Prevention FAQ — FMCSR 173.35(a) Intermediate Bulk Container Requirements

Fleet guidance on intermediate bulk container compliance. Based on 5 all-time citations across 13M+ inspections. Covers inspection focus areas, pre-trip procedures, documentation, and root-cause analysis.

Severity Weight
8
OOS Eligible
No
BASIC Category
Hazardous Materials
Code System
FMCSR
Code:
173.35(a)
Code System:
FMCSR
BASIC Category:
Hazardous Materials
OOS Eligible:
No
Severity Weight:
8
Violation Group:
Package Integrity - HM

Ranks #2,428 of 3,146 FMCSR codes by citation frequency • OOS rate of 0.0% is below the FMCSR-wide average of 33.3%.

Violation Description

Intermediate bulk container requirements

Prevention FAQ for Fleet Managers

Pre-trip discipline, inspector focus, and root-cause fixes

What specific intermediate bulk container (IBC) issues do roadside inspectors focus on?

Across our 13 million inspection records, 173.35(a) citations are extremely rare—only 5 all-time, with zero citations in the last 12 months. This low enforcement volume means inspectors encounter IBC violations infrequently enough that when they do cite them, they represent either clear-cut defects or secondary findings during a larger hazmat inspection. Inspectors typically examine IBC structural integrity, closure systems, pressure relief devices, and marking/labeling. Since no citations occurred in the last 90 days, your fleet's risk is modest, but IBC defects—when found—pose genuine product and safety risks. Focus your team on visual condition checks and proper certification documentation.

What should our pre-trip checklist include to prevent 173.35(a) citations?

Create a dedicated IBC section in your hazmat pre-trip form:

  • Structural integrity: Check for dents, cracks, corrosion, or deformation that could affect containment.
  • Closure system: Verify the cap, valve, or bung is secure and functional; test for leaks if protocol permits.
  • Pressure relief: Confirm the pressure relief device (if required) is present, accessible, and not blocked.
  • Markings & labels: Ensure proper hazard labels and certification markings are present, legible, and not obscured.
  • Documentation: Confirm shipper's declaration and IBC certification are on board.

Have drivers initial each checkpoint. Given the rarity of these citations in your fleet, this checklist serves as both prevention and documentation of due diligence if an issue arises.

What documentation must drivers carry and carriers retain for IBC shipments?

Drivers must carry:

  • Shipper's Declaration for Dangerous Goods (or hazmat shipping paper).
  • Proof of IBC certification or design type approval.
  • Maintenance/repair records if the IBC has been reconditioned.
  • Emergency Response information (Hazmat Table reference or TREM card).

Carriers must retain:

  • Copies of all shipping papers for the retention period mandated by DOT (typically 375 days).
  • Training records showing drivers understand IBC placarding and load security.
  • Vehicle inspection reports (pre-trip and post-trip) documenting IBC condition.
  • Any maintenance or repair invoices related to IBCs used in your fleet.

Organize these by shipment date and vehicle ID for quick retrieval during audits or investigations.

What root causes should we investigate if we receive a 173.35(a) citation?

Although co-occurring violation data is limited for this rare code, peer violations in the Hazardous Materials category reveal patterns. General loading/unloading defects (177.834A-HMC, 3,954 citations; 177.834(a), 3,839 citations) dominate hazmat enforcement and carry 99.2% and 97.9% OOS rates respectively. If your 173.35(a) citation occurred alongside either, suspect inadequate shipper-carrier communication about IBC condition before load acceptance, or driver unfamiliarity with IBC-specific securing and handling.

Conduct a root-cause review asking: (1) Did the driver visually inspect the IBC before accepting the load? (2) Did the shipper certify the IBC's condition in writing? (3) Was the loading/unloading method documented? Correcting shipper communication and driver IBC familiarization closes most gaps.

How should we verify repairs or certification before an IBC-carrying vehicle returns to service?

Establish a three-step verification process:

  1. Visual Re-inspection: Have a designated safety officer (not the driver) physically examine the repaired or reconditioned IBC against the checklist. Photograph the condition and file images with the repair invoice.

  2. Certification Review: Obtain written confirmation from the repairer or reconditioner that the IBC meets DOT design and maintenance standards. Require their signature and certification number.

  3. Documentation: Create a vehicle-level repair log recording the date of repair, defect corrected, repairer identity, and sign-off name/date. Before the vehicle is dispatched, verify this log is on board and legible.

