Overhead and Gantry Cranes is the OSHA general industry standard, 29 CFR 1910.179, that governs the design, inspection, testing, maintenance and operation of overhead and gantry cranes. It protects crane operators, riggers and everyone working in the plant or yard below a suspended load.
Overhead cranes are a fixture in steel service centers, fabrication shops, foundries, paper mills, warehouses and maintenance bays. When they fail, the results are severe: dropped loads, struck-by injuries and crushing. The standard addresses those hazards through layered inspections, load limits, maintenance lockout and clear rules for handling loads.
What Is the OSHA Overhead and Gantry Crane Standard?
The standard is codified at 29 CFR 1910.179, in Subpart N (Materials Handling and Storage) of OSHA's general industry rules. Under 1910.179(b)(1), it applies to overhead and gantry cranes, including semigantry, cantilever gantry, wall cranes, storage bridge cranes and others with the same fundamental characteristics. These cranes have a hoisting mechanism that is integral to the crane and move loads horizontally on a bridge, trolley or runway.
The standard covers:
- General requirements (b): design, modification, rated load marking, clearances and designated operators.
- Equipment rules (c) to (i): cabs, footwalks and ladders, stops and bumpers, guards, brakes, electrical equipment and hoisting equipment.
- Inspection (j): frequent and periodic inspections and cranes not in regular use.
- Testing (k) and maintenance (l).
- Rope inspection (m) and handling the load (n).
Who Must Comply?
Any general industry employer whose employees operate, inspect, maintain or work around overhead or gantry cranes must comply. Under 1910.179(b)(2), cranes constructed and installed on or after August 31, 1971 must meet the design specifications of ANSI B30.2.0-1967, Safety Code for Overhead and Gantry Cranes.
Overhead and gantry cranes used in construction are covered by 29 CFR 1926 Subpart CC instead. See Cranes and Derricks in Construction for those rules. In states with an OSHA-approved State Plan, the state's rules apply and may be stricter.
Key Requirements
Rated load marking
Under 1910.179(b)(5), the rated load of the crane must be plainly marked on each side of the crane. If the crane has more than one hoisting unit, each hoist must have its rated load marked on it or its load block, and the marking must be legible from the ground or floor.
Modifications
Under 1910.179(b)(3), a crane may be modified and rerated only if the modification and the supporting structure are checked thoroughly for the new rated load by a qualified engineer or the equipment manufacturer. The modified crane must then be tested under the load test provisions in paragraph (k)(2).
Designated operators
1910.179(b)(8) allows only designated personnel to operate a crane covered by the standard. The standard does not set a formal certification requirement for overhead crane operators, so employers should train and evaluate operators on the specific crane and keep records of who is designated.
Clearances
Under 1910.179(b)(6), the clearance between the crane and overhead obstructions must be at least 3 inches, and the lateral clearance from obstructions at least 2 inches.
Inspection Requirements
1910.179(j)(1) divides inspections into two classes, based on how often a component needs to be checked:
- Frequent inspections: daily to monthly intervals.
- Periodic inspections: 1 to 12 month intervals.
Frequent inspection items
Under 1910.179(j)(2), frequent inspections cover:
- All functional operating mechanisms for maladjustment that interferes with proper operation, daily.
- Deterioration or leakage in lines, tanks, valves, pumps and other parts of air or hydraulic systems, daily.
- Hooks with deformation or cracks. Visual inspection is daily, with a monthly inspection and a certification record that includes the date, the signature of the person who inspected the hook and an identifier for the hook.
- Hoist chains, including end connections, for excessive wear, twist, distorted links or stretch beyond the manufacturer's recommendations. Visual inspection is daily, with a monthly inspection and certification record.
- All functional operating mechanisms for excessive wear of components.
- Rope reeving for noncompliance with the manufacturer's recommendations.
Periodic inspection items
Under 1910.179(j)(3), periodic inspections include the frequent inspection items plus deformed, cracked or corroded members, loose bolts or rivets, cracked or worn sheaves and drums, worn or cracked parts such as pins, bearings and shafts, excessive wear on brake system parts, inaccurate indicators, power plant performance, excessive wear of chain drive sprockets and chain stretch, and deterioration of electrical apparatus such as controllers, master switches and push button stations.
Cranes not in regular use
A crane idle for 1 month or more but less than 6 months must receive the frequent inspection and a rope inspection before being placed in service. A crane idle for 6 months or more must receive a complete inspection under both (j)(2) and (j)(3), plus a rope inspection. Standby cranes must be inspected at least semiannually.
