Jenkins Academy of Applied Technology

HOT-001 — Learner reference

Welding, Cutting and Hot Work · v1.0.0 · October 22, 2026

Course developed by Todd Jerome Jenkins, MS, CSP.

Learn the OSHA safety requirements for welding, cutting and hot work in general industry and construction. Includes fire prevention, equipment, fumes, PPE, permits and safe closeout. Fourteen audible lessons; allow about 50–65 minutes.

Online knowledge component only. This course does not provide welding-performance certification, equipment-specific qualification, fire-watch authorization, respirator clearance or confined-space entry/rescue qualification. The employer must complete actual task instruction, practical verification and workplace authorization before assignment.

1. Recognize hot work and choose the applicable rules

By the end: Identify the job, jurisdiction, hazards and required workplace training before starting.

Welding, torch cutting, brazing and heating can start fires and expose people to burns, shock, fumes and radiation. Similar spark-producing work may also fall under the workplace hot-work program. A task does not become safe because it takes only a minute or uses no open flame.

General-industry welding and cutting requirements are in 1910.252 through 1910.254. Construction uses 1926.350 through 1926.354. The actual activity and applicable jurisdiction determine the rules; the company name or building address alone does not. Maritime work has separate standards and is outside this course's detailed coverage.

Look at the process, base metal, filler, coating, equipment, location and nearby work. Heat can pass through metal to ignite material on the far side. Sparks can reach lower floors, openings and distant material. Fumes and gases can affect helpers and people who are not welding.

This is an online safety knowledge course for general industry and construction. It does not qualify someone to make a code-compliant weld, operate unfamiliar equipment, enter a permit space or act as an authorized fire watch. The employer must provide actual equipment and task instruction and verify readiness before assignment.

Basis: 1910 Subpart Q; 1926 Subpart J; 1910.119(b)

2. Understand training and employer responsibilities

By the end: Record role-specific instruction, observed safe performance, remaining gaps and employer authorization.

Management establishes safe areas and procedures, assigns authorization responsibility, ensures suitable training and tells contractors about hazardous conditions they may not know. Supervisors review the work area, protect combustibles, coordinate other operations and ensure that required fire protection and fire watches are available.

General-industry arc-welding operators must be properly instructed and qualified to operate the equipment. People placed in charge of oxygen or fuel-gas supply equipment must be instructed and judged competent by the employer. Construction employers must instruct workers in the applicable gas and arc-welding safety precautions and in recognizing and avoiding unsafe conditions.

Training must fit the actual machine, torch, gases, materials, work setting and assigned role. A welder, fire watch and authorizing person need different practical knowledge. This course explains the requirements; employer instruction and safe demonstrations must establish that the person can apply them at work.

These welding provisions do not establish one universal initial course duration or annual refresher interval for all hot-work jobs. Other programs, such as respirator or extinguisher training, may have their own timing rules. Reassess training when equipment, hazards or duties change, or performance shows a gap; treat that as an employer readiness practice unless a specific rule sets the trigger.

Basis: 1910.252(a)(2)(xiii)-(xiv); 1910.253(a)(4); 1910.254(a)(3), (d); 1926.21(b)(2), 1926.350(d), 1926.351(d)

3. Inspect, authorize and document the job

By the end: Use the actual permit system and distinguish OSHA, EPA and workplace-policy requirements.

For general-industry welding and cutting, the person responsible for authorization must inspect the area and identify the precautions before granting approval, preferably through a written permit. That wording should not be changed into a claim that this single provision requires the same written form for every hot-work task.

OSHA process safety management is different: 1910.119(k) requires a hot-work permit for work on or near a covered process. It must document that the fire precautions in 1910.252(a) were implemented, identify the authorized dates and the object, and remain on file until the work is complete. A permit cannot waive a prohibited condition.

EPA Risk Management Program Program 3 has a separate covered-process hot-work permit rule in 40 CFR 68.85. The current text requires the fire-control documentation, authorized dates and object, with retention for three years after completion. Check actual coverage and current requirements; an EPA proposal to change a rule is not itself a final change. Local fire codes, contracts, insurers and employer policy may require permits or stronger controls beyond the baseline OSHA welding provisions.

