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WA DOSH

Telehandler (Rough Terrain Forklift) - Washington (DOSH)

This talk follows Washington (WAC) rules · See the federal OSHA version →

Updated 2026-10-12

In this bundle Vehicle Safety

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A telehandler is the most useful machine on a Washington jobsite and the one most often driven like a pickup truck: it unloads the flatbed, crosses the mud, and puts the trusses on the second floor. This Washington Telehandler (Rough Terrain Forklift) Safety Toolbox Talk is about the one thing a telehandler has that a forklift does not — a boom — and about what chapter 296-863 WAC adds that federal OSHA does not: a design standard written for rough terrain, a restraint rule you can be cited under, and platform rules for lifting people that federal OSHA mostly leaves to letters.

Where the boundary of this talk sits#

The forklift talk owns the counterbalanced truck, the cranes talk owns rigging and signals once a machine is a crane, the power lines talk owns clearances, and the backing-up talk owns the spotter. This talk owns the boom under the WAC: the two-axis load chart, leveling before the lift, securing the load, the platform rules for lifting people, and the line where a telehandler with a hoist becomes a crane in Washington.

The anchor#

Here is the distinction that carries this whole talk: a forklift's capacity drops along one line — how far forward the load sits — but a telehandler's drops along two, boom angle and boom extension, so a load inside the chart at the truck can be outside it at the second-floor deck; which is why the chart is read before the boom goes out, the frame is leveled before the load goes up, the load is secured before it leaves the ground, and the boom comes in and down before the machine moves — and in Washington those steps are backed by chapter 296-863 WAC, not just the manual.

The chart has two axes, and Washington adopted the standard behind it#

The load chart in the cab is a grid: boom angles down one side, extensions across the top, capacity zones drawn over it. The numbers fall fast as the boom extends, and they change again with the attachment, the stabilizers, and the tires.

Washington put the engineering behind that chart into the WAC. Chapter 296-863 defines a rough terrain forklift truck as one intended for unimproved natural terrain and construction sites, and WAC 296-863-20005(4) says one manufactured on or after January 1, 2005 must meet ANSI B56.6-1992, the rough terrain forklift standard. Federal OSHA still points at B56.1-1969. WAC 296-863-20015(3) requires a truck with an attachment to be marked with the combined weight and the maximum capacity at the highest elevation. WAC 296-863-40015(1) is the crew's one-line rule: loads stable, safe, and within the rated load capacity. Read the chart for the weight, angle, and extension the placement needs, with the attachment that is on; if the number is not there, the lift changes — closer, lighter, or a crane. The overload alarm says you are at the edge, not where the edge is.

Level first, then lift#

The WAC does not level the frame for you; the manual does. Level with the boom down, on the cab indicator, and never above the boom height the manual sets, because leveling a raised, loaded boom shifts the load sideways when the machine has the least margin. Where the chart calls for stabilizers, they go down on firm ground with pads or cribbing before the boom moves. Rough terrain does not mean any terrain: soft fill, trench backfill, and a slope that looked flat all tilt the frame after you leveled it.

Travel is the forklift rule made stricter by the boom: boom in and low before the machine moves. WAC 296-863-40015(4) puts the load upslope on grades over 10 percent and keeps it trailing when it blocks the operator's view. WAC 296-863-40010 keeps the truck at a speed it can stop from. Getting off, WAC 296-863-40020 requires forks lowered, controls neutralized, brakes set; unattended — more than 25 feet away or out of sight — add power off and wheels blocked on an incline.

And the belt is not a memo in Washington. WAC 296-863-40005(1): "You must make sure operators use restraint devices, such as seatbelts or lapbars, when they are provided on the PIT." If the machine starts to go over, stay in the seat and lean away from the tip.

Secure the load before it leaves the ground#

WAC 296-863-40015 reads like the federal rule, and it is enough: loads stable and safe in (1); forks under the load as far as possible and the mast tilted back in (2); no forward tilt with the load elevated except to pick up or deposit in (3); a truck with an attachment treated as partially loaded even when empty in (6). WAC 296-863-40005(2) keeps everyone out from under the elevated part of any truck, loaded or empty. On a boom twenty feet out, that is the difference between a bundle that lands and one that comes off the tips.

Four habits meet the rule. Center the load, spread the forks, forks all the way under, carriage tilted back. Band and strap trusses, lumber, pipe, and sheet goods as a unit; fix broken banding on the ground. Loose blocks, tools, and scrap go in a cage, bin, or approved bucket, never on bare forks. Hang nothing from the forks. At the landing, nobody stands under the boom or the load, the receivers are tied off, the load is set down fully before anyone touches it, and one signal person directs the operator.

Lifting people: the platform rules are in the WAC#

Federal 1926.602(c)(1)(viii) gives a forklift work platform three lines — secured to the carriage or forks, a power shut-off for the people on it, protection from falling objects — and leaves the rest to interpretation letters. Washington wrote the rest down. WAC 296-863-40060 says the platform is securely fastened to the carriage or forks, has standard guardrails and toeboards on all sides, and the gap between platform and mast is guarded against shear points; the lift mechanism cannot drop faster than 135 feet per minute if the system fails; the carriage or forks are prevented from tilting; and where the controls elevate with the platform, the people on it can shut off the truck's power. WAC 296-863-40065 keeps the operator at the machine and in the operating position while the platform goes up or down, and bars moving the truck from one point to another with people up; inching at very low speed is all that is allowed.

