Safety Standards Directory for Definitions
Safety Standards Definitions & Reference Directory
A comprehensive, up-to-date reference guide to USA and Canadian product safety standards - with definitions, governing organizations, and international equivalents. Use this directory to identify which standards apply to high-visibility clothing, flame-resistant garments, PPE, head protection, hand protection, and more.
Last updated: June 2026 | Primary focus: USA & Canada | References: ANSI, OSHA, NFPA, CSA, ISO, EN
Quick-Reference Index by Category
Leading Safety Standards Organizations
Safety standards in the United States and Canada are developed by both governmental and non-governmental organizations. The organizations below create, publish, test, and enforce the standards relevant to workplace safety and personal protective equipment.
ANSI - American National Standards Institute
1899 L Street, NW, 11th Floor, Washington, DC 20036
A 501(c)(3) private, not-for-profit organization, ANSI oversees and publishes United States National Standards. ANSI does not develop standards itself - it accredits hundreds of organizations (such as ISEA, ASSP, and ASTM) that do. ANSI ensures standards are developed through open, consensus-based processes.
ASSP - American Society of Safety Professionals
520 N. Northwest Hwy, Park Ridge, IL 60068 (formerly ASSE, renamed June 2018)
ASSP is the world's oldest professional safety society, founded in 1911 with more than 37,000 members worldwide. It develops key safety standards including the ANSI/ASSP A10 construction safety series and the ANSI/ASSP Z359 fall protection code. ASSP is also the U.S. Technical Advisory Group administrator to ISO on fall protection and safety management systems. Standards formerly labeled ANSI/ASSE are now designated ANSI/ASSP.
ASTM International - formerly American Society for Testing and Materials
100 Barr Harbor Drive, West Conshohocken, PA 19428
One of the world's largest voluntary standards-developing organizations. ASTM's more than 12,000 standards - found in the 80-volume Annual Book of ASTM Standards - cover materials, products, systems and services. Critical ASTM standards include F1506 (arc flash apparel), F1891 (arc-rated rainwear), F2733 (FR rainwear), and F2992 (cut resistance testing).
ATSSA - American Traffic Safety Services Association
15 Riverside Parkway, Suite 100, Fredericksburg, VA 22406
ATSSA represents the road safety, traffic safety, and highway safety industry through legislative advocacy, traffic control safety training, and member partnerships. ATSSA has developed high-visibility guidelines and training materials for roadway work zones in accordance with ANSI/ISEA 107 and FHWA standards.
CEN - European Committee for Standardization
Avenue Marnix 17, B-1000 Brussels, Belgium
CEN develops voluntary standards for 34 European countries. The former EN 471 high-visibility standard has been replaced by EN ISO 20471, aligning European requirements with the ISO international standard. CEN standards are relevant for products imported from or exported to European markets.
CSA Group - Canadian Standards Association
178 Rexdale Blvd., Toronto, ON, Canada M9W 1R3
CSA Group performs testing and certification and develops consensus-based safety standards for Canada and globally. Key standards include CSA Z96-22 (high-visibility safety apparel) and CSA Z462 (workplace electrical safety). CSA is also a Nationally Recognized Testing Laboratory (NRTL) recognized by OSHA.
DOT - U.S. Department of Transportation
1200 New Jersey Ave SE, Washington, DC 20590
The DOT comprises 12 agencies focused on safe, efficient transportation. Agencies relevant to worker safety include the Federal Highway Administration (FHWA), which publishes the MUTCD and the Worker Visibility Rule (23 CFR 634) mandating high-visibility apparel for all workers on federal-aid highway rights-of-way.
FHWA - Federal Highway Administration
U.S. Department of Transportation, Washington, DC 20590
The FHWA provides stewardship over the nation's highways, bridges, and tunnels, and publishes the Manual on Uniform Traffic Control Devices (MUTCD). The FHWA Worker Visibility Final Rule (23 CFR 634) requires all workers on federal-aid highway right-of-way to wear ANSI/ISEA 107-compliant high-visibility apparel.
IEEE-SA - Institute of Electrical and Electronics Engineers Standards Association
3 Park Avenue, 17th Floor, New York, NY 10016
IEEE-SA develops consensus standards through collaborative efforts of members from 160+ countries. The National Electrical Safety Code (NESC), published exclusively by IEEE, sets the ground rules for practical safeguarding of persons during installation, operation, or maintenance of electric supply and communication lines.