Before starting, check the exact task and location, authorization period, material hazards, isolations, fire protection, watch coverage, exposure controls and related entry permits. A signed blank checklist proves nothing about the work area. If conditions change, stop and have the responsible person reassess the authorization under the workplace procedure.

Basis: 1910.252(a)(2)(iv); 1910.119(k); 40 CFR 68.85; 1926.352

4. Make the work area fire safe

By the end: Inspect all exposed areas and resolve ignition pathways before releasing the job.

Move the work to a designated safe location when practical. If it cannot move, remove movable fire hazards and protect remaining combustibles. Confine heat, sparks and slag with suitable guards. General industry prohibits welding or cutting when the basic removal and guarding precautions cannot be followed.

In general industry, move combustibles at least 35 feet away where practicable. Sweep combustible debris from the specified floor area and protect combustible floors. Thirty-five feet is not a guarantee: sparks may ignite material farther away, travel through openings or enter concealed spaces. Control ducts and conveyors that could carry sparks. Protect people from shock if floors are wetted.

Inspect above, below, behind and on the opposite side of the work. Metal walls and pipes can conduct heat to hidden combustibles. General industry prohibits work in unauthorized areas, sprinklered buildings with impaired protection, explosive atmospheres and certain areas with large amounts of exposed readily ignitable material. It also prohibits welding on metal partitions with combustible coverings or combustible sandwich panels.

Construction requires removal or positive protection of fire hazards and the same precautions on the opposite side of walls, floors and ceilings. Do not weld, cut or heat where flammable paints, other flammable compounds or heavy dust concentrations create a hazard. Suitable extinguishing equipment must be immediately ready. A fire watch supplements these controls; it does not make a prohibited location acceptable.

Basis: 1910.252(a)(1)-(2); 1926.352(a)-(d), (f)

5. Assign and maintain an effective fire watch

By the end: Specify watch locations, hazards, equipment, relief and the applicable post-work period before ignition.

In general industry a fire watch is required where more than a minor fire may develop and for the listed exposure conditions. These include appreciable combustibles within 35 feet, easily ignited combustibles farther away, openings within 35 feet exposing adjacent or concealed combustibles, and materials on the opposite side that heat could ignite.

The watch needs ready extinguishing equipment, training in its use and knowledge of the alarm. Watch all exposed areas. Attempt extinguishment only when the fire is clearly within the available equipment's capacity and the person's training and workplace policy; otherwise sound the alarm and follow evacuation instructions. Arrange enough coverage to see remote or opposite-side hazards without abandoning the assigned watch.

General industry's required watch continues for at least 30 minutes after welding or cutting ends. Construction uses a different rule: when normal precautions are not enough, assign additional personnel during work and for a sufficient period afterward to ensure no possibility of fire remains. Those personnel must be instructed in the specific anticipated hazards and provided firefighting equipment. Do not present 30 minutes as the construction rule's universal endpoint.

Follow any longer applicable watch or monitoring period set by the hazard evaluation, permit, fire code or employer policy. Stop hot work if required coverage is lost; arrange a clear handoff before a watcher leaves. A worker carrying out another task cannot be assumed to provide effective fire watch merely because they are nearby.

Basis: 1910.252(a)(2)(iii), (x); 1926.352(e)-(f)

6. Move, secure and store cylinders safely

By the end: Verify identification, securement, valve protection, storage separation and the safe handling route.

Read the cylinder identification and use equipment intended for the gas. Protect cylinders from impact, heat, sparks and electrical circuits. Keep them secured against falling. Construction requires upright securement except necessary short periods during actual hoisting or carrying; fuel-gas cylinders are used with the valve end up.

Use suitable handling equipment. Never lift by the valve cap, use a cylinder as a roller or strike an arc against it. Construction requires caps in place and regulators removed before movement unless the cylinder is firmly secured on a special carrier intended for that purpose. Close cylinder valves when work finishes, cylinders are empty or cylinders are moved.

Oxygen cylinders in storage must be separated from fuel-gas cylinders or combustible materials by at least 20 feet, or by a noncombustible barrier at least 5 feet high with at least a half-hour fire-resistance rating. The storage rule must not be confused with a universal distance between every connected cylinder in use. Have the employer determine actual storage/use status and applicable additional rules; do not invent an overnight exception.