What the WAC does not do is write a telehandler-specific capacity formula. The chart and the manual decide whether this machine may carry a platform at all, and WAC 296-863-20010 requires the manufacturer's written approval before adding parts or changing anything that affects capacity or safe operation. Scissor lifts, boom lifts, and scaffolds come first; a forklift platform is the last choice, not the first.

When a telehandler becomes a crane in Washington#

Washington's construction crane rules are chapter 296-155 WAC Part L, and WAC 296-155-52900(4)(u) exempts forklifts "except when configured to hoist and lower (by means of a winch or hook) and horizontally move a suspended load" — the same words as federal OSHA. A telehandler swinging a suspended load from a hook on the boom is a crane lift in Washington: ground conditions, power-line clearances, rigger and signal person, inspections. Subsection (3)(b) adds a Washington detail: that forklift skips the state's crane certification only when it was not built to an ASME B30 series standard, and the operator still follows chapter 296-863. The decision is made before the attachment goes on.

Where the duty sits#

Chapter 296-863 WAC governs the machine: the rough terrain definition in 099, B56.6 design in 20005(4), manufacturer approval for modifications in 20010, attachment marking in 20015(3), restraints and keeping people from under the load in 40005, control and speed in 40010, loads in 40015, leaving the seat in 40020, and work platforms in 40060 and 40065. WAC 296-863-60005, 60010, and 60015 carry operator training — training and evaluation before operating, refresher when assigned a different type of truck, a new evaluation at least every three years. WAC 296-155-52900 decides when the machine is a crane.

What can go wrong?#

  • A bundle of trusses inside the chart at the flatbed goes outside it as the boom reaches the deck; the machine tips forward over the receivers.
  • The frame is leveled with the boom raised and loaded; the load swings sideways and the machine goes over.
  • A platform of workers goes up on bare forks with no guardrails, where WAC 296-863-40060 requires them on all sides.
  • A hook goes on the boom and a load swings onto the roof with nobody asking whether Part L applies.
  • The operator skips the belt "to cross the yard" and jumps when the machine tips.

How do we manage this properly?#

  • Read the chart first — weight, angle, extension, attachment; off the chart means the lift changes.
  • Level before you lift — boom down, stabilizers on firm ground with pads.
  • Boom in and low to travel — load upslope over 10 percent, spotter when the view is blocked.
  • Secure the load on the ground — stable, safe, and within capacity per WAC 296-863-40015; nothing loose, nothing hung from the forks.
  • Lift people only under 40060 and 40065 — fastened platform, guardrails all sides, operator at the controls, no travel.
  • Decide the crane question early — winch or hook on the boom means Part L.
  • Belt on, every move — WAC 296-863-40005(1).

Before you start#

Do the pre-shift walk-around: tires, stabilizers, boom, forks, attachment pins, the chart, the level indicator, the belt. Confirm the chart matches the attachment that is on. Know the weight of every load and find its placement on the chart before the first lift. Walk the travel path and set-up spots. If a platform is planned, confirm the 40060 items and the manufacturer's approval; if a hook is planned, confirm whether it is now a crane lift.

Talk it over#

  • What is the heaviest placement today, and where is it on the chart?
  • When did you last see the frame leveled with the boom up?
  • What loose material do we carry on bare forks?
  • Who has been evaluated on this telehandler, not a warehouse forklift?
  • Have we ever put a hook on the boom without asking whether it was a crane lift?

The bottom line#

In Washington the chart has two axes and B56.6 behind it, the belt is a WAC rule, and the platform rules for lifting people are written in 40060 and 40065 — fastened, guardrails all sides, operator at the controls, no travel. A hook on the boom makes it a Part L crane lift. Read the chart before the boom goes out — the reach that makes it useful is the reach that tips it.

Frequently asked questions about telehandler safety in Washington#

Is the seat belt actually required on a telehandler in Washington?

Yes. WAC 296-863-40005(1) says operators must use restraint devices, such as seatbelts or lapbars, when they are provided on the truck. Federal OSHA reaches the same result through the General Duty Clause; Washington has it in the WAC.

Can we lift workers on the telehandler?

Only on a platform that meets WAC 296-863-40060 — securely fastened, guardrails and toeboards on all sides, shear points guarded, 135-feet-per-minute lowering limit, no tilt, a shut-off for the people on it — with the operator at the controls and no travel beyond inching, per 40065, on a machine the manufacturer approves for a platform.

Which design standard applies to our rough terrain forklift?

Under WAC 296-863-20005(4), a rough terrain forklift truck manufactured on or after January 1, 2005 must meet ANSI B56.6-1992. The chart in the cab is that standard applied to your machine.

When does Washington treat the telehandler as a crane?

When it is configured to hoist and lower a suspended load by a winch or hook and move it horizontally, per WAC 296-155-52900(4)(u). Part L then applies; the machine needs Washington crane certification only if it was built to an ASME B30 standard.

I am trained on a warehouse forklift. Can I operate the telehandler?

Not until you are trained and evaluated on it. WAC 296-863-60010 requires refresher training when an operator is assigned a different type of truck, and a telehandler's boom, two-axis chart, leveling, and stabilizers make it a different type.

Download the Washington telehandler safety toolbox talk PDF#

Download this Washington Telehandler (Rough Terrain Forklift) Safety Toolbox Talk as a printable PDF in English and Spanish for your next crew meeting, and read it in the cab with the load chart open.

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