ISEA - International Safety Equipment Association
1901 North Moore Street, Arlington, VA 22209
ISEA is the leading association for personal protective equipment and an ANSI-accredited standards developer. ISEA develops the ANSI/ISEA 107 (high visibility), ANSI/ISEA Z89.1 (head protection), ANSI/ISEA 105 (hand protection), ANSI/ISEA Z87.1 (eye and face protection), and many other critical PPE standards used throughout North America.
ISO - International Organization for Standardization
1 ch. de la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland
ISO is an independent, non-governmental membership organization and the world's largest developer of voluntary International Standards. ISO 20471 (high-visibility clothing) is the international equivalent of ANSI/ISEA 107 and forms the basis for the Canadian CSA Z96 and European EN ISO 20471 standards.
NFPA - National Fire Protection Association
1 Batterymarch Park, Quincy, MA 02169
A leading authority on fire prevention and public safety, NFPA develops, publishes, and disseminates more than 300 consensus codes and standards. Key standards include NFPA 70E (electrical safety in the workplace, updated every 3 years - 2024 edition is current), NFPA 2112 (FR garments for flash fire), NFPA 1971 (firefighter protective ensembles), and NFPA 1977 (wildland fire fighting clothing).
NIOSH - National Institute for Occupational Safety and Health
1600 Clifton Road, Atlanta, GA 30329
NIOSH is the U.S. federal agency (part of CDC) that conducts research and makes recommendations to prevent worker injury and illness. NIOSH certifies all respiratory protective devices under 42 CFR Part 84, including N95, N99, P100, and other respirator ratings used across industry.
OSHA - Occupational Safety and Health Administration
U.S. Dept. of Labor, 200 Constitution Ave. NW, Washington, DC 20210
Created by the Occupational Safety and Health Act of 1970, OSHA assures safe and healthful working conditions by setting and enforcing standards and providing training and assistance. OSHA covers most private sector employers and workers in the 50 states, D.C., Puerto Rico, and other U.S. territories. OSHA does not write its own product performance standards - instead it references and enforces ANSI and other consensus standards.
National Work Zone Safety Information Clearinghouse
Managed by ARTBA Transportation Development Foundation
Sponsored by FHWA and managed by the American Road & Transportation Builders Association (ARTBA), this clearinghouse provides comprehensive information and training materials to improve motorist, worker, and pedestrian safety in roadway work zones. Pocket guides and training resources are available at workzonesafety.org.
Nationally Recognized Safety Standards Testing Laboratories (NRTLs)
These organizations are recognized by the U.S. Government (OSHA) to test and certify products to specific safety standards. Manufacturers of safety gear must use accredited organizations like these to market their products with compliance designations. The following are a selection of OSHA-recognized NRTLs relevant to PPE and safety apparel:
CSA Group - Canada/USA
Curtis-Straus LLC (CSL)
FM Approvals LLC (FM)
IAPMO EGSGlobal NRTL
MET Laboratories
NSF International
QAI Laboratories (QAI)
SGS North America (SGS)
Southwest Research Institute
TÃœV Rheinland North America
UL LLC (Underwriters Labs)High Visibility Safety Standards
ANSI/ISEA 107-2020 - American National Standard for High-Visibility Safety Apparel
Current edition: 2020 (5th edition). This is the primary U.S. standard for high-visibility safety apparel (HVSA). It establishes design requirements, performance specifications, and labeling criteria for garments - vests, jackets, shirts, rainwear, coveralls, and pants - used to enhance the conspicuity of workers exposed to vehicular traffic or equipment.
Garments are classified by Type (based on intended use setting - highway/road, off-road, or public safety) and Performance Class (1, 2, or 3, based on amount of fluorescent background material and retroreflective trim). Key updates in the 2020 edition include:
- Added requirements for single-use disposable coveralls (for dirty/hazmat work environments)
- Introduced measurement of nighttime luminance as an optional reporting characteristic
- Removed the accessories category - emphasis shifted to Type and Performance Class designation
- Updated torso coverage requirements and added clarification on 360° retroreflective visibility
- Aligned test methods more closely with international standards (ISO 20471 and CSA Z96)
Codified into law: OSHA references ANSI/ISEA 107 in its PPE regulations, and the FHWA Worker Visibility Rule (23 CFR 634) mandates ANSI/ISEA 107 Performance Class 2 or 3 for all workers on federal-aid highway right-of-way.
