OSHA 30 Maritime study materials
OSHA 30 Maritime study resources

OSHA 30 Maritime key terms

OSHA 30 Maritime · Get comfortable with the vocabulary.

Occupational Safety and Health Act of 1970

The federal law that created OSHA and gave the agency authority to set and enforce workplace safety standards. It covers most private employers, including shipyards, marine terminals, and longshoring operations, and grants workers specific protection rights.

Related: OSH Act Section 5(a)(1), OSHA Maritime Standards (29 CFR 1915-1918)
OSH Act Section 5(a)(1)

The General Duty Clause. It requires employers to furnish a workplace free from recognized hazards likely to cause death or serious physical harm, even when no specific standard addresses that hazard. It is used when no exact rule applies.

Related: Recognized Hazard, OSHA Maritime Standards (29 CFR 1915-1918)
OSHA Maritime Standards (29 CFR 1915-1918)

The four sets of OSHA rules for maritime work: 1915 for shipyard employment, 1917 for marine terminals, 1918 for longshoring, and 1919 for commercial diving. Each part lists required safeguards, training, and equipment for that type of work.

Related: Shipyard Employment, Marine Terminal, Longshoring
Shipyard Employment

Work covered by 29 CFR 1915, including shipbuilding, ship repair, shipbreaking, and related activities such as scaling, painting, and rigging on vessels. It applies to shipyard employees and to other workers exposed to shipyard hazards.

Related: OSHA Maritime Standards (29 CFR 1915-1918), Confined Space (Shipyard)
Marine Terminal

A wharf, pier, or similar structure where vessels load and unload cargo. The term also covers adjacent areas used for handling freight, including buildings, sheds, and rail or truck loading areas, which fall under 29 CFR 1917.

Related: Longshoring, Cargo Handling Gear
Longshoring

The loading, unloading, moving, and handling of cargo aboard vessels and on adjacent piers, under 29 CFR 1918. It includes work with cranes, slings, and cargo gear, and covers hazards from suspended loads, falls, and moving equipment.

Related: Marine Terminal, Cargo Handling Gear, Sling and Rigging Inspection
Competent Person

A person who can identify existing and predictable hazards in the surroundings or working conditions and who has authority to take prompt corrective measures to eliminate them. Many maritime standards require inspections or decisions by a competent person.

Related: Qualified Person, Hazard Abatement
Qualified Person

A person who, by possession of a recognized degree, certificate, or professional standing, or by extensive knowledge, training, and experience, has demonstrated the ability to solve or resolve problems relating to a specific subject or work.

Related: Competent Person
Hazard Recognition

The process of identifying conditions or practices in the workplace that could cause injury, illness, or damage. It relies on walkaround inspections, job hazard analysis, incident review, and worker reports before an accident occurs.

Related: Job Hazard Analysis, Hazard Abatement, Near Miss
Hazard Abatement

The action taken to eliminate or control a hazard, such as removing it, guarding it, changing procedures, or supplying protective equipment. Abatement should be prompt and documented, and interim controls are used until a permanent fix is in place.

Related: Hierarchy of Controls, Competent Person
Hierarchy of Controls

A ranked approach to reducing risk, from most to least effective: elimination, substitution, engineering controls, administrative controls, and personal protective equipment. Maritime employers should try higher-level controls before relying on PPE or procedures alone.

Related: Hazard Abatement, Personal Protective Equipment (PPE)
Job Hazard Analysis

A step-by-step review of a task that identifies hazards in each step and the controls needed to reduce them. It is often used before new or non-routine maritime work, such as rigging a heavy lift or entering a tank.

Related: Hazard Recognition, Confined Space (Shipyard)
Personal Protective Equipment (PPE)

Equipment worn or used by a worker to reduce exposure to hazards, such as hard hats, safety glasses, gloves, respirators, and fall protection. Employers must provide required PPE at no cost and ensure it fits and is maintained.

Related: Hierarchy of Controls, Fall Protection
Fall Protection

Systems and practices that prevent falls from heights or arrest them safely, including guardrails, safety nets, personal fall arrest systems, and safe access ladders. Maritime work near hatch openings, scaffolds, and vessel edges requires fall protection.

Related: Personal Protective Equipment (PPE), Lifeline and Anchorage Point
Lifeline and Anchorage Point

A lifeline is a flexible line used to connect a worker's harness to an anchor. An anchorage point is the secure structure to which the system attaches. Both must be inspected and strong enough to withstand fall forces.

Related: Fall Protection
Confined Space (Shipyard)

An enclosed or partially enclosed space with limited entry and exit, not designed for continuous occupancy, such as a tank, void, or hold. Shipyard rules require testing, ventilation, attendant monitoring, and permits before entry.

Related: Atmospheric Testing, Permit-Required Confined Space
Permit-Required Confined Space

A confined space that contains or may contain a hazardous atmosphere, engulfment, or other serious safety or health hazard. Entry requires a written permit, pre-entry testing, an attendant, and rescue arrangements.

