Knowella

Trailer Restraint and Chock Record

A trailer restraint and chock record exists because a trailer pulling away with a forklift still inside it is one of the most reliably fatal events a warehouse can produce. Its recurring failure is treating restraint and key control as two separate ticks rather than one control: a restraint engaged with the driver's keys still in his pocket has not actually stopped anything, it has only recorded that half a control exists.

KnowSafeRecordSAF-134Pinned in navigation39 fields across 4 sectionsFull researchSee the form

Reviewed by Siddarth SinghCSPLast reviewed 16 August 2026

Basis
ISO 45001 cl.8.1
Workspace
KnowSafe
Form type
Record
Completed by
The loader and the driver, both signing
Raised
At every load and unload, not reconstructed after

The short version

  • Restraint and key control are one control, not two independent fields. A record showing restraint engaged as yes and keys held as no describes a trailer that could still move.
  • The record closes with an explicit sequence, forklift withdrawn before restraint released before keys returned, and reversing that order defeats the point of holding the keys in the first place.
  • Trailer floor and landing leg condition are physical entry hazards separate from restraint discipline, and a record that only tracks restraint while skipping floor inspection misses the failure mode of a floor collapsing under a loaded forklift.
  • Any Early Departure Attempt is the single field that tells you whether the control was actually tested that load, and it is the one most likely to be left at the default no without anyone checking.

What this is

What is a trailer restraint and chock record?

What is a trailer restraint and chock record?

A record completed each time a trailer is worked at a dock, confirming that the vehicle is reversed and squared, the engine off, the restraint engaged and confirmed, and the driver's keys or paperwork held before anyone enters the trailer. It closes with the reverse sequence: forklift withdrawn, restraint released, keys returned, and any early departure attempt recorded.

Why does key or document control matter as much as the restraint itself?

Because the restraint only holds if nobody drives away while it is engaged, and the practical way to guarantee that is to physically hold the one thing the driver needs to leave. A restraint confirmed working with the driver still holding his keys is a control that has not been switched on, whatever the restraint field says.

Who signs it, and why two signatures?

The loader and the driver both sign at release. The loader is attesting that the site's control was applied correctly; the driver is attesting that he did not move the vehicle before it was released. A single signature only covers one side of the event that the record exists to prevent.

Scope

When is a trailer restraint and chock record required?

This record covers one trailer, at one dock, for the duration it is being worked. It is not the dock's own equipment check, and it is not where racking, yard or forklift condition belongs.

Use this template when

  • A trailer is about to be loaded or unloaded and needs restraining before anyone enters it
  • A trailer already at the dock is changing operation, from unloading to loading, and needs re-confirming before entry resumes
  • The dock is being handed over between shifts with a trailer still attached
  • A linked record needs this one to exist: links loading dock check, driver records

Do not use it for

  • Loading Dock Safety Check, which confirms the dock's fixed equipment, leveller, barrier, lighting, is in working order generally, not that this specific trailer is restrained right now.
  • Racking Damage Report, which reports damage found on racking, not vehicle or entry control.
  • Powered Truck Daily Check, which covers the forklift's own condition, not the trailer it is about to enter.
  • Pedestrian and Vehicle Segregation Assessment, which designs separation across the wider yard rather than controlling one vehicle at one dock.
  • Anything outside KnowSafe, which belongs in the workspace that owns that process

Compliance mapping

Which ISO 45001 cl.8.1 requirements does this satisfy?

No standard names trailer restraint specifically. It sits under the general operational control duty to eliminate or reduce a recognised hazard, here a vehicle moving while someone is inside or on it, using the hierarchy of controls before falling back to procedure.

ClauseRequirementWhere it lands
ISO 45001 cl.8.1.1Establish criteria for processes and implement control of those processes consistently, applied the same way at every load and unloadHeader
ISO 45001 cl.8.1.2Eliminate hazards and reduce risk following the hierarchy of controls, applied to restraint and key control before entryBefore entry
OSHA Sec.5(a)(1)General Duty Clause obligation to address a recognised hazard likely to cause serious harmBefore entry
ISO 45001 cl.6.1.2.1Hazard identification proactive and ongoing, covering physical condition of the workplace, here the trailer floor and supportBefore entry
ISO 45001 cl.8.1.2Reduction of risk maintained through to closure, restraint held until the forklift is confirmed clearRelease
ISO 45001 cl.10.2Nonconformity identified and reacted to, proportionate corrective action takenRelease
ISO 45001 cl.7.5.3Documented information controlled and available to those who need it, evidenced by both parties' signaturesRelease

What it does not cover

  • Loading Dock Safety Check, which confirms the dock's fixed equipment is in working order generally, not that a specific trailer is restrained at this moment.
  • Racking Inspection, which checks pallet racking for damage, overload and missing components, a different hazard entirely.
  • Racking Damage Report, which reports racking damage found at any time, not vehicle or entry control.
  • Powered Truck Daily Check, which covers the forklift's own pre-use condition, not the trailer it is about to enter.
  • Pedestrian and Vehicle Segregation Assessment, which designs separation across the yard rather than controlling one vehicle at one dock.