International equivalents: CSA Z96-22 (Canada), EN ISO 20471:2013 (Europe/International)
ANSI/ISEA 207-2011 (R2015) - High-Visibility Public Safety Vests
A specialized standard for vests worn by public safety personnel - law enforcement officers, firefighters, EMTs, and incident command personnel - working in or near roadways. ANSI/ISEA 207 addresses the unique tactical needs of public safety workers that ANSI/ISEA 107 does not.
Key differences from ANSI/ISEA 107:
- Applies only to safety vests (not full garments/ensembles)
- Allows for breakaway/tear-away design so vest can be quickly removed if caught on equipment
- Permits belt-mounted equipment access without compromising retroreflective compliance
- Identification panel coloring: red for fire service, blue for law enforcement, green for EMS
Minimum material areas: 450 sq. in. background material; 201 sq. in. retroreflective or combined-performance material. The MUTCD permits law enforcement and emergency responders to wear ANSI/ISEA 207-compliant vests as an alternative to ANSI/ISEA 107 Class 2 or 3 garments when working in the right-of-way.
CSA Z96-22 - High-Visibility Safety Apparel (4th Edition)
Current edition: 2022 (4th edition). CSA Z96-22 is Canada's national standard for high-visibility safety apparel (HVSA). It supersedes the 2015, 2009, and 2002 editions. This edition is designed to be in technical harmony with ANSI/ISEA 107-2020 and ISO 20471.
CSA Z96-22 is considered best practice across Canada and is a regulatory requirement in certain provinces, including Manitoba and British Columbia. Key updates in the 2022 edition include:
- Updated abbreviations and definitions aligned with ANSI/ISEA 107 terminology
- New requirements for bib-style overalls
- Updated reference publications; ASTM and ISO references added
- Added clause titles for improved clarity throughout
- Three classes of garments: Class 1 (low-risk, limited traffic), Class 2 (moderate-risk, roadwork/construction), Class 3 (high-risk, maximum visibility)
Tape placement requirements: Minimum two vertical stripes on the front, one horizontal stripe encircling the waist, and an X pattern on the back. Learn more at csagroup.org.
EN ISO 20471:2013 - High-Visibility Clothing: Test Methods and Requirements
EN ISO 20471 is the international standard for high-visibility clothing, adopted by the European Union and forming the basis for the Canadian CSA Z96 standard. It replaced the former EN 471 standard in 2013 (EN 471-certified garments are no longer compliant). The standard is currently undergoing its routine 5-year review and is expected to be revised.
EN ISO 20471 uses three Classes (1, 2, 3) based on the area of fluorescent and retroreflective material - similar to the ANSI/ISEA 107 Performance Class system. Three approved background colors: yellow, orange-red, and red.
Global equivalents: ANSI/ISEA 107-2020 (USA), CSA Z96-22 (Canada), JIS T 8127:2020 (Japan), AS/NZS 4602.1 (Australia/New Zealand). This standard matters for safety smart gear products that are sourced internationally or sold to workers in multinational operations.
FHWA - 23 CFR Part 634 - Worker Visibility Rule
The Federal Highway Administration's Worker Visibility Final Rule requires that all workers within the right-of-way of a Federal-aid highway who are exposed to traffic or construction equipment must wear high-visibility safety apparel meeting ANSI/ISEA 107 Performance Class 2 or 3.
Exception: Firefighters and emergency responders engaged in operations that directly expose them to flame, fire, heat, or hazardous materials may wear retroreflective turnout gear compliant with NFPA 1971. All other emergency responders working in the right-of-way must wear ANSI/ISEA 107-compliant apparel. See: fhwa.dot.gov
MUTCD - Manual on Uniform Traffic Control Devices
Published by the FHWA, incorporated by DOT, and referenced by OSHA, the MUTCD sets standards for all traffic control devices on U.S. streets and highways. For worker safety apparel, the MUTCD requires all workers within the right-of-way who are exposed to traffic or work vehicles in a Temporary Traffic Control (TTC) zone to wear garments compliant with ANSI/ISEA 107 Performance Class 2 or 3.