Related: Confined Space (Shipyard), Atmospheric Testing
Atmospheric Testing

Measuring the air inside a space for oxygen content, flammable gases or vapors, and toxic substances before and during entry. Testing must be done by a qualified person with calibrated instruments, and results must be recorded.

Related: Confined Space (Shipyard), Permit-Required Confined Space
Lockout/Tagout

A procedure for isolating hazardous energy, such as electricity, steam, or hydraulic pressure, before servicing equipment. Workers apply locks and tags to energy-isolating devices so machinery cannot start or release stored energy unexpectedly.

Related: Stored Energy, Hazard Abatement
Stored Energy

Energy held in a system after its main power source is shut off, such as pressure in a line, tension in a spring, or a suspended load. It must be released or blocked before work begins to prevent sudden movement or release.

Related: Lockout/Tagout
Cargo Handling Gear

Equipment used to lift, move, or secure cargo, including cranes, derricks, winches, slings, shackles, and hooks. It must be inspected, rated for the load, and used within its safe working limits.

Related: Sling and Rigging Inspection, Safe Working Load
Sling and Rigging Inspection

A required check of slings, shackles, hooks, and other rigging before use to find damage, wear, or missing tags. Defective gear must be removed from service, and inspections are often documented by a competent person.

Related: Cargo Handling Gear, Safe Working Load, Competent Person
Safe Working Load

The maximum load a piece of lifting equipment or rigging is designed to handle safely under normal conditions. It is marked on the gear, and exceeding it can cause failure, dropped loads, and serious injury.

Related: Cargo Handling Gear, Sling and Rigging Inspection
Fall Overboard and Water Hazard

The risk of a worker falling into water at a pier, barge, or vessel. Controls include guardrails, life rings, retrieval equipment, and personal flotation devices where required, plus a rescue plan.

Related: Personal Flotation Device, Marine Terminal
Personal Flotation Device

A Coast Guard-approved life jacket or buoyant vest worn to keep a worker afloat if they fall into water. It must fit properly, be in good condition, and be worn where the standard or employer requires it.

Related: Fall Overboard and Water Hazard
Hazard Communication

The OSHA requirement to inform workers about chemical hazards through labels, safety data sheets, and training. Maritime workers encounter paints, solvents, fuels, and cleaning agents that require this information and proper handling.

Related: Safety Data Sheet, Personal Protective Equipment (PPE)
Safety Data Sheet

A document that describes a chemical's hazards, safe handling, first aid, and protective measures. Employers must keep these sheets accessible to workers, and workers should review them before using an unfamiliar product.

Related: Hazard Communication
Near Miss

An unplanned event that did not cause injury or damage but had the potential to do so. Reporting and investigating near misses helps employers find and fix hazards before a more serious incident occurs.

Related: Hazard Recognition, Recordable Injury
Recordable Injury

A work-related injury or illness that must be entered on the employer's OSHA log because it involves death, days away from work, restricted work, medical treatment beyond first aid, or loss of consciousness. Recording rules have specific criteria.

Related: Near Miss, OSHA Inspection
Workers' Rights Under the OSH Act

Rights that include receiving safety training, obtaining hazard information, reviewing injury records, requesting inspections, and being protected from retaliation for raising safety concerns. These rights apply without regard to immigration status.

Related: Anti-Retaliation Protection, Complaint Filing
Anti-Retaliation Protection

Legal protection that prohibits employers from firing, demoting, or otherwise punishing workers for exercising safety rights, such as reporting hazards or filing a complaint. Retaliation claims are investigated by OSHA.

Related: Workers' Rights Under the OSH Act, Complaint Filing
Employer Responsibilities

Duties that include providing a safe workplace, complying with standards, supplying required PPE and training, keeping records, and posting required notices. Employers must also report certain fatalities and severe injuries to OSHA.

Related: Workers' Rights Under the OSH Act, Recordable Injury
Complaint Filing

The process by which a worker or representative asks OSHA to inspect a workplace. A complaint can be filed online, by phone, by mail, or in person, and the worker may request that their name be kept confidential.

Related: Anti-Retaliation Protection, OSHA Inspection
OSHA Inspection

A workplace examination by an OSHA compliance officer to determine whether standards are being followed. Inspections may be triggered by complaints, referrals, programmed schedules, or serious incidents, and workers have the right to participate.

Related: Complaint Filing, Recordable Injury
Walkaround Representative

A worker or union representative chosen by employees to accompany the OSHA compliance officer during an inspection. The representative helps point out hazards and observe conditions, and employers may not retaliate against them.

Related: OSHA Inspection, Anti-Retaliation Protection
Imminent Danger

A condition in which a worker faces a reasonable expectation of death or serious physical harm before the hazard can be removed through normal enforcement. OSHA treats these reports as top priority and may seek immediate correction.

Related: Complaint Filing, OSHA Inspection