Global

Trailer Restraint and Chock Record requirements by country

No jurisdiction names trailer restraint as its own instrument. It is read into the general duty to control workplace transport risk, and enforcement follows from what a recognised hazard requires rather than from a dock-specific standard.

United States

OSH Act General Duty Clause; OSHA general industry standards on materials handling and vehicle operations

No federal standard names trailer restraint devices, but a trailer separating from a dock while occupied is treated as a recognised, foreseeable hazard.

A record showing the restraint and key sequence was applied consistently is the evidence a citation defence relies on; a gap in the sequence reads as the hazard being known and unmanaged.

United Kingdom

Workplace (Health, Safety and Welfare) Regulations 1992; HSE guidance on workplace transport

Duty to organise loading operations so vehicles and people are kept apart, with restraint and chocking named in HSE dock safety guidance as the expected control.

HSE inspectors treat a trailer worked without restraint, or restrained with the driver still free to leave, as a direct failure rather than a paperwork gap.

International

ISO 45001

Operational control clause requires the hierarchy of controls applied to a recognised hazard such as vehicle movement at a fixed workface, maintained consistently across every occurrence.

Certification audits sample individual records looking for the restraint and key fields moving together, not just for the template being in use.

How to complete it

How to complete a trailer restraint and chock record, step by step

The record prompts for a sequence of yes or no answers. The judgement calls sit in how those answers are read back, not in how they are entered.

Read restraint and key control as one control

Restraint Engaged confirms the mechanism is on. Keys Or Documents Held confirms the driver cannot act against it. Neither field alone tells you the trailer is actually secured; both together do. A record with one yes and one no has not completed the control, whatever the individual answers suggest.

Enforce the release order, not just the release fields

Forklift Withdrawn, Restraint Released and Keys Or Documents Returned exist as three fields, but the sequence matters more than any one of them: releasing the restraint before confirming the forklift is clear reopens the exact hazard the entry sequence closed. A completed record with all three marked yes still needs the order checked, not assumed.

Treat a trailer floor or leg failure as an entry stop, not a note

Trailer Floor Inspected and Trailer Legs Or Support Fitted describe a different hazard, a floor or support failing under a loaded forklift, and it is not solved by restraint or key control at all. A no on either should stop entry regardless of how the restraint fields read, and reading them as secondary detail is the gap that lets a rotten floor through.

Treat Any Early Departure Attempt as the field that tests the control

Every other field describes what should have happened. This one records what a driver actually tried. A programme where this field is always no across every record for months is either genuinely working or nobody is asking the driver honestly, and the Case ID link exists precisely so a yes here does not disappear into the form.

What auditors find

Most common trailer restraint and chock record findings

Because the record is short and binary, findings rarely come from missing fields. They come from the sequence being right on paper and wrong in the order it actually happened.

FindingClauseWhat fixes it
Restraint Engaged marked yes while Keys Or Documents Held is marked no.ISO 45001 cl.8.1.2Treat the pair as a single control; a record with this combination should be queried, not filed.
Restraint Released recorded before Forklift Withdrawn on the same record.ISO 45001 cl.8.1.2Enforce the release order at the point of entry, not by reviewing timestamps after the fact.
Trailer Floor Inspected marked no, with entry proceeding regardless.ISO 45001 cl.6.1.2.1Stop entry on a failed floor or leg check; restraint status does not offset a structural finding.
Any Early Departure Attempt consistently no across every record for a haulier, with no corroborating driver interview.ISO 45001 cl.10.2Spot-check the field against driver accounts periodically; a field that never moves is not evidence it never happens.
Second Signature missing or applied by someone other than the driver on record.ISO 45001 cl.7.5.3Require both named parties to sign in person at release; a proxy signature defeats the record's purpose.
Restraint Indicator Confirmed answered not checked, with restraint still read as engaged.ISO 45001 cl.8.1.2Treat an unconfirmed indicator as unverified restraint, not as a working one with a missing detail.

Case in point

Case in point: the record that was complete and thirty seconds too fast

A cold-store site restrained a trailer, held the driver's keys, and had a picker inside it loading pallets within the correct sequence. Forty minutes later the load was finished, and the loader marked the record complete: forklift withdrawn, restraint released, keys returned, no early departure attempt. Every field read yes in the right places, no in the right places, and the record closed clean.

