ASME B30.1: Jacks, Inspection Tiers, and OSHA Requirements

ASME B30.1 is the American Society of Mechanical Engineers safety standard that governs jacks, industrial rollers, air-lifting bags, air casters, hydraulic gantries, and strand jack systems, setting requirements for how each is built, marked, operated, inspected, and maintained.¹ It sits within the broader ASME B30 series on lifting equipment. For jacks specifically, federal law adds a parallel layer through OSHA’s 29 CFR 1910.244, which employers must follow regardless of whether they also apply B30.1.²

Equipment Within Scope

The 2020 edition organizes its requirements into separate chapters for each device type. The full list covers mechanical ratchet jacks, hand- or power-operated screw jacks, hand- or power-operated hydraulic jacks, air-lifting bags, industrial rollers, air casters, telescopic hydraulic gantry systems, and strand jack systems.³ Strand jack systems are the newest addition, folded in with the 2020 edition.¹

Jacks lift, lower, or support a load by pushing force; hydraulic versions use pressurized fluid, while mechanical versions rely on ratchet or screw mechanisms. Industrial rollers move heavy loads across a surface. Air-lifting bags are flexible containers inflated with compressed gas, useful in confined spaces where a rigid jack will not fit. Air casters, which work on a different principle, float loads on a thin film of air. Hydraulic gantries are multi-unit lifting systems, usually joined by overhead beams, for exceptionally large loads. Strand jacks grip and pull steel strands hydraulically, and they show up often in bridge construction and heavy plant installations.

Weight capacities and stroke lengths follow the manufacturer’s design specifications for the specific tool, not the standard.

How B30.1 Relates to OSHA Rules

B30.1 is a voluntary consensus standard. OSHA’s jack regulation at 29 CFR 1910.244 carries the force of federal law and applies whether or not an employer chooses to follow B30.1.²

An important boundary: OSHA does not formally incorporate B30.1 by reference. The B30 volumes that OSHA does incorporate are limited to cranes (B30.2 and B30.5) and derricks (B30.6).⁴ For jacks, the two documents overlap but are not identical, and 1910.244 is the enforceable text.

The federal regulation requires that a jack’s rated load capacity be permanently marked in a prominent place by casting, stamping, or another durable method, and operators must confirm the rating is adequate before lifting.² Additional operating requirements from the same section:

If the ground is not firm, block the base of the jack. If the cap could slip, place a block between the cap and the load.
Watch the stop indicator, keep it clean, and never overrun the indicated limit of travel.
Crib, block, or otherwise secure any raised load immediately.
Supply hydraulic jacks with adequate antifreeze when exposed to freezing temperatures.
Tag out-of-order jacks and keep them out of service until repairs are complete.

Inspection Tiers and Frequencies

B30.1 uses the two-tier inspection framework common across the B30 series. Frequent inspections happen before each use or at the start of a shift and target obvious defects such as fluid leaks, damaged hoses, cracked welds, or missing components. Written records are not required for these. Periodic inspections go deeper, examining wheels, load-bearing plates, internal valves, gears, and other components of the whole device.

OSHA sets its own legally enforceable minimums under 29 CFR 1910.244:

Jacks in constant or intermittent use at one location: at least once every six months.
Jacks sent out for special work: inspected when sent out and again when returned.
Jacks subjected to abnormal load or shock: inspected immediately before and immediately after the event.

Repair and replacement parts must also be examined for defects before installation.² The pre-use frequent inspection in B30.1 is stricter than OSHA’s six-month floor, and most safety-conscious employers work to the B30.1 schedule rather than the federal minimum.

Load Handling on the Job

Centering the load over the lifting point comes first. A load that shifts mid-lift can tip the equipment and injure anyone within reach. If the ground or foundation is not firm, blocking goes under the base of the jack before lifting begins.²

Once a load is raised, OSHA requires it to be cribbed, blocked, or otherwise secured immediately. This is one of the most commonly violated requirements in jack operations, often because the jack appears to be holding the load without difficulty. Hydraulic jacks can lose pressure, mechanical jacks can slip, and no jack is designed to hold a load indefinitely without additional support.²

Lowering should be slow, onto permanent supports or the ground, with attention paid to any shift in the center of gravity.

Designated Person vs. Qualified Person

B30.1 draws a distinction the rest of the B30 series shares. A designated person is someone the employer has selected as competent to perform specific duties. A qualified person meets a higher bar: a recognized degree or professional certificate in a relevant field, or knowledge, training, and hands-on experience sufficient to solve problems related to the equipment and its loads.⁵ The distinction matters for higher-stakes decisions such as evaluating whether equipment should be returned to service after a repair, which calls for a qualified person rather than an employer’s designee.

Operator training should be documented. B30.1 expects it, and the records are useful evidence during safety audits or after an incident.

Maintenance, Storage, and Out-of-Service Tagging

Jacks must be lubricated at regular intervals to prevent friction-related wear on moving parts.² Cleaning should clear debris and corrosive substances that could damage hydraulic seals or structural surfaces. Store equipment somewhere dry and temperature-controlled to slow oxidation of metal parts and prevent degradation of hoses and pneumatic bladders.

Replacement parts have to be examined for defects before installation.² Parts that do not meet the manufacturer’s specifications can change the equipment’s rated capacity and void its safety rating. Any defective jack must be tagged out of order and kept out of service until repaired. Logs of inspections, repairs, and part replacements provide a paper trail during audits and after incidents.

Penalties for Noncompliance

An OSHA citation under 29 CFR 1910.244 is the most likely enforcement route for a jack safety failure. Where no specific standard applies, OSHA can instead cite the General Duty Clause, which requires employers to keep workplaces free from recognized hazards likely to cause death or serious physical harm.⁶

As of 2026, OSHA’s inflation-adjusted maximums are:

Serious violation: up to $16,550 per violation.
Willful or repeated violation: up to $165,514 per violation, with a $11,823 minimum for willful violations.
Failure to abate: up to $16,550 per day past the abatement deadline.⁷

An unmarked jack, a missed inspection, and a failure to tag out a defective jack can each be treated as a separate violation. At a facility running multiple jacks across shifts, the totals compound quickly.

1
American Society of Mechanical Engineers. ASME B30.1 – Jacks, Industrial Rollers, Air Casters, and Hydraulic Gantries
2
eCFR. 29 CFR 1910.244 – Other Portable Tools and Equipment
3
American Society of Mechanical Engineers. B30.1 – Jacks, Industrial Rollers, Air Casters, and Hydraulic Gantries
4
Occupational Safety and Health Administration. 29 CFR 1910.6 – Incorporation by Reference
5
American Society of Mechanical Engineers. ASME B30.23-2011 – Personnel Lifting Systems
6
Occupational Safety and Health Administration. OSH Act of 1970 – Section 5 Duties
7
Occupational Safety and Health Administration. 2026 Annual Adjustments to OSHA Civil Penalties