Emergency and incident responders are permitted to wear ANSI/ISEA 207-compliant vests as an alternative. The MUTCD also references the ATSSA for roadway work zone safety guidelines and training. See: mutcd.fhwa.dot.gov
Flame Resistant (FR) & Arc Flash Standards
NFPA 70E-2024 - Standard for Electrical Safety in the Workplace
13th Edition (2024). The primary standard for electrical safety in the U.S. workplace, updated every three years. NFPA 70E requires employees to wear arc-rated (AR) and flame-resistant (FR) clothing wherever there is a possible exposure to an electric arc flash. Clothing must meet ASTM F1506 and be rated for the potential energy of the hazard.
Key changes in the 2024 edition:
- New Informative Annex S for assessing the condition of maintenance of electrical equipment
- Point-of-work absence of voltage testing requirements (Section 120.6)
- Mandatory emergency response planning added to electrical job safety planning
- Term "leather protectors" replaced with "protectors" throughout (per ASTM F3258) - material-neutral definition added
- Expanded hearing protection rules within arc-flash boundaries
- All definitions consolidated into Article 100 for improved usability
- Updated labeling requirements for arc flash boundaries (130.5(H)) - label durability now required for environment
Canadian equivalent: CSA Z462. See full standard at nfpa.org.
NFPA 2112 - Standard on FR Garments for Protection Against Flash Fire
Specifies performance requirements and test methods for flame-resistant fabric and garments used to protect industrial workers (oil & gas, petrochemical, chemical processing, utilities) from flash fire exposure. NFPA 2112 is frequently cited alongside OSHA 1910.269 for workers in the energy sector. Garments compliant with NFPA 2112 undergo testing including vertical flame tests and measurements of heat transfer performance.
ASTM F1506 - Standard Performance Specification for FR Textile Materials for Electrical Workers
A core component of the NFPA 70E arc flash protection system. ASTM F1506 establishes minimum performance specifications for clothing used by electrical workers exposed to momentary electric arc and related thermal hazards. The primary requirement is that the fabric must be flame resistant and have been tested to ASTM F1959 to receive an Arc Rating (ATPV - Arc Thermal Performance Value).
The ATPV is expressed in calories per square centimeter (cal/cm²) and found on the garment label (e.g., "ATPV 8.0 cal/cm²"). This is the amount of thermal energy the fabric is rated to withstand. When selecting arc-rated PPE, the ATPV must meet or exceed the incident energy level determined by the arc flash hazard analysis for the specific task.
ASTM F1891 - Standard Specification for Arc and Flame Resistant Rainwear
Establishes applicable test methods, minimum physical and thermal performance criteria, a sizing guide, and purchasing information for rainwear intended for use by workers who may be exposed to thermal hazards from momentary electric arcs and open flames. Distinct from ASTM F2733, which addresses hydrocarbon/petrochemical fire hazards rather than arc flash.
ASTM F2733 - Standard Specification for FR Rainwear for Protection Against Flame Hazards
Covers minimum performance criteria for rainwear used by workers simultaneously exposed to wet weather and hydrocarbon or petrochemical industrial fires. Does not apply to rainwear intended for electric arc flash hazards - see ASTM F1891 for those applications.
CSA Z462 - Workplace Electrical Safety (Canada)
The Canadian equivalent of NFPA 70E. Developed in parallel with the U.S. standard, CSA Z462 provides guidance for Canadian employers on the assessment of electrical hazards, design of safe work spaces around energized systems, and personal protective equipment requirements for workers exposed to arc flash and electrical shock hazards.
NFPA 1971, 1975 & 1977 - Firefighter and Emergency Services Protective Clothing
- NFPA 1971 - Standard on Protective Ensembles for Structural Fire Fighting and Proximity Fire Fighting. Establishes minimum protection from thermal, physical, environmental, and bloodborne pathogen hazards during structural and proximity fire fighting operations.
- NFPA 1975 - Standard on Station/Work Uniforms for Emergency Services. Requires flame-resistant station uniform clothing that will not cause or exacerbate burn injury when worn by emergency services personnel.
- NFPA 1977 - Standard on Protective Clothing and Equipment for Wildland Fire Fighting. Establishes requirements for clothing and equipment protecting personnel performing wildland fire fighting operations from adverse environmental effects.
