Types and Classes of Hard Hats
As a business owner in construction, manufacturing, or maintenance, you know safety starts with the right gear. Hard hats may look similar, but each one is designed for specific jobsite hazards. Understanding ANSI hard hat ratings helps you choose the correct level of protection, stay compliant, and keep your crew safe and comfortable.
What ANSI Hard Hat Ratings Mean
The ANSI/ISEA Z89.1 standard sets the performance requirements for industrial head protection. Every hard hat is rated for two main features.
- Type: How the hard hat protects against impact.
- Class: How the hard hat protects against electrical hazards.
Knowing both helps ensure your team’s protection matches the conditions they face.
Hard Hat Types: Type I and Type II
Type I and Type II hard hats differ based on where they provide impact protection.
| Hard Hat Type | Impact Protection | Typical Use |
| Type I | Top of the head | Most construction or maintenance jobs where falling objects are the main hazard. |
| Type II | Top and sides of the head | Work environments with potential side impacts, such as electrical utilities, confined spaces, or crane operations. |
Type II hard hats include additional padding and a suspension system that helps absorb lateral impacts, while Type I models focus on protection from overhead hazards.
Hard Hat Classes: G, E, and C
Hard hat classes describe the level of electrical protection provided by the shell.
| Hard Hat Class | Electrical Protection | Typical Use |
| Class G (General) | Tested to protect up to 2,200 volts | General construction, manufacturing, or warehouse work where electrical hazards are minimal. |
| Class E (Electrical) | Tested to protect up to 20,000 volts | High-voltage or utility work, power generation, or heavy industrial sites. |
| Class C (Conductive) | No electrical protection | Jobs with no electrical exposure, where lightweight or vented hard hats are preferred. |
Note: Some older references use the term “Class 3 hard hat” when referring to Class E. The correct current ANSI designation is Class E.
Hard Hat Classification Chart
Here’s a quick way to compare ANSI hard hat ratings at a glance.
| Type & Class | Protection Level | Typical Use | |
| Type I, Class G | Impact (top only), 2,200 volts | General construction | |
| Type I, Class E | Impact (top only), 20,000 volts | Electrical and utility work | |
| Type I, Class C | Impact (top only), no electrical protection | Indoor or low-risk areas | |
| Type II, Class G | Impact (top and sides), 2,200 volts | Construction or manufacturing | |
| Type II, Class E | Impact (top and sides), 20,000 volts | Electrical or high-voltage environments | |
| Type II, Class C | Impact (top and sides), no electrical protection | Areas requiring ventilation with no power risk |
OSHA Hard Hat Types and Requirements
The Occupational Safety and Health Administration (OSHA) references the ANSI Z89.1 standard in its regulations 29 CFR 1910.135 and 29 CFR 1926.100. These standards require employers to:
- Provide appropriate head protection for potential impact or electrical hazards.
- Ensure all hard hats are ANSI-certified and properly labeled.
- Inspect and replace damaged, expired, or noncompliant equipment.
Following OSHA’s requirements not only maintains compliance but also helps prevent injuries and downtime.
Maintenance and Replacement Tips
Keeping your crew’s hard hats in good shape is as important as choosing the right type and class.
- Inspect regularly: Look for cracks, dents, fading, or loose suspension parts.
- Replace the suspension annually or sooner if damaged.
- Replace the shell every five years—or immediately after a major impact.
- Clean gently: Use mild soap and water; harsh chemicals can weaken the shell.
Bottom Line
You don’t need to be an expert to make a smart safety choice; you just need clear information. By understanding ANSI hard hat ratings and using this hard hat classification chart, you can equip your team with protection that fits the job, supports compliance, and keeps your business running smoothly.
Product Compliance and Suitability
The statements contained in this guide are intended for general informational purposes only. Such statements do not constitute a product recommendation or representation as to the appropriateness, accuracy, completeness, correctness, or currentness of the information provided. Information provided in this guide does not replace the use by you of any manufacturer instructions, technical product manual, or other professional resource or adviser available to you. Always read, understand, and follow all manufacturer instructions. Portions of this article were generated in part by ChatGPT, and edited by a member of the Zoro team.