The keys had been handed back roughly thirty seconds before the forklift driver confirmed clear over the radio, because the loader was already walking toward the cab when the call came through and did not want to make a second trip. The trailer did not move. But the record described a sequence that, on a busier day with a driver less inclined to wait, had already stopped protecting anyone, and nothing in the completed fields would have shown that unless someone asked what order the two things actually happened in.

The template

The template, field by field

The form exactly as it installs. Every field, option, score and conditional rule is editable, and the links to other templates come with it.

39fields
4 sections
Reference
SAF-134
Archetype
Record
Record ID
TRR-2026-000
Scoring
Compliance rate
Direction
High is good
Singleton
Yes
Basis
ISO 45001 cl.8.1
Links
Links Loading dock check, Driver records
Tags
Warehouse, Dock
Sections
4
Fields
39
Follow up fields
1
Repeating sections
0
Links out
3
Field typesOwn ID, generated on saveCase thread and parentPick list from a registryLinked to another templateFollow up, dashed outlineScored

Header

15 fields
Text

Record ID*

Generated on save

Auto sequence. Format TRR-2026-000.

The record's own ID. Other templates point at this value.

Single Choice

Status*

Scored

Drives who this goes to next.

  • Planned2 pts
  • In progress2 pts
  • Complete3 pts
  • Deferred0 pts
  • Open0 pts
  • Closed3 pts
  • Overdue0 pts
Date & Time

Date and Time*

Users

Completed By*

Pick List

Site*

From FDN-001 Site NameFilter: Status is Active
Text

Site ID*

Linked

Format SITE-000.

Links to FDN-001 Site ID

Single Choice

Area

Optional

The area within the site.

Cutting roomBoning hallPackingChill storeFreezerPasteurisingFillingCulture roomDespatchYardWorkshopPlant roomOffices
Location

Exact Location

Optional

Drop a pin for anything hard to find.

Info

Vehicles That Pull Away Early

A trailer moving while a forklift is inside it is one of the most common fatal warehouse events. Restraint plus key control is what stops it, and both must happen every time.

Text

Dock Reference*

Text

Vehicle Registration*

Pick List

Haulier

OptionalFrom FDN-005 Vendor Name
Text

Driver Name

Optional
Single Choice

Operation*

LoadingUnloadingBoth
Date & Time

Time Started*

Before entry

12 fields
Single Choice

Vehicle Fully Reversed And Squared*

Scored
  • Yes3 pts
  • No0 pts
Single Choice

Engine Off*

Scored
  • Yes3 pts
  • No0 pts
Single Choice

Handbrake Applied*

Scored
  • Yes3 pts
  • No0 pts
Single Choice

Restraint Engaged*

Scored
  • Yes3 pts
  • No0 pts
Single Choice

Restraint Type*

Automatic hook, manual wheel chock, or both.

Automatic hookManual wheel chockBoth
Single Choice

Restraint Indicator Confirmed*

Scored
  • Yes3 pts
  • No indicator1 pt
  • Not checked0 pts
Single Choice

Keys Or Documents Held*

Scored
  • Yes3 pts
  • No0 pts
Users

Held By

Optional
Single Choice

Driver Directed To Waiting Area*

Scored
  • Yes3 pts
  • No0 pts
Single Choice

Trailer Floor Inspected*

Scored

Rotten or damaged trailer floors collapse under a loaded forklift.

  • Yes3 pts
  • No0 pts
Single Choice

Trailer Legs Or Support Fitted

OptionalScored
  • Yes3 pts
  • Not needed3 pts
  • No0 pts
Single Choice

Load Shifted In Transit*

Scored
  • No3 pts
  • Some1 pt
  • Significant0 pts

Related records

1 field
Text

Dock Check ID

OptionalLinked

The dock check covering this bay.

Links to SAF-133 Check ID

Release

11 fields
Single Choice

Work Complete And All Clear*

Scored
  • Yes3 pts
  • No0 pts
Single Choice

Forklift Withdrawn*

Scored
  • Yes3 pts
  • No0 pts
Single Choice

Restraint Released*

Scored
  • Yes3 pts
  • No0 pts
Single Choice

Keys Or Documents Returned*

Scored
  • Yes3 pts
  • No0 pts
Date & Time

Time Released*

Single Choice

Any Early Departure Attempt*

Scored
  • No3 pts
  • Yes0 pts
Text

Case ID

OptionalThread keyShows if Any Early Departure Attempt equals Yes

Thread key

Users

Loader*

Signature

Signature*

Users

Driver*

Signature

Second Signature*

SAF-134 · record IDs look like TRR-2026-000 · Links Loading dock check, Driver records

Open in Knowella

Run it with agents

From a document you fill in to a programme that runs itself

The record itself is short. What decides whether it protects anyone is whether the release order is actually enforced, whether an early departure attempt gets followed up, and whether a haulier whose drivers keep testing the control gets flagged before it becomes routine.