NFPA 701 - NOT an FR Apparel Standard
NFPA 701 is often mistakenly referenced for safety apparel. This standard applies only to textile materials used in interior furnishings for public buildings (curtains, draperies, wall hangings, awnings, tents, tarps, banners) - not to garments worn by workers. A garment claiming to meet NFPA 701 should not be considered a flame-resistant (FR) garment. NFPA 701 does not establish the flame-resistant properties required for personal protective clothing. When evaluating FR garments, look for NFPA 70E, NFPA 2112, or ASTM F1506 compliance instead.
NESC - National Electrical Safety Code (IEEE)
Published exclusively by IEEE, the NESC sets the ground rules for practical safeguarding of persons during the installation, operation, or maintenance of electric supply and communication lines and associated equipment. It contains the basic provisions considered necessary for the safety of employees and the public under specified conditions. The NESC works in conjunction with NFPA 70E and OSHA 1910.269 for utility workers.
Head Protection Standards
ANSI/ISEA Z89.1-2014 (Reaffirmed 2019) - American National Standard for Industrial Head Protection
Current edition: Z89.1-2014 (Reaffirmed 2019). This standard provides performance and testing requirements for industrial helmets (hard hats and safety helmets). OSHA references this standard in both 29 CFR 1910.135 (general industry) and 29 CFR 1926.100 (construction). If a hard hat does not carry the Z89.1 marking, it does not meet the OSHA requirement.
Helmets are classified along two independent axes:
- Type I - Top-of-head impact protection only
- Type II - Top and lateral (side) impact protection
- Class E (Electrical) - Tested to 20,000 volts (Phase-to-Ground)
- Class G (General) - Tested to 2,200 volts (Phase-to-Ground)
- Class C (Conductive) - No electrical insulation; conductive materials permitted
Optional markings include: LT (Low Temperature, tested to -30°C/-22°F), HV (High Visibility), and Reverse Donning (can be worn brim forward or backward). Most shell replacements are recommended every 5 years; suspension replacements every 1 year, or immediately after damage. Shop hard hats and safety helmets →
OSHA 29 CFR 1910.135 - Head Protection
Requires employers to ensure that each affected employee wears a protective helmet when working in areas where there is a potential for injury to the head from falling objects. Employers must also ensure that helmets designed to reduce electrical shock hazard are worn by employees near exposed electrical conductors that could contact the head. This regulation specifies ANSI/ISEA Z89.1 as the compliance standard. See full text at osha.gov.
Hand Protection Standards
ANSI/ISEA 105-2024 - American National Standard for Hand Protection Classification
Current edition: 2024. ANSI/ISEA 105 addresses the classification and testing of hand and arm protection for mechanical, chemical, and other performance properties. The 2024 edition introduced a standardized Pentagon Marking - an inverted pentagon label showing abrasion, cut, and puncture performance levels in a single, easy-to-read icon.
The cut resistance system (established in the 2016 edition) uses 9 levels (A1-A9) - the industry standard using the TDM-100 machine per ASTM F2992:
- Light (A1-A3): 200-1,499 grams - material handling, packaging, light assembly
- Medium (A4-A6): 1,500â-3,999 grams - automotive, glass handling, metal fabrication
- Heavy (A7-A9): 4,000+ grams - recycling, meat processing, saw operations
European equivalent: EN 388 (uses A-F scale). The two scales are not directly comparable. For U.S. workplaces, ANSI/ISEA 105 is the applicable standard. Shop cut-resistant and work gloves →
Eye & Face Protection Standards
ANSI/ISEA Z87.1-2020 - Occupational and Educational Eye and Face Protection Devices
Current edition: 2020. Establishes performance criteria and testing requirements for devices used to protect the eyes and face in workplaces and schools from impact, non-ionizing radiation, and chemical exposure. Covers spectacles, eyewear, goggles, face shields, welding helmets, and full facepiece respirators.