Rope inspection
Under 1910.179(m)(1), a thorough inspection of all running ropes must be made at least once a month, with a certification record that includes the date, the signature of the person who performed the inspection and an identifier for the rope. Rope that has been idle for a month or more must be thoroughly inspected by an appointed person before it is used.
Testing and Maintenance
New and altered cranes must be tested before initial use. The operational test covers hoisting and lowering, trolley and bridge travel, and limit switches, locking and safety devices. Under 1910.179(k)(2), test loads must not be more than 125 percent of the rated load unless the manufacturer recommends otherwise, and test reports must be kept on file where they are readily available to appointed personnel.
1910.179(l)(1) requires a preventive maintenance program based on the manufacturer's recommendations. Before adjustments and repairs, the crane must be moved to a location where it will cause the least interference with other cranes and operations, all controllers must be placed in the off position, the main or emergency switch must be opened and locked in the open position, and warning or "out of order" signs must be placed on the crane and on the floor. Where other cranes run on the same runway, rail stops or other means must protect the repair crew. Energy control should follow the lockout/tagout standard. The crane may not be returned to service until guards are reinstalled, safety devices reactivated and maintenance equipment removed.
Handling the Load
- The crane may not be loaded beyond its rated load except for test loads under paragraph (k).
- The hoist chain or rope must be free of kinks and twists and may not be wrapped around the load. The load must be attached to the hook by slings or other approved devices.
- Operators must avoid carrying loads over people.
- When a load approaches the rated load, the operator must test the brakes by raising the load a few inches and applying them.
- The load may not be lowered below the point where fewer than two full wraps of rope remain on the drum.
- The warning signal must be sounded when starting the bridge and when the load or hook approaches people.
- At the beginning of each operator's shift, the upper limit switch of each hoist must be tried out under no load.
Common Violations and Penalties
- Missing certification records. No monthly records for hooks, hoist chains or running ropes.
- Unmarked rated loads. Capacity not marked on the crane or on each hoist.
- Damaged hooks and ropes left in service. Cracked or deformed hooks or worn rope found during inspection but not corrected.
- Undesignated operators. Anyone allowed to run the pendant without training.
- Loads over people. Carrying loads over workers on the floor.
- Maintenance without lockout. Repairs with the main switch not opened and locked.
For 2026, OSHA's maximum civil penalties are $16,550 per serious or other-than-serious violation and $165,514 per willful or repeated violation. Amounts are adjusted for inflation, so check OSHA's penalties page for current figures. States with OSHA-approved State Plans set their own amounts.
How to Comply: Step by Step
- Inventory cranes and hoists. Record each crane, its rated load, service conditions and the manufacturer's recommendations.
- Mark rated loads. Confirm capacity markings on both sides of each crane and on every hoist or load block.
- Designate and train operators. Train operators on the specific crane, the load handling rules and the shift-start limit switch check.
- Set the inspection schedule. Build daily, monthly and periodic checklists and assign inspectors.
- Certify monthly inspections. Record date, signature and identifier for hooks, chains and ropes.
- Run preventive maintenance. Follow the manufacturer's program and lock out the main switch before repairs.
- Test new and altered cranes. Keep load test reports on file.
- Correct defects. Remove unsafe cranes from service and track repairs to closure.
How SMS360 Helps
SMS360's Audits & Inspections module turns crane inspections into digital checklists that operators and maintenance staff can complete on a mobile device. Daily, monthly and periodic inspections can be scheduled with reminders, and each completed checklist stores the date, inspector and equipment identifier needed for certification records. Failed items can be converted into corrective actions with owners and due dates, so damaged hooks or worn rope are tracked until repaired, and audit history is available for an OSHA inspection.
Frequently Asked Questions
How often do overhead cranes need to be inspected?
OSHA requires frequent inspections at daily to monthly intervals and periodic inspections at 1 to 12 month intervals, depending on the component. Hooks and hoist chains need daily visual checks and a monthly certified inspection, and running ropes need a thorough inspection at least once a month with a certification record.
Does OSHA require overhead crane operators to be certified?
No formal certification is required under 1910.179. Only designated personnel may operate the crane, so employers should train operators, evaluate them on the specific equipment and keep records of who is designated. Overhead cranes used in construction follow the operator requirements in Subpart CC.
What is the maximum load test for an overhead crane?
Test loads may not be more than 125 percent of the rated load unless the manufacturer recommends otherwise. New and altered cranes must be tested before initial use, and test reports must be kept on file.
What must an operator check at the start of each shift?
At the beginning of each operator's shift, the upper limit switch of each hoist must be tried out under no load. Daily frequent inspection items, such as operating mechanisms, hooks and hoist chains, should also be checked.
