Postal work is physically demanding, and the injury numbers reflect it. Workers’ compensation data from 2007 to 2019 shows that slips, trips, and falls account for nearly 31% of all federal and postal worker injury claims, followed by overexertion injuries at about 24%. The good news is that most of these injuries are preventable with the right habits, gear, and awareness throughout your shift.
Slips, Trips, and Falls
Nearly one in three postal injury claims involves a slip, trip, or fall. For letter carriers, the risk spikes in winter (icy walkways, snow-covered steps) and during rainy seasons when surfaces are slick. But falls also happen in dry conditions: uneven sidewalks, cluttered porches, loose gravel, and poorly lit stairways all contribute.
Footwear is your first line of defense. USPS requires carriers to wear safety footwear that meets protective standards set by ASTM (the organization that tests materials and equipment). Look for shoes with slip-resistant outsoles, good ankle support, and soles that still grip when wet. Replace them before the tread wears smooth. Many carriers find that rubber-soled boots with deep lugs handle the widest range of conditions.
Beyond footwear, scan every walking surface before you step on it. On icy days, shorten your stride and walk flat-footed to keep your center of gravity over your feet. Use handrails on stairs whenever they’re available. If a customer’s walkway is dangerously icy or obstructed, you can hold the mail and leave a notice rather than risk a fall.
Overexertion and Lifting Injuries
Overexertion is the second most common injury category, making up about 24% of claims. These injuries happen when you lift parcels that are heavier than expected, twist while carrying a loaded satchel, or push through fatigue late in a shift.
When lifting packages, keep them close to your body and bend at the knees rather than the waist. Test a parcel’s weight before committing to a full lift. If a package is over 70 pounds or awkwardly shaped, get help or use a hand truck. Carriers who load their satchels unevenly often develop shoulder and back pain over time, so distribute weight as symmetrically as you can and switch shoulders periodically.
For clerks and mail processors working at sorting stations, repetitive motions create a different kind of overexertion risk. Occupational health guidelines recommend taking a 5 to 10 minute break for every hour spent at a workstation. During that break, stand up and walk if possible, or at minimum change your body position. Varying your tasks throughout the shift, rather than doing the same sorting motion for hours straight, significantly reduces strain on your joints and soft tissues.
Simple Stretches That Help
Stretching during breaks keeps muscles loose and reduces the cumulative strain that leads to repetitive injuries. Open and close your fists several times to relieve hand tension. Roll your shoulders forward and backward. Gently tilt your head side to side to release neck tightness. Hold each stretch for 10 to 20 seconds, breathe normally, and never push to the point of pain. These small habits add up over a career.
Dog Encounters on the Route
Animal attacks account for a notable share of the “violence and other injuries” category, which makes up about 9% of postal injury claims. The USPS Postal Bulletin lays out a clear protocol for dealing with aggressive dogs, and it runs counter to most people’s instincts.
If a dog threatens you, do not scream and do not run. Running triggers a chase response. Instead, remain still, avoid direct eye contact, and place your satchel or backpack between yourself and the animal. Once the dog calms down, back away slowly while still facing it. Never turn your back on the dog, because even a frightened animal may bite unexpectedly if you look away.
If you know a particular address has a loose, aggressive dog, note it and report it to your supervisor. You’re not required to deliver to an address where a dog poses a genuine threat. Many carriers also find it helpful to talk to homeowners directly and ask them to secure their pet during delivery times.
Vehicle Safety
Transportation incidents make up about 4% of postal injury claims, but they tend to be more severe when they happen. Carriers who drive Long Life Vehicles (LLVs) or other postal trucks face a unique set of risks, from mounting and dismounting dozens of times a day to navigating tight residential streets.
Before leaving the parking lot each morning, complete the daily vehicle safety check outlined in USPS Notice 76. This covers brakes, mirrors, lights, steering, and other basics that are easy to skip when you’re in a hurry but critical for catching problems before they become emergencies. While driving an LLV, you must wear both the lap belt and shoulder belt whenever the vehicle is in motion. The only exception is when the shoulder belt prevents you from reaching curbside mailboxes, in which case you may unfasten the shoulder belt but must keep the lap belt buckled at all times.
Getting in and out of the vehicle is itself a common injury point. Always face the vehicle when stepping down, use the grab handles, and make sure your footing is secure before shifting your weight. Jumping out of the cab, especially when carrying a parcel, is one of the fastest ways to sprain an ankle or twist a knee.
Heat and Cold Exposure
Carriers spend entire shifts outdoors, which means heat illness in summer and cold-related injuries in winter are real occupational hazards. Under the General Duty Clause of the Occupational Safety and Health Act, your employer is legally obligated to protect you from recognized hazards, including heat-related dangers, when a feasible way to reduce the risk exists.
In hot weather, drink water before you feel thirsty. Carry more than you think you’ll need. Watch for early warning signs of heat exhaustion: heavy sweating followed by a sudden stop in sweating, dizziness, nausea, headache, or confusion. If any of these hit, get to shade, drink water, and contact your supervisor. Heat illness can escalate quickly from uncomfortable to life-threatening.
In cold weather, layering is more effective than one heavy coat because you can shed layers as your body warms during physical activity. Protect your extremities first: insulated gloves, wool socks, and a hat that covers your ears. Frostbite can set in on exposed skin within minutes when wind chill drops low enough.
Reporting Hazards Early
Many injuries happen because a known hazard went unreported. The USPS provides PS Form 1767 specifically for this purpose. Any employee can use it to report unsafe conditions, whether that’s a broken handrail at the office, a recurring dog problem on a route, or a vehicle with faulty brakes. Supervisors are required to keep a supply of these forms in the workplace, and you can submit one anonymously if you prefer.
Filing a report creates a paper trail that prompts management to investigate and take corrective action. It also protects you: if you’re injured by a hazard you previously reported, that documentation matters. Don’t assume someone else has already flagged the problem. If you see something unsafe, write it up. The few minutes it takes could prevent a serious injury for you or a coworker.