Markings on compliant eyewear include the manufacturer's identifier, lens classification, optical quality, and impact rating:
- Z87 - Basic impact (dropball test)
- Z87+ - High impact (high-velocity test) - required in most industrial environments
- Additional markings for UV protection, IR (infrared), variable tint, limited use, and prescription lenses
Fall Protection Standards
ANSI/ASSP Z359 Series - Fall Protection Code
The ANSI/ASSP Z359 series (formerly ANSI/ASSE Z359) is the comprehensive fall protection code covering definitions, systems, components, and program management. Note: Standards formerly labeled ANSI/ASSE are now designated ANSI/ASSP following the 2018 name change. Key standards in the series:
- Z359.0 - Definitions and Nomenclature for Fall Protection and Fall Arrest
- Z359.1 - Safety Requirements for Personal Fall Arrest Systems, Subsystems and Components
- Z359.2 - Minimum Requirements for a Comprehensive Managed Fall Protection Program
- Z359.3 - Safety Requirements for Positioning and Travel Restraint Systems
- Z359.4 - Safety Requirements for Assisted-Rescue and Self-Rescue Systems
- Z359.6 - Specifications and Design Requirements for Active Fall Protection Systems
- Z359.7 - Qualification and Verification Testing of Fall Protection Products
- Z359.12 - Connecting Components for Personal Fall Arrest Systems
- Z359.13 - Personal Energy Absorbers and Energy Absorbing Lanyards
- Z359.14 - Safety Requirements for Self-Retracting Devices for Personal Fall Arrest and Rescue Systems
ANSI/ASSP A10 Series - Safety in Construction and Demolition Operations
The A10 series (formerly ANSI/ASSE A10, now ANSI/ASSP A10) covers safety requirements for construction and demolition operations across dozens of subtopics. Key standards relevant to protective apparel and PPE include:
- A10.32 - Personal Fall Protection Used in Construction and Demolition
- A10.33 - Safety and Health Program Requirements for Multi-Employer Projects
- A10.46 - Hearing Loss Prevention in Construction
- A10.47 - Highway Construction Safety
- A10.38 - Basic Elements of a Program to Provide a Safe Work Environment
For full series details, visit assp.org.
Respiratory Protection Standards
ANSI/ISEA Z88 - American National Standard for Respiratory Protection
This standard sets forth accepted practices for respirator users and provides guidance on the proper selection, use, and care of respirators. It also contains requirements for establishing and regulating respirator programs in the workplace, including medical evaluation requirements, fit testing, and training. Works in conjunction with OSHA 29 CFR 1910.134 (the OSHA respiratory protection standard).
NIOSH 42 CFR Part 84 - Approval of Respiratory Protective Devices
NIOSH certification establishes performance, testing, and inspection requirements for respiratory protective devices. All NIOSH-approved respirators carry an approval number (TC-84A-XXXX). The particulate filter classification system under 42 CFR 84.170:
- N-series - Not resistant to oil aerosols (N95, N99, N100)
- R-series - Resistant to oil aerosols, single shift use (R95, R99, R100)
- P-series - Oil-proof, extended use permitted (P95, P99, P100)
- 95-rated: 95% filtration efficiency
- 99-rated: 99% filtration efficiency
- 100-rated (HEPA): 99.97% filtration efficiency
Chemical, Disposable Garments & Insulating Apparel Standards
ANSI/ISEA 101 - Limited-Use and Disposable Coveralls
Provides minimum size, packaging, and labeling requirements for limited-use and disposable coveralls. Includes a sizing chart (XS through 6XL) to accommodate a wide range of workers in grain/milling, automotive, painting, dry chemical, abrasive blasting, food processing, and construction environments.
ANSI/ISEA 103 - Chemical Protective Clothing Classification and Performance
Provides manufacturers, users, specifiers, and regulators with a system to match a protective garment to a chemical hazard environment. ANSI/ISEA 103 addresses the protective apparel needs of workers who require daily protection from chemical hazards - not just in emergency situations. This standard aligns with European (CEN) and international (ISO) chemical protective clothing standards, representing an effort to harmonize testing and labeling of chemical protective clothing worldwide.
ANSI/ISEA 201 - Classification of Insulating Apparel for Cold Work Environments
A voluntary consensus standard that serves as a rating tool for insulative garments, helping workers, purchasers, and specifiers select clothing that meets insulation needs in cold work environments. The standard provides a framework for comparing the thermal resistance of different garments, expressed as a CLO value (a unit of thermal resistance).
Key OSHA Regulations for PPE & Safety Apparel
OSHA 29 CFR 1910 - General Industry Standards
Workplace safety standards for all of the U.S. and its territories. Covers all non-construction workplaces. See osha.gov
OSHA 29 CFR 1910.269 - Electric Power Generation (The "269" Standard)
Requires training on electric arc hazards and prohibits clothing that could ignite or melt on the skin. Prohibits garments made entirely or blended with acetate, nylon, polyester, or rayon when exposed to arc flash. Employers must determine whether each worker's clothing is acceptable for their potential exposure.