KnowSafe

Holds the restraint record against the register of docks and hauliers, and flags any record where restraint and key control fields do not move together.

KnowFleet

Connects trailer floor and landing gear findings to the haulier's own vehicle condition history, rather than treating them as one-off dock observations.

KnowLogistics

Feeds trailer arrival and change-over data from the yard log, so a restraint record is expected the moment a trailer is at the dock, not filled in after the fact.

Ella
Ella

Watches for early departure attempts and repeated not-checked restraint indicators across hauliers, and raises the pattern before an incident does.

This template lives in KnowSafe — safety and compliance. Incidents, hazards, permits, inspections and the critical controls behind them.

Meet KnowSafe→

Glossary

Trailer Restraint and Chock Record definitions and key terms

Vehicle restraint
A mechanical or hydraulic device that locks onto the trailer's rear underride bar or wheel, preventing it separating from the dock while a driver could still move it.
Wheel chock
A wedge placed against a wheel to stop a vehicle or an unattached trailer rolling, used with or instead of a restraint depending on the dock's fitted equipment.
Landing gear
The trailer's own support legs, extended once the tractor unit is uncoupled, and load-bearing before anyone works inside an unattached trailer.
Key or document control
Physically holding the driver's ignition key, or the paperwork he needs to leave, for the duration the trailer is being worked, so restraint cannot be defeated by simply driving off.
Early departure attempt
Any instance of a driver attempting to move the vehicle before it has been released, whether stopped by the restraint, by key control, or by intervention.

FAQ

Frequently asked questions about trailer restraint and chock record

Does the restraint on its own stop a trailer pulling away?+

Only if nothing has defeated it, and the most common way it gets defeated is the driver still holding his keys and simply driving off, restraint or not, on a dock without a hard interlock. Key or document control is what closes that gap, which is why the two fields are scored as a pair rather than independently.

What is the correct release order?+

Forklift withdrawn and confirmed clear, then restraint released, then keys or documents returned. Reversing any part of that order, especially returning the keys before the forklift is confirmed out, reopens the hazard the entry sequence was built to close.

Why does the record ask about the trailer floor and landing legs separately from restraint?+

Because a rotten or overloaded floor, or an unsupported trailer front, is a structural failure that restraint does nothing to prevent. A forklift can go through a bad floor with the trailer perfectly restrained. Both checks gate entry independently.

What should happen when Any Early Departure Attempt is marked yes?+

It should raise a case, using the Case ID link, rather than sit as a single field on an otherwise closed record. A yes here means the control was tested and either held or nearly failed, and that is worth more scrutiny than most other fields on the form combined.

Do both the loader and the driver need to sign, or is one enough?+

Both. The loader attests the site applied the control correctly; the driver attests he did not move the vehicle before release. A single signature only covers one side of the event, and a driver's account is exactly the version a restraint control exists to make unnecessary to rely on.

Is this the same thing as the dock's equipment check?+

No. The dock check confirms the dock's fixed equipment works in general. This record confirms one specific trailer was restrained and controlled for the load it is doing right now. A dock can pass its equipment check every shift while individual trailers on it are worked without this record ever being completed properly.

Keep going

Related templates and programmes

Industries this is written for

Siddarth Singh

Written and reviewed by

Siddarth Singh

Founder & Chief Executive Officer, Knowella

Certified Safety Professional and industrial and systems engineer with more than a decade inside food supply chain, freight and manufacturing operations. This page was written against the current text of the standards it cites, not against secondary summaries of them.

  • Certified Safety Professional (CSP), Board of Certified Safety Professionals
  • MBA, University of Chicago Booth School of Business
  • MS and BS, The Ohio State University, Industrial and Systems Engineering
  • Six Sigma Black Belt
Verify with BCSP →

Sources and last review. Reviewed 16 August 2026 against:

  • ISO 45001:2018 clauses 6.1.2, 7.5.3, 8.1 and 10.2
  • OSH Act Section 5(a)(1), General Duty Clause (US)
  • Workplace (Health, Safety and Welfare) Regulations 1992 (UK)
  • HSE guidance on workplace transport and loading bay safety

This page is general guidance, not legal advice. Confirm requirements with your jurisdiction’s regulator.

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