including dates, topics covered, trainer identification, and attendee names. Retain training records for the duration of employment to demonstrate compliance during inspections. Additionally, verify worker comprehension through questions, demonstrations, or practical exercises.

Construction sites typically involve multiple employers whose workers may be exposed to each other's chemicals. According to OSHA construction HazCom requirements, employers must share hazard information when their operations create chemical exposures for other employers' workers. This coordination prevents gaps in hazard communication that could endanger workers.

General contractors typically coordinate hazard communication across the site as the controlling employer. Specifically, they should establish procedures for subcontractors to share chemical inventories, SDS, and information about chemical use locations. Furthermore, site-wide communication methods should alert all workers when hazardous operations occur.

Multi-Employer Coordination Requirements

• Share chemical information: Inform other employers of hazardous chemicals their workers may encounter.
• Provide SDS access: Make SDS available to other employers and their workers when requested.
• Coordinate activities: Schedule hazardous chemical operations to minimize exposure to other workers.
• Communicate precautions: Share information on protective measures and emergency procedures.

Include hazard communication requirements in subcontractor agreements and site safety rules. Require subcontractors to provide chemical inventories before beginning work and to notify the general contractor when bringing new chemicals on site. Similarly, establish procedures for sharing SDS and coordinating work when chemical hazards affect multiple trades.

Implement Effective Hazard Communication

Comprehensive hazard communication protects workers from chemical exposures while ensuring regulatory compliance. Begin by developing a written program that addresses your specific operations and chemical inventory. Next, implement proper labeling, maintain accessible SDS, and train all workers before chemical exposure.

Keep in mind that hazard communication is an ongoing responsibility requiring regular attention. Update your chemical inventory as products change, maintain current SDS, and train workers whenever new hazards arise. Ultimately, effective hazard communication empowers workers to protect themselves from chemical hazards they encounter daily.