OSHA 29 CFR 1910.135 - Head Protection
Requires protective helmets where there is potential for head injury from falling objects. Specifies ANSI/ISEA Z89.1 as the compliance standard. Electrically rated helmets required near exposed electrical conductors.
OSHA 29 CFR 1910.94 - Ventilation (Respiratory)
Covers respiratory protection for abrasive blasting, cutting, grinding, spraying and spray finishing. Requires use of NIOSH-approved respirators (42 CFR Part 84) for protection from hazardous operations.
OSHA 29 CFR 1926 - Safety and Health Regulations for Construction
OSHA's construction safety standards. References the MUTCD for work zone compliance. Subparts cover PPE, fall protection, signs/signals/barricades, and hazard communication.
OSHA 29 CFR 1926 Subpart E - Personal Protective and Life Saving Equipment
Requires that PPE for eyes, face, head, and extremities, plus protective clothing and respiratory devices, be provided, used, and maintained wherever necessary due to hazards encountered in the workplace.
OSHA 29 CFR 1926 Subpart G - Signs, Signals & Barricades
Covers work zone safety and traffic control in construction. References the MUTCD for compliance guidance on worker safety and signage on roadways.
OSHA 29 CFR 1926 Subpart M - Fall Protection
Sets requirements and criteria for fall protection in construction workplaces. Works in conjunction with the ANSI/ASSP Z359 series. See full text at osha.gov.
OSHA 29 CFR 1926.353 - Ventilation and Protection in Welding, Cutting & Heating
Addresses filter-type respirators, face shields, screens, and eye, head and skin protection specific to welding. References 29 CFR 1926 Subpart E for overarching PPE requirements.
Understanding ANSI Hi-Vis Performance Classes
Under ANSI/ISEA 107-2020, garments are classified by Type (O=Off-road, R=Road/Highway, P=Public Safety) and Performance Class (1, 2, or 3). The Performance Class determines the minimum area of fluorescent background material and retroreflective trim. Class E (formerly "Performance Class E") refers specifically to compliant pants or shorts that, when combined with a Class 2 garment, create a Class 3 ensemble.
Performance Class 1
Not permitted on U.S. public roadways. Class 1 apparel blends too readily into many work environments to provide adequate protection from traffic.
- Background material: 217 sq. in. min.
- Retroreflective material: 155 sq. in. min.
Suitable for: off-road environments with equipment hazards, warehouses with slow-moving vehicles, parking lots.
Performance Class 2
Minimum required for all workers on U.S. federal-aid highway right-of-way. Provides better visibility than Class 1 through additional torso coverage.
- Background material: 755 sq. in. min.
- Retroreflective material: 201 sq. in. min.
Typical use: Mowing, inspection, maintenance, road signage, surveying, utility operations, toll collection, incident response.
Performance Class 3
Maximum visibility - required for complex work zones, high-speed roads, and nighttime work. Visibility through a full range of body movements at a minimum ¼ mile (1,280 feet). Must include sleeves and/or trousers.
- Background material: 1,240 sq. in. min.
- Retroreflective material: 310 sq. in. min.
Typical use: Flagging, traffic control setup/removal, construction, nighttime emergency response, highway crews.
Performance Class E (Pants/Shorts)
Not worn alone - must be paired with a Class 2 or Class 3 garment. When combined with a Class 2 vest or jacket, the ensemble qualifies as a Class 3 ensemble.
- Background material: 465 sq. in. min.
- Retroreflective material: 108 sq. in. min.
Waistband trousers or shorts with fluorescent background and retroreflective trim on the legs. Shop Class E pants
Public Safety Apparel (ANSI/ISEA 207)
Designed for fire service, EMS, and law enforcement personnel responding to incidents on or near roadways. ANSI/ISEA 207-compliant vests provide conspicuity while allowing access to belt-mounted equipment, and include tear-away shoulders for quick release if caught on equipment.
- Minimum background material: 450 sq. in.
- Minimum retroreflective material: 201 sq. in.
- Identification panel colors: Red (fire service), Blue (law enforcement), Green (EMS)