Store cylinders in protected, ventilated locations away from damage and escape routes, not unventilated lockers. Keep oxygen equipment and handling surfaces free of oil and grease. Cylinders belong outside confined spaces. If a cylinder is damaged or leaking, stop, isolate the area safely and follow the employer's supplier/emergency procedure; do not improvise repairs or move through a hazardous release.

Basis: 1910.253(b); 1926.350(a)-(c)

7. Inspect and use gas equipment within training

By the end: Demonstrate the actual inspection and safe shutdown with a qualified instructor before independent use.

Only trained personnel may set up and use the gas system under the manufacturer's instructions and workplace procedure. Use approved, gas-compatible torches, regulators, gauges, hoses and connections. Do not force mismatched fittings or use adapters to interchange oxygen and fuel-gas connections. Keep oil and grease away from oxygen equipment and do not handle it with oily gloves.

Construction requires in-use gas hoses and torches to be inspected at the beginning of each working shift. Inspect for leaks, damaged hose and faulty valves or connections; remove defective equipment from service. Equipment that has had a flashback or is of doubtful condition needs the prescribed qualified inspection/testing before reuse. This course is not an instruction to perform a pressure test yourself.

Light torches only with a friction lighter or other approved device, not matches or nearby hot work. Follow the actual equipment's startup, shutdown and abnormal-event procedure; a generic online sequence can be wrong for the system. Acetylene must not be used above 15 psig under 1910.253(a)(2), subject to the specific standard's distinctions. This maximum is not an instruction to set every torch to that pressure.

Never use oxygen for ventilation, comfort cooling, clothing cleaning or blowing debris. Route hoses clear of walkways and protect them from damage. If a leak, flashback or other abnormal condition occurs, stop and follow the trained safe isolation and emergency procedure. Do not continue with leaking equipment because the cut is almost complete.

Basis: 1910.253(a), (e); 1926.350(d)-(i)

8. Control shock and arc-equipment hazards

By the end: Verify the actual electrical setup and explain shutdown and defect-reporting steps before use.

Arc equipment must be suitable for the work and installed, grounded and maintained correctly. Check holders, cable insulation, connections, work leads, frame grounding and shutdown controls before use. Cables and holders must carry the required current safely. Route leads out of travel routes and protect against sharp edges, hot metal and vehicles.

The welding work-return circuit and protective equipment grounding serve different functions. Do not use gas or flammable-liquid pipelines or electrical conduits as a return path. Construction requires adequate return capacity and sound connections; sparking or heating at structure joints disqualifies that structure as a return circuit. Qualified personnel must resolve the fault.

General industry prohibits cable splices within 10 feet of the holder. Construction's cable rule includes specific exceptions for standard insulated connectors or splices with insulation equal to the cable; do not transfer that exception into the general-industry rule. Damaged cables need correction under the applicable standard and qualified procedure, not an improvised repair by an untrained operator.

Construction requires removing electrodes from unattended holders, placing holders to prevent contact, opening the power switch when leaving for an appreciable time or moving equipment, and reporting defects. Never dip a hot electrode holder in water. Wet conditions and perspiration increase shock risk; stop and establish suitable protection. Repairs and servicing require the applicable energy-control procedure and qualified personnel.

Basis: 1910.254; 1926.351

9. Protect eyes, skin, hearing and nearby people

By the end: Verify PPE for the exact process and protect everyone exposed to arc rays, sparks and particles.

Select eye and face protection for the process, current and exposure using the applicable OSHA filter-lens table and equipment guidance. There is no single correct shade for every welding or cutting task. Arc welding requires appropriate helmets or hand shields, and gas work requires suitable filtered eye protection. Provide protection for helpers and nearby exposed people too.

Use suitable impact protection for flying particles as well as radiation protection. A welding helmet is not a reason to leave eyes unprotected during chipping or grinding. Inspect lenses and equipment for damage, correct fit and compatibility with other PPE. Workers need instruction in use, limits, care and replacement.

