A pipefitter replacing a valve and a longshore worker unloading cargo might spend the day aboard the same vessel. Their assignments can fall under different OSHA standards. That distinction matters when someone needs to decide which precautions, equipment, or training the work requires.
The three main sets of OSHA maritime standards are 29 CFR Part 1915 for shipyard employment, 29 CFR Part 1917 for marine terminals, and 29 CFR Part 1918 for longshoring. Each covers a different kind of work, although the boundaries need a closer look when operations overlap.
At Illustra Pro, we want our maritime safety resources to help you connect those numbers with the work in front of you. You shouldn’t need to memorize a regulation book to ask a useful safety question.
Reading the numbers
CFR means Code of Federal Regulations. Title 29 covers labor, including OSHA standards. The next number identifies the part; digits after the decimal identify a section within it.
For example, 29 CFR 1915.89 means Title 29, Part 1915, Section 89. That section addresses hazardous energy during covered shipyard servicing work. When a procedure cites it, you have a reference you can check rather than an unexplained instruction to follow.
The part number is a starting point. Your employer still needs to determine which provisions apply to the actual operation.
29 CFR Part 1915: A repair job can involve several hazards
Part 1915 covers shipbuilding, ship repairing, shipbreaking, and related employment. Ship repairing includes much more than fixing broken machinery: cleaning, painting, maintenance, alterations, and installations can fall within its scope. Shipbreaking means dismantling a vessel for scrap.
That range explains why workers from several trades may follow the same part. An electrician and a tank cleaner have different assignments, but both may be doing shipyard work.
Picture a pipe repair inside a tank. Before anyone starts, the employer has to consider the atmosphere, energy in the connected system, and any nearby activity that could affect the space. A welding crew working outside can introduce another hazard without ever entering the tank.
Under Section 1915.12, atmospheric testing follows a specified order: oxygen first, then flammability, then toxicity. The section identifies spaces that require a competent person to inspect and test them before entry. It also requires training for employees entering confined or enclosed spaces and other dangerous atmospheres.
An open hatch tells you very little about the air below it. Neither does the fact that someone entered earlier. Our article on confined space dangers in maritime work explains why these spaces deserve attention even when nothing looks unusual. Before entering, workers need the required checks, training, and entry arrangements for that assignment.
Hot work adds another risk: a fire may start somewhere the welder cannot see. Sparks can travel through openings, and heat can pass through steel to combustible material on the opposite side.
Section 1915.504 requires a fire watch when specified conditions exist, including circumstances where sparks or transferred heat could ignite material. During hot work, the assigned fire watch cannot have other duties. The watch must remain for at least 30 minutes afterward unless the employer or its representative surveys the exposed area and determines that no further fire hazard remains.
Our guide to fire watch duties during hot work covers those responsibilities. Understanding the surrounding space also matters; a hot work hazard assessment should account for where sparks and heat can reach.
Then there’s the equipment itself. Pressing a stop button doesn’t necessarily isolate electrical power, hydraulic pressure, or other stored energy.
Section 1915.89 requires hazardous energy controls for servicing within its scope, including verification of isolation before work begins. Where an isolating device accepts a lock, the employer must use one unless it demonstrates that a compliant tags-plus system provides equivalent protection. Tags-plus generally combines a tagged isolating device with an additional safety measure; the standard includes specific Navy exceptions.
Our discussion of maritime electrical hazards provides related background. On the job, workers need to know whose procedure controls the isolation, especially when another crew operates the connected system.
Where the cargo moves:29 CFR 1917
Marine terminal work brings together cargo, storage areas, trucks, railcars, and handling equipment. 29 CFR Part 1917 covers terminal operations within its scope, including loading and unloading land carriers. It also covers cargo transfer performed with shore-based material handling devices.
The forklift lane is an everyday example of why these rules matter. A load can obstruct the operator’s view while a pedestrian approaches from behind a stack. Both people may think the other has seen them.
