Cargo Securement Rules

Quick Answer

Cargo securement rules are about preventing cargo from shifting, falling, leaking, spilling, or making the vehicle unstable. The federal rule is the starting point; company policy, shipper instructions, and state enforcement may add stricter steps.

What this means in practice

Start with the load: weight, shape, packaging, center of gravity, and how it can move. Then identify whether the current federal rule has a commodity-specific section for that freight.

For unusual freight, do not force a familiar strap pattern onto the load. Treat the securement plan as a system: tiedowns, blocking, bracing, friction, containment, and documentation.

Common mistakes

Common misses include relying on strap count alone, overlooking a low-rated anchor point, letting edge damage hide under a tarp, and skipping documentation when a trailer is sealed before inspection.

Another quiet mistake is using an old printed rule summary without checking whether the current eCFR text or company policy has changed.

What this page does not cover

This page does not train a driver to secure a live load. It does not cover hazmat, oversize permitting, state-specific enforcement practice, or customer contract requirements.

Source notes

Primary rule statements are gated to FMCSA and eCFR sources. When this site uses general safety language, it stays separate from a stated federal requirement.

What the federal rule covers

49 CFR Part 393 Subpart I covers protection against shifting and falling cargo on commercial motor vehicles operating in interstate commerce. It establishes general performance criteria for cargo securement, sets standards for securement systems and individual tiedown devices, and includes commodity-specific sections for certain cargo types.

The FMCSA overview at fmcsa.dot.gov is a useful orientation, but the eCFR text is the controlling source for the actual rule. State enforcement agencies, carrier policies, shipper requirements, and equipment manufacturer instructions may impose stricter or additional requirements.

The basic performance standard in 49 CFR 393.100 requires that cargo be secured against the forces of normal driving — forward, rearward, lateral, and vertical. Meeting that standard requires more than counting tiedowns.

The structure of Part 393 Subpart I

The subpart begins with definitions and general performance criteria (§393.100–§393.106), then covers tiedown requirements including working load limit and number of tiedowns (§393.108–§393.110), then specific equipment types such as front end structures and blocking (§393.112–§393.114), and finally commodity-specific sections (§393.116–§393.136).

The commodity sections cover logs (§393.116), dressed lumber and building products (§393.118), metal coils (§393.120), paper rolls (§393.122), concrete pipe (§393.124), intermodal containers (§393.126), automobiles and light trucks (§393.128), heavy vehicles and equipment (§393.130), flattened or crushed vehicles (§393.132), roll-on/roll-off containers (§393.134), and large boulders (§393.136).

A load that falls under one of these commodity sections must meet the requirements of that section in addition to the general requirements. The commodity section does not replace the general requirements — it adds to them.

General versus commodity-specific requirements

Many cargo types do not have a dedicated commodity section. Steel beams, machinery parts, pipe bundles, palletized freight, and sealed trailers are governed by the general performance criteria and tiedown rules, not by a named commodity section.

For those loads, the securement plan must meet the general performance criteria (containing and immobilizing the cargo) and the tiedown rules (adequate WLL, correct number of tiedowns based on length and weight, devices in serviceable condition). Getting this wrong because no specific table applies is a common enforcement error.

The cargo pages on this site identify whether a commodity type has a specific federal section or falls under general requirements. If the commodity is general reference, the page says so and does not imply a closer source fit.

The driver duty under 49 CFR 392.9

Part 393 Subpart I sets the equipment and securement system standards. A separate regulation — 49 CFR 392.9 — creates the driver's ongoing duty to inspect and maintain those standards during the trip.

Under 392.9, a driver must examine cargo and securement devices before departure, within the first 50 miles, and every 3 hours or 150 miles thereafter (whichever comes first). Knowing the Part 393 equipment rules is not enough; the inspection duty under 392.9 continues throughout the trip.

Both regulations apply to a compliant operation. The driver reinspection requirements page covers 392.9 in detail.

How to use this site

Use this page as a map, not as a complete reference. Start by identifying whether the cargo type has a commodity-specific section. Then review the general performance requirements and tiedown rules. Then check whether company policy, shipper instructions, or equipment manufacturer guidelines add further requirements.

Each topic page on this site links to the primary eCFR source. Use those links to read the current regulation before applying anything from this site to a live load. If the rule and this page's description conflict, the regulation controls.

For a field-ready checklist, see the pre-trip cargo securement checklist. For tiedown planning tools, see the tools section.

Practical Notes

This topic carries elevated securement risk. Verify the current eCFR rule text, carrier policy, shipper requirements, manufacturer ratings, and the physical condition of every device before a truck moves.