Start with the work environment, moving-vehicle exposure, lighting, weather, and the rules that apply to the job. Then choose the garment Type, Performance Class, and features your crew needs.
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ANSI/ISEA 107 uses both a garment Type and a Performance Class. Type describes the work setting; Class describes the minimum amount and placement of high-visibility background and retroreflective material.
| Garment | Intended setting | Common examples | Important distinction |
|---|---|---|---|
|
Type O Class 1 |
Off-road work around moving vehicles or equipment in a non-complex environment. | Warehouses, mines, petrochemical sites, and off-road facilities when the employer permits Type O. | The only class available for Type O. It is not intended for workers inside roadway traffic-control zones. |
|
Type R or P Class 2 |
Roadway or public-safety work requiring greater daytime and nighttime conspicuity. | Construction crews, utility workers, survey crews, airport ground crews, and many traffic-exposed jobs. | A common minimum for roadway work, but the employer or controlling agency may require Class 3. |
|
Type R or P Class 3 |
Higher-risk, complex, poor-weather, low-light, or longer-recognition-distance conditions. | Night flaggers, high-speed roadway crews, towing and recovery crews, and emergency response work. | Provides the largest visible area and helps identify the wearer's human shape through torso and arm coverage. |
|
Role identification Colored / non-ANSI |
Low-risk settings where the purpose is identifying staff, visitors, volunteers, departments, or teams. | Events, warehouses without a roadway requirement, schools, security teams, and facility visitors. | Reflective tape or a bright appearance alone does not make a garment ANSI compliant; check the sewn-in label. |
Use these questions as a starting point. If a job specification or safety manager names a Type or Class, that requirement controls.
Start with Performance Class 2 or 3. The current MUTCD requires one of those classes for workers within a roadway temporary traffic control zone, with the appropriate class selected by the employer's designated safety person.
Type O Class 1 may be appropriate when the environment is non-complex, hazards do not approach at roadway speeds, and no higher employer or agency rule applies.
Consider Class 3 for nighttime work, poor weather, complex backgrounds, high-speed traffic, or tasks that divert the worker's attention. Nighttime flaggers should wear Class 3 under MUTCD guidance.
A colored safety vest can separate visitors, employees, supervisors, volunteers, or departments by color. Do not substitute it for ANSI apparel when certified high visibility is required.
Type O Class 1 provides the minimum ANSI/ISEA 107 conspicuity for workers exposed to moving equipment or vehicles away from public roadway traffic.
Do not assume a basic reflective vest is Class 1. The label must identify it as ANSI/ISEA 107 Type O, Performance Class 1.
Class 2 adds more fluorescent background and retroreflective material than Class 1. It is widely used where workers are exposed to roadway traffic or moving equipment in more complex surroundings.
Class 3 uses the greatest amount of high-visibility material. Sleeved vests, shirts, and jackets add arm visibility that helps drivers recognize a person and their movement sooner.
No. ANSI classification depends on tested materials, minimum visible areas, garment design, and labeling—not color alone. Compliant garments commonly use fluorescent yellow-green or orange-red background material with retroreflective bands.
Blue, black, red, green, and purple vests are useful for identifying roles or teams, but most are not substitutes for certified roadway apparel. Even a yellow or orange vest is not proven compliant unless its sewn-in label identifies the ANSI/ISEA standard, Type, and Performance Class.
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Once the required Type and Class are known, compare comfort, storage, garment construction, and job-specific hazards.
Breathable mesh helps in hot conditions. Solid fabric can provide more structure, wind resistance, and a smoother area for pockets or logos.
Safety vests with pockets keep radios, pens, phones, plans, and small tools accessible. Surveyor styles provide greater storage and organization.
Breakaway shoulders, sides, or closures can help a garment release if it catches on machinery, material, or moving equipment.
A vest layers easily. A high-visibility shirt gives all-day coverage, while a reflective jacket adds weather protection. The garment still must meet the required Type and Class.
High visibility does not automatically mean flame resistant. If flash-fire, arc-flash, or other thermal hazards exist, select apparel certified to the separate standard required for that hazard.
Many ANSI garments can be customized, but artwork should not cover reflective tape or reduce the required visible background area. For large graphics, ask us to review placement before production.
Do not judge compliance from a product photo or reflective tape alone. Check the permanent garment label and the employer's requirements.
Remember: ANSI/ISEA 107 defines garment performance. OSHA rules, the MUTCD, state or local requirements, a project contract, and the employer's hazard assessment determine what a worker must wear in a specific situation.
It depends on the site. Workers within a roadway temporary traffic control zone generally need Performance Class 2 or 3. Off-road construction sites may have different requirements based on moving equipment, visibility, the employer's hazard assessment, and the project specification. Never select a class from the job title alone.
Class 3 provides more high-visibility material and greater body definition, but the correct choice is the class required for the hazard. More material can also affect heat and comfort. Use the required class, then choose a breathable or weather-appropriate garment within that class.
Not every nighttime task automatically requires Class 3, but darkness increases risk. The MUTCD recommends Class 3 apparel for flaggers during nighttime activity. Other workers should follow the employer's hazard assessment and the agency or contract rules governing the site.
A standalone Class 3 garment needs the required torso and arm coverage, so Class 3 apparel is commonly made as a sleeved vest, shirt, jacket, or coverall. A Class 2 top worn with a qualifying Class E bottom can form a Class 3 ensemble when both items are labeled and used as specified.
Most solid colored role-identification vests are not ANSI/ISEA 107 compliant, even if they include reflective tape. Some garment designs use non-fluorescent contrast panels while retaining enough certified background material to qualify, so the sewn-in label—not the product color name—provides the answer.
Many ANSI-rated garments can be logo printed. The decoration should stay off retroreflective bands and must not reduce the required visible fluorescent background area below the garment's rating. Choose a suitable print size and location, and have large artwork reviewed before production.
Fluorescent background material increases daytime visibility by converting ultraviolet light into visible light. Retroreflective material returns light toward its source, helping drivers see the wearer at night when headlights illuminate the garment. ANSI high-visibility apparel uses both in specified amounts and placements.
The vest should close correctly, allow safe movement, and remain visible from all sides without excessive loose material that can snag. It must fit over the clothing or outerwear worn on the job. Do not cover the vest with a backpack, jacket, or equipment that defeats its visibility.
Tell us the work environment, required class, quantity, deadline, sizes, and whether you need front or back logo printing. We can help narrow the options before you order.
Standards references: ANSI/ISEA 107-2020 overview from ISEA, 3M's ANSI/ISEA 107-2020 garment Type and Class guide, and FHWA MUTCD 11th Edition, Part 6, Section 6C.05.
Last reviewed July 2026. This guide provides general product-selection information and does not replace a site-specific hazard assessment or an employer, agency, or legal requirement.
