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Toolbox talk · 10 min · Tools & Equipment

Machine Guarding

Hazards: Amputation or crushing at the point of operation · Caught in an in-running nip point — belt, chain, roll or gear · Entanglement in rotating shafting, spindles or couplings · Struck by flying chips, sparks or a thrown workpiece

Why it matters

Machine guarding, 29 CFR 1910.212, was the tenth most frequently cited OSHA standard in fiscal year 2025. OSHA also renewed its National Emphasis Program on Amputations in Manufacturing Industries on June 27, 2025, writing that injuries involving machinery or equipment often result in death or permanent disability, and that workers doing servicing and maintenance are often hurt when no guarding is present or energy control is not followed.

Key points

  • If it can hurt you, it gets guarded. 1910.212(a)(1) names the four hazards by name: point of operation, ingoing nip points, rotating parts, flying chips and sparks.
  • The point of operation is the line you never cross. (a)(3)(ii): the guard must prevent any part of your body from being in the danger zone during the operating cycle. Not "usually" — during the cycle.
  • Guards stay bolted on, and cause no hazard themselves. (a)(2): affixed to the machine where possible, secured elsewhere if not. A guard held on with one screw is not a guard.
  • Seven feet. Flywheels, horizontal shafting, pulleys, sprockets and chains within seven feet of the floor must be enclosed (1910.219). Fan blades under seven feet: openings no bigger than half an inch.
  • A hand tool supplements a guard, never replaces it. (a)(3)(iii) is explicit: push sticks and pull-out tools are on top of the required guarding, not instead of it.
  • Jam, clean, adjust, lubricate — that is lockout work. OSHA lists all four as servicing. Reaching in with the drive live is how hands are lost.
  • Report a missing guard the same shift. Nobody on this floor has the authority to run a machine with its guard off, and nobody gets blamed for stopping one.

Do / Don't

Do

  • Check that every guard is present and fastened before you start the machine.
  • Use the push stick, pusher or fixture the machine was set up with.
  • Lock out and verify zero energy before you reach past a guard.
  • Tie long hair back, and lose the gloves, sleeves, rings and lanyards near rotating parts.

Don't

  • Defeat an interlock, wedge a gate or tape down a switch.
  • Clear a jam, wipe down or oil a machine that is still turning.
  • Run a machine that walks or rocks — 1910.212(b) requires it anchored.
  • Wait for the next shift to report a guard that came off on yours.

Quick site check

  • Walk the line together and count the guards that are missing, loose or modified.
  • Find every belt, chain, sprocket and shaft below shoulder height and check it is enclosed.
  • Pick one machine and ask out loud: how would we lock this out to clear a jam right now?
Discussion — ask the crew
  1. Walk to your machine: is every guard that came with it still on it, and still fastened?
  2. Which machine here is the easiest to reach into while it is running — and why has nobody fixed that?
  3. Who has cleared a jam this month without locking out? What made that feel like the reasonable choice?
  4. If a guard is in your way and slowing you down, who do you tell, and what happens after that?
  5. Anything on this floor turning below head height without a cover on it — shafting, a sprocket, a fan?
Refs: 29 CFR 1910.212 — General requirements for all machines: (a)(1) types of guarding, (a)(2) guards affixed to the machine, (a)(3)(ii) point of operation, (a)(5) fan blades under seven feet, (b) anchoring fixed machinery · 29 CFR 1910.219 — Mechanical power-transmission apparatus: the seven-foot rule for flywheels (b)(1), horizontal shafting (c)(2)(i), pulleys (d)(1) and sprockets and chains (f)(3); oiling when not in motion (p)(7) · 29 CFR 1926.300(a) and (b)(1)-(b)(2) — Construction: tools maintained in safe condition; guards fitted when the tool is designed to accommodate them; belts, gears, shafts, pulleys, sprockets, spindles, drums, flywheels and chains guarded · OSHA 3170 — Safeguarding Equipment and Protecting Employees from Amputations: hazardous mechanical motions, the hazardous activities list, and primary versus secondary safeguarding methods · OSHA CPL 03-00-027 — National Emphasis Program on Amputations in Manufacturing Industries, effective June 27, 2025 · OSHA — Top 10 Most Frequently Cited Standards, FY 2025 (machine guarding, 29 CFR 1910.212, ranked tenth)Sign-in sheet included in the printed version

Frequently asked questions

1910.212(a)(1) requires one or more methods of machine guarding to protect the operator and other employees in the machine area from hazards such as those created by point of operation, ingoing nip points, rotating parts, and flying chips and sparks. At the point of operation, (a)(3)(ii) says the guarding device shall be so designed and constructed as to prevent the operator from having any part of his body in the danger zone during the operating cycle.

1910.212(a)(3)(i) defines it as the area on a machine where work is actually performed upon the material being processed. (a)(3)(iv) lists machines that usually require point-of-operation guarding: guillotine cutters, shears, alligator shears, power presses, milling machines, power saws, jointers, portable power tools, and forming rolls and calenders.

1910.219 treats seven feet above the floor or working platform as the height below which power-transmission parts must be enclosed: flywheels at (b)(1), exposed horizontal shafting at (c)(2)(i), pulleys at (d)(1), and sprocket wheels and chains at (f)(3). 1910.212(a)(5) uses a similar line for fans — where the periphery of the blades is less than seven feet above the floor, the blades shall be guarded, with guard openings no larger than one-half inch.

No. 1910.212(a)(3)(iii) allows special hand tools for placing and removing material so the operator does not put a hand in the danger zone, but states they shall not be in lieu of other guarding required by this section — they only supplement the protection provided.

No. The guard is what the standard requires, and no supervisor can waive a standard. If a guard genuinely makes the work impossible, that is an engineering problem to bring to maintenance and the safety lead — a different guard, a different feed method, a different tool.

Usually yes. OSHA 3170 counts clearing jams, machine adjustments, cleaning and lubricating among the servicing and maintenance activities, and says machine safeguarding must be supplemented by an effective energy control program so employees are protected from hazardous energy during that work. 1910.219(p)(7) adds that machinery shall be oiled when not in motion, wherever possible.

Heavily. 29 CFR 1910.212 was the tenth most frequently cited OSHA standard in fiscal year 2025, and OSHA's National Emphasis Program on Amputations in Manufacturing Industries, CPL 03-00-027, took effect on June 27, 2025 and runs for five years — it schedules programmed inspections of manufacturing establishments specifically for guarding and energy control.

Yes, through Subpart I of Part 1926. 1926.300(b)(1) requires that when power-operated tools are designed to accommodate guards, they shall be equipped with such guards when in use, and (b)(2) requires guarding of exposed belts, gears, shafts, pulleys, sprockets, spindles, drums, flywheels and chains. 1926.300(a) requires all tools to be maintained in a safe condition.

Sources & references

Content checked against these sources — last reviewed August 28, 2026.

Results are estimates for planning purposes and do not replace a competent person's evaluation or an engineer's design. Follow the OSHA standards that apply to your work and your employer's written program.

By — Editorial team of SteelToeTools.com (published by LSEA SAS) Updated