Protect exposed skin from sparks, hot metal and ultraviolet radiation with suitable clothing, gloves and footwear. Keep clothing free of hazardous contamination and follow the employer's hazard assessment. Control noise and provide hearing protection when required. Consider hot surfaces, awkward positions, falling material and work-at-height protection as part of the task.

Use suitable noncombustible or flameproof screens to protect others from the arc where required or practicable under the applicable provision. Screens must not create an unsafe ventilation restriction or block escape. For construction inert-gas metal-arc work, additional radiation protection applies, including protection from another welder's arc. Do not assume looking away or wearing ordinary sunglasses is sufficient.

Basis: 1910.252(b); 1910.132-.133; 1926.102; 1926.351(e); 1926.353(d)-(e)

10. Control fumes, gases and ventilation

By the end: Have a qualified person evaluate the actual materials, exposure and ventilation before approving the task.

Fume and gas hazards depend on the base and filler metals, fluxes, coatings, cleaning residues and process. Read labels and safety data sheets and obtain the employer's exposure evaluation. A normal smell or lack of visible smoke does not establish safe air. Shielding gases can displace oxygen, particularly in restricted areas.

General industry requires ventilation to keep exposures within applicable limits. Its general-metal ventilation provisions specify mechanical ventilation for spaces under 10,000 cubic feet per welder, ceilings below 16 feet, confined spaces or significant barriers to cross ventilation. The general minimum is 2,000 cubic feet per minute per welder, with the stated local-exhaust or airline-respirator alternatives. Material-specific rules can require additional protection; these numbers are not a complete ventilation design.

Construction requires suitable ventilation or respiratory protection for unsafe contaminant accumulation and has specific enclosed-space and toxic-metal rules. Position local exhaust close enough to capture fumes without drawing them through the breathing zone. Replacement air must be clean and respirable; keep exhaust from contaminating intake air or other workers. A fan that merely moves smoke across the room may transfer the exposure.

Lead, cadmium, chromium, mercury and beryllium require particular evaluation. Construction beryllium work has stringent local-exhaust and airline-respirator requirements for enclosed work and airline protection outdoors. Related substance-specific standards also apply. Required respirators need the applicable written program, medical evaluation, fit testing for tight-fitting respirators and training. Do not choose a dust mask as a universal substitute for ventilation or gas protection.

Basis: 1910.252(c); 1926.353(a), (c)-(e); 1910.134

11. Check coatings and cleaning chemicals

By the end: Resolve unknown coatings and cleaning chemicals before ignition; document the required control method.

Heating paint, plating, preservatives or cleaning residues can release toxic gases and fumes or ignite the coating. Identify these materials before hot work. Appearance alone cannot establish that a surface is free of lead, cadmium or another hazardous constituent. Include the hazards in the workplace hazard communication and exposure controls.

For construction, a competent person must test a preservative coating of unknown flammability before heating it. Highly flammable coatings must be stripped from the heated area to prevent ignition. Do not have an untrained worker experiment with flame beside the job. Coating removal itself may need dust, chemical and waste controls.

Construction toxic-preservative rules require, in enclosed spaces, removal of toxic coatings for at least 4 inches from the heat area or protection with airline respirators. In open air, the rule requires respirator protection. Coatings must also be removed far enough that the remaining coating is not appreciably heated; four inches is not a universal clearance for every job. Apply other exposure standards and qualified assessment as well.

Keep chlorinated-solvent vapors away from welding: heat and ultraviolet radiation can create dangerous decomposition products. General industry requires locating degreasing so vapors do not enter the welding atmosphere. Construction inert-gas metal-arc work keeps chlorinated-solvent use at least 200 feet from the exposed arc unless shielded, and cleaned surfaces must be thoroughly dry. Dryness alone does not address nearby solvent vapor.

Basis: 1910.252(c)(1), (c)(5)-(12); 1926.353(c)-(d); 1926.354

12. Coordinate hot work with confined-space controls

By the end: Verify entry and hot-work permissions together, including atmospheric control and planned rescue.

A hot-work authorization does not replace confined-space evaluation or an entry permit where required. Identify the applicable entry rules, atmosphere, isolation, ventilation, communication and rescue arrangements before entry. This course does not qualify an entrant, attendant or rescue team.

