Subpart F
This subpart applies to general working conditions in shipyard employment everywhere it occurs, including work on vessels, vessel sections, and landside operations. See the scope and application in 1915.80(a).
An affected employee is someone who normally operates or uses the machine, equipment, or system being serviced or who works in the area where servicing under lockout/tags-plus is performed. See the definition of Affected employee in 1915.80(b)(2).
An authorized employee is someone assigned to perform one or more lockout/tags-plus responsibilities—executing procedures, installing a lock or tags-plus system, or servicing equipment under lockout/tags-plus. See the Authorized employee definition in 1915.80(b)(3).
An affected employee becomes an authorized employee when the employer assigns that person to service any machine, equipment, or system under a lockout/tags-plus application. See 1915.80(b)(3)(ii).
An energy-isolating device is capable of being locked out if it has a built-in locking mechanism or a hasp/attachment through which a lock can be affixed, or if lockout can be achieved without dismantling, rebuilding, replacing, or permanently altering the device's energy-control capability. See 1915.80(b)(4).
An additional safety measure is any impediment (beyond the energy-isolating device and tag) that prevents release of energy or startup—examples include removing an isolating circuit element, blocking a switch, blanking or bleeding lines, removing a valve handle, or opening an extra disconnecting device. See 1915.80(b)(1).
A tags-plus system may be used only when an energy-isolating device has a tag affixed and at least one additional safety measure is implemented to impede energy release, making the tag part of a multi-component control system. See the Tags-plus system definition in 1915.80(b)(31).
Energy-isolating devices are mechanical means that physically prevent energy release—examples include manually operated circuit breakers, disconnect switches, line valves, and blocks. Control-circuit devices like push buttons or selector switches are not considered energy-isolating devices. See 1915.80(b)(7).
Hazardous energy includes any energy source that could injure employees, such as mechanical (springs, gravity), pneumatic, hydraulic, electrical, chemical, and thermal energy. See the definition of Hazardous energy in 1915.80(b)(8).
A lock is a device using a positive means (key or combination) to hold an energy-isolating device in a safe position so the equipment cannot be energized until the lock is removed. See the Lock definition in 1915.80(b)(13).
A lockout/tags-plus coordinator is designated to coordinate and oversee all lockout and tags-plus applications when multiple servicing operations occur simultaneously; the coordinator also maintains the lockout/tags-plus log. See 1915.80(b)(15).
Lockout/tags-plus materials and hardware include locks, chains, wedges, blanks, key blocks, adapter pins, self-locking fasteners, or other hardware used to isolate, block, or secure equipment to prevent energy release or startup. See 1915.80(b)(16).
Motor vehicle includes employee-operated vehicles used to transport people, materials, or property—examples: passenger cars, light trucks, vans, motorcycles, ATVs, small utility trucks, and powered industrial trucks—but excludes boats and vehicles operated exclusively on rails. See 1915.80(b)(17)–(18).
Normal production operations are the use of machinery or equipment to perform shipyard production processes, such as punch presses, bending presses, shears, lathes, and automated burning machines. See 1915.80(b)(20).
A portable toilet is a non‑sewered, flushable or non‑flushable facility for collecting urine and feces (not a privy). Potable water meets drinking-water standards of the state/local authority or the EPA's National Primary Water Regulations (40 CFR part 141). See 1915.80(b)(21)–(22).
"Readily accessible/available" means reachable quickly enough for emergency medical or personal needs. "Sanitation facilities" include drinking water, toilets, hand-washing, showers, changing rooms, eating areas, first aid stations, and supplies like soap and towels. See 1915.80(b)(23)–(24).
Serviceable condition means supplies, tools, machines, or devices are in the state or condition that allows them to be used or to operate as the manufacturer prescribes. See 1915.80(b)(25).
Servicing includes construction, installation, adjustment, inspection, modification, testing, or repair of machinery, equipment, or systems, and maintenance when those activities could expose employees to harm from energization or hazardous energy release. A sewered toilet is a flushed fixture connected to a sanitary sewer, septic tank, holding tank, or on-site treatment. See 1915.80(b)(26)–(27).
A shield is a covering, protective layer, or effective measure installed on or around steam hoses or temporary steam piping (including fittings and couplings) to protect employees from contacting hot surfaces. See 1915.80(b)(28).
A short bight is a loop in a line or rope used to tie back or fasten objects such as hoses, wiring, and fittings. It’s used where a small loop is needed to secure or fasten items safely. See 1915.80(b)(29).
A tag is a prominent warning device with a means of attachment that can be securely fastened to an energy‑isolating device per an established procedure to indicate the device and controlled equipment must not be operated until an authorized employee removes the tag. See 1915.80(b)(30).
Verification of isolation means using the means necessary to detect hazardous energy presence, which may include a test instrument (e.g., voltmeter), visual inspection, or a deliberate attempt to start the machinery (for non‑electric hazards), to confirm isolation. See 1915.80(b)(32).
A vessel section is a subassembly or module of a vessel; a walkway is any surface employees use to walk or gain access (includes aisles, ladders, ramps, scaffolding); a work area is a specific area where tasks are performed (e.g., machine shop); a working surface is any surface where work occurs or tools/materials are staged; and worksite refers to the overall site. See 1915.80(b)(34)–(38).
A dummy load is a device used in place of an antenna when testing a radio transmitter; it converts transmitted energy to heat to minimize radiation or reflection during testing. See 1915.80(b)(6).
Vermin are insects, birds, rodents, and other animals that may create safety and health hazards for employees. See 1915.80(b)(33).
A host employer is in charge of coordinating shipyard-related work or hires other employers to perform such work at a multi‑employer worksite; the host employer has responsibility to coordinate work and safety among employers. See the Host employer definition in 1915.80(b)(11).
An isolated location is where employees work alone or with little assistance due to type, time, or remote location; recognizing isolated locations helps plan communications, emergency response, and first-aid arrangements. See 1915.80(b)(12) and consider OSHA's guidance on first aid and bleeding control in workplaces at https://www.osha.gov/laws-regs/standardinterpretations/2019-06-19.