Section 1917.43 addresses powered industrial trucks, including their condition and operation. Operator training requirements under Section 1910.178(l) also apply through Part 1917’s scope provisions. Workers should know the designated walking routes and how to communicate around moving equipment. Operators need training suited to the truck and workplace; familiarity with driving another vehicle doesn’t establish that competence.
Housekeeping and cargo stability also deserve attention between lifts. Loose strapping can catch a boot. Removing one pallet can expose an unstable stack beside it. 29 CFR 1917 addresses housekeeping and requires cargo to be stacked so it remains stable against sliding or collapse.
When preparing for a lift, consider the surrounding work area and the load. Our article on safe rigging practices offers further reading on planning and handling loads.
Some terminal hazards are harder to notice. Engine exhaust can accumulate in an enclosed area even with a large doorway open. Section 1917.24 addresses carbon monoxide and requires testing as often as necessary to keep exposures within its limits. Ventilation must suit the conditions; the doorway alone doesn’t ensure the air is safe.
29 CFR 1918 follows longshoring work aboard vessels
Part 1918 applies to longshoring operations and related employment aboard vessels. Loading and unloading cargo can put workers near open hatches, deep holds, narrow passages, and suspended loads.
Getting to the work area deserves its own attention. 29 CFR Part 1918 contains requirements for access, including gangways and ladders, along with provisions covering working surfaces and hatch openings. Someone arriving aboard an unfamiliar ship needs to know the proper route before carrying tools or joining the operation.
Climbing over cargo because it looks quicker can put a worker near an unprotected edge or moving gear. Our maritime fall protection guide discusses related risks, although the precautions must match the work and applicable standard.
Overhead cargo demands clear positioning. Section 1918.85 prohibits employees from working beneath suspended containers. Section 1918.81 requires workers to stay clear of the area beneath overhead cargo loads or descending lifting gear.
A load that appears steady can still shift. Workers need understood signals and a safe place to stand throughout the operation. If an instruction is unclear, resolve it before the lift continues.
Crossing the gangway doesn’t settle which part applies
Location helps, but it doesn’t answer every scope question. Repairing ship piping generally points toward 29 CFR 1915. Moving freight through a terminal generally points toward 29 CFR Part 1917. Handling vessel cargo aboard ship generally points toward 29 CFR 1918.
However, both Parts 1917 and 1918 expressly place cargo transfer using shore-based material handling devices under Part 1917. During unloading, a shore crane’s transfer operation and other work aboard the vessel may therefore involve different requirements.
Employers need to sort that out during planning. A worker shouldn’t have to guess which procedure applies because two crews are sharing the same space.
For example, a repair contractor could arrive while unloading is still underway. The repair crew may need access through an area cargo handlers use. Planning must address that shared route and the workarounds, along with precautions for the repair. Giving each crew its own instructions for that day leaves a gap if neither understands the other’s movements. A briefing should make those arrangements clear before workers enter the area with their tools.
Choosing training that fits the assignment
Our OSHA 10 Hour Maritime course and OSHA 30 Hour Maritime training pages explain the respective options. The 10-hour Outreach course introduces common hazards, and the 30-hour course provides broader coverage for supervisors and workers with safety responsibilities.
Federal OSHA Outreach training is voluntary, although employers, unions, or other requirements usually make it necessary. A completion card is neither a professional license nor a certification, and Outreach training doesn’t replace instruction required by individual OSHA standards.
That distinction is easy to miss when a job posting simply asks for an OSHA card. Someone who completes an introductory course may still need equipment training or instruction on a particular space before starting. Ask which course the employer accepts and which duties require separate preparation. This helps you choose training with a clear purpose.
Before enrolling, check which maritime work the course addresses and what your employer expects. For the assignment itself, ask your supervisor what additional training, authorization, or site instruction you need. Knowing the part number helps you find the rule; knowing the procedure helps you do the work safely.