General-industry welding in confined spaces requires gas cylinders and welding machines outside. Construction also keeps cylinders outside confined spaces. Supply clean breathable replacement air and control hazardous atmospheres. Never use oxygen for ventilation. Ventilation equipment must not block access or escape; a reading taken before a changing operation does not guarantee conditions stay safe.

The welding rules require means for quick removal through small openings and an outside attendant with a preplanned rescue procedure in the stated circumstances. Coordinate those requirements with the applicable confined-space program and suitable retrieval equipment. A nearby coworker or a phone number alone is not an adequate rescue arrangement. Do not enter impulsively to rescue a collapsed worker.

For substantial breaks, shut off gas supply positively outside the space and follow required equipment isolation. Construction requires torch and hose removal overnight and at shift changes, and prompt removal of disconnected open-ended hoses from enclosed spaces. General industry requires removal where practicable. Stop when ventilation, communication or another required control fails and follow the entry program's withdrawal procedure.

Basis: 1910.252(a)(4), (b)(4), (c)(4); 1910.146; 1926.350(b)(4); 1926.352(g); 1926.353(b); 1926 Subpart AA

13. Treat used containers and hollow structures as special hazards

By the end: Require documented container history, isolation, preparation and qualified authorization before applying heat.

An empty drum or tank can still contain residue or vapor that explodes when heated. The outside can look clean while internal surfaces, seams or connected lines retain hazardous material. Do not weld or cut a used container based only on its label, age or a claim that it was rinsed.

General industry prohibits hot work on used containers until they are thoroughly cleaned to make certain that flammables and substances that could produce flammable or toxic vapor are absent. Connected piping must be disconnected or blanked. Hollow spaces and cavities require venting before preheating, cutting or welding so pressure does not build up.

Construction specifies that containers or hollow structures that held toxic or flammable substances be filled with water or thoroughly cleaned, ventilated and tested before the work. It also requires a vent or opening for built-up pressure. This wording is not a do-it-yourself approval: a qualified plan must address the actual contents, residues, compatibility, isolation, testing and other hazards. Do not infer safety from water filling alone in an unknown vessel.

Prefer a safer method where feasible. Have qualified personnel establish and verify the preparation, atmospheric testing and controls for the actual work. Inert gas can create an oxygen-deficient atmosphere and does not authorize entry. Hot tapping or work on operating gas pipelines requires specialized rules and expertise outside this course's qualification scope.

Basis: 1910.252(a)(3); 1926.352(h)-(j)

14. Stop safely, respond to problems and close the job

By the end: Use a deliberate handoff from active hot work to watch, inspection and safe return of the area.

Stop hot work when conditions change: new combustibles, flammable vapors, impaired fire protection, lost ventilation, damaged equipment or missing watch coverage can invalidate the original setup. Report the change and have the responsible person reassess before restarting. A permit's end time does not mean conditions remain safe until then.

For fire, exposure, shock or injury, use the workplace alarm and emergency procedures. Fire-watch action stays within training, available equipment and policy. Evacuate and call the appropriate responders when the fire is beyond those limits. Do not attempt an unprotected confined-space rescue or touch someone still connected to an electrical source; activate the planned emergency response.

Shut down and secure equipment under the actual procedure. Close gas cylinder valves as required, make holders safe, isolate power appropriately and protect hot metal from accidental contact. Mark hot metal or otherwise warn others. Keep required fire-watch coverage after the last spark, including relief and additional checks needed by the hazards and permit.

Closeout records should identify actual work completion, watch coverage and ending time, final inspection, equipment defects, remaining restrictions and who released the area. These records support the workplace process; a checked box cannot prove an inspection occurred. Retain permits under all applicable OSHA, EPA and other duties. Review problems and correct their causes before the next job.

Basis: 1910.252(a)(2)(iii), (b)(4), (c)(13); 1910.254(d); 1926.350-.352

Sources

Federal OSHA and EPA sources reviewed October 22, 2026. Confirm the actual work, jurisdiction and applicable additional requirements. Agency guidance supports planning; it is distinguished from mandatory standard text.