Clear exit routes and egress paths

OSHA regulations (29 CFR 1910.37) require that all exit routes remain free and unobstructed at all times. NFPA 101 Life Safety Code reinforces this by emphasizing clear egress paths and proper door operation during emergencies. In winter, snow and ice can quickly compromise these requirements, making it critical to plan ahead.

Design requirements

OSHA’s minimum width requirement of 28 inches applies to the structural component of a permanent exit route. This means the physical design of the exit must meet that standard. However, OSHA also states that exit routes must be “free and unobstructed,” which is where snow and ice become a compliance issue. Even if the structure meets the 28-inch requirement, accumulated snow or ice that narrows the path or blocks access violates OSHA’s intent for safe egress.

NFPA often requires wider exit route dimensions than OSHA’s minimum, especially in facilities with higher occupancy or specific hazards. Because local building codes or municipal regulations may adopt NFPA standards or even stricter rules, it is recommended to verify with your Authority Having Jurisdiction (AHJ) to ensure compliance with any additional requirements.

Performance requirements

Exit doors must open easily without special tools or excessive force, as required by OSHA and NFPA standards. Winter conditions can also compromise this requirement. Snow plowed against exterior doors, frozen gates or crash bars, narrowed sidewalks, and temporary storage of salt bags or heaters near exits can obstruct pathways and delay evacuation. Slippery outdoor stairways and walkways add further risk to safe workplace exiting.

Lighting is equally important. Emergency lights and exit signs must remain visible and functional, but snowbanks, ice buildup, or temporary coverings can block them, creating unsafe conditions and violating regulations. Recommended actions to minimize these hazards can include:

• Inspecting all walkways and exits after snow and ice weather events.
• Removing snow and ice promptly and applying de-icing agents.
• Keeping snow removal supplies and equipment away from exits and walking paths.
• Documenting inspections and corrective actions in a safety log.

Emergency action planning

OSHA requires in 29 CFR 1910.38 that workplaces with 10 or more employees maintain a written Emergency Action Plan (EAP). The EAP should clearly outline procedures for reporting emergencies, evacuation routes, and employee responsibilities including cold weather emergencies for organizations exposed to winter weather climates.

To prepare for winter weather emergencies, start by reviewing your existing plan and adding contingencies for snow and ice. Identify primary and secondary evacuation routes and ensure they remain accessible even during severe storms. Include procedures for clearing snow from exits and walkways and assign specific personnel to each task. Backup lighting should be addressed in case of power outages, and emergency communication systems should be tested regularly to ensure functionality in cold conditions.

Consider adding steps for shelter-in-place situations caused by blizzards or extreme cold. Provide guidance on maintaining indoor heat safely and ventilation for preventing carbon monoxide exposure from temporary heating devices.

OSHA also emphasizes the importance of training and communication as part of an effective emergency preparedness program. Employees must understand evacuation procedures, know their roles during an emergency, and be familiar with winter-specific hazards. This includes recognizing slip hazards, practicing safe walking techniques, and proper use of personal protective equipment.

Supervisors should go beyond basic instruction by conducting seasonal safety meetings that cover winter-specific risks. Training should explain the importance of maintaining clear exits, snow and ice removal priorities, and what steps employees should take if they notice blocked exit routes. Communication tools such as signage, email alerts, and mobile notifications can reinforce these messages during severe weather events. Effective communication ensures employees remain aware of changing conditions and know how to respond quickly and safely.

Key to remember: Winter weather can delay evacuations, so planning ahead is essential. Proactive inspections, updated emergency plans, and training are your best defense against winter hazards like blocked exits and frozen doors.