North American certification for globally recognized hazardous areas

As global safety science experts, we select a team of top experts to provide you with the most industry-renowned safety testing and certification services The UL brand is highly recognized in North America and accepted by certification bodies, installers and regulators in local, regional or international markets. Leverage our global brand recognition and trust to add value to your innovations.

Through the UL certification process, you can reach the global market faster, and we not only understand these requirements, but also help to develop them. In fact, we participate in more than 50 standards-writing committees such as: TC31 (IECEx), UL STP (North America), NFPA, API, BSEE, and CFR Committees.

Overview of UL and C-UL Hazardous Area Certifications in North America

UL and C-UL certification services for hazardous areas include:

Evaluation and testing

General Premises/Safe Area requirements - Certification of risks associated with electric shock, fire and personal injury.

Hazardous Area/Explosion protection requirements - Certification of area classification and form of explosion protection based on partition or area installation. Hazardous Area Certified products must meet the general site and hazardous area requirements of UL and American National Standards Institute (ANSI) and CAN standards.

Production control

According to the Occupational Safety and Health Administration (OSHA) and the Standards Council of Canada (SCC), at least four production inspections are performed annually.

What is a dangerous area?

Places where there is a risk of explosion or fire due to the presence of flammable gases, vapors from flammable or flammable liquids, combustible dust or combustible fibres or spatter.

How are dangerous areas classified?

Area classification - Hazardous areas are classified according to the likelihood of the presence of combustible concentrations of combustible materials. There are two systems, including the traditional North American Division system and the optional Zone system. For more information, see below:

Division system example flag

区域（Zone）系统示例标志