Given zero OOS rates for this code (versus 31.4% FMCSR average), your risk of regulatory action is low—but a documented repair process protects your carrier record and demonstrates due diligence.

What post-citation review should we conduct if a 173.35(a) violation is issued?

If cited, conduct a fleet-wide review within 48 hours:

  1. Identify all IBCs in service: List every intermediate bulk container your fleet uses or regularly transports. Our data shows Eagle Tech LLC (2 citations) and three other carriers were cited; check whether your fleet operates similar IBC types or routes.

  2. Inspect every in-service IBC: Do not wait for the next shipment. Physically inspect all IBCs, document findings in writing, and photograph defects.

  3. Driver notification & retraining: Brief all drivers on the violation. Review the specific defect(s) that triggered the citation and explain why the pre-trip checklist would have caught it.

  4. Shipper communication: Contact shippers regularly used for IBC loads and reinforce the expectation that all IBCs arrive in good condition and properly certified.

  5. Documentation: Archive the citation, your response, inspection photos, and any corrective actions. This record demonstrates your commitment to compliance if future violations occur.

Does 173.35(a) affect our CSA Vehicle Maintenance BASIC score?

No, 173.35(a) does not trigger an out-of-service order—our data shows a 0.0% OOS rate across all 5 citations, versus the 31.4% FMCSR average. This means the violations do not immediately remove vehicles from service and do not directly impact your CSA Vehicle Maintenance BASIC. However, citations still appear on your carrier profile and contribute to your FMCSR hazmat compliance visibility during audits. With only 5 all-time citations ranked #2406 out of 3,036 codes, this violation is uncommon. Your priority is documentation and prevention; the regulatory impact is minimal unless citations accumulate or are paired with serious OOS violations.

What driver training topics should we prioritize for IBC hazmat loads?

Design training around three core topics:

  1. IBC visual inspection: Teach drivers the specific defects to watch for—dents, cracks, valve leaks, blocked pressure relief—and the difference between acceptable wear and unacceptable damage. Use photos from your fleet or DOT resources.

  2. Hazmat packaging classification: Ensure drivers understand which hazmat classes use IBCs (organic peroxides, certain liquids, gases) and why IBC condition matters more for those than for other containers.

  3. Documentation: Train drivers on what papers must accompany an IBC shipment, how to verify shipper's declaration matches the load, and what to do if certification is missing.

Our data shows Ford vehicles were involved in 1 citation; if your fleet uses Ford chassis for hazmat, consider Ford-specific training modules on securing methods and weight distribution for IBC loads. Annual refresher training is sufficient given the low citation rate; focus on scenario-based exercises ("You find a dented IBC—what's your next step?").

When should we consider filing a DataQs challenge for a 173.35(a) citation?

File a DataQs challenge if:

  • The IBC was not in your possession or control at the time of inspection. If the shipper remained responsible for the IBC or you accepted it on consignment, argue the citation belongs to the shipper, not your carrier.

  • Documentation proves the IBC was certified and inspected immediately before loading. Provide photos, shipper's certificate, and pre-trip inspection records.

  • The cited defect was pre-existing and disclosed to the driver in writing. For example, if a shipper noted a minor cosmetic dent but certified the IBC safe, your compliance documentation may support a challenge.

  • The inspector's photograph shows no defect or misunderstands IBC design. Have a qualified hazmat consultant review the violation photo.

With only 5 all-time citations, each is individually scrutinized. A well-documented challenge is proportionally more likely to succeed than for high-volume codes. Consult a hazmat compliance attorney before filing.

How often should we self-audit for 173.35(a) compliance?

Audit frequency depends on your IBC shipping volume. Our data shows zero citations in the last 90 days and zero in the last 12 months, indicating this is an exceptionally rare violation. However:

  • High-volume IBC carriers (shipping 10+ IBC loads per month): Conduct monthly self-audits of 10% of IBC shipments, plus quarterly full-fleet IBC inspections.

  • Moderate-volume carriers (1–9 IBC loads per month): Audit every IBC shipment for the first three months, then quarterly thereafter.

  • Low-volume carriers (fewer than 1 per month): Inspect every IBC before and after each load; annual fleet-wide verification is sufficient.

The 12-month vs. 90-day trend (both zero) shows this risk is dormant across the industry. Use audits primarily as a training tool and evidence of due diligence. Document all audits—inspection date, IBC identification, condition, any issues—and retain for three years. This record protects your carrier profile during FMCSA reviews.

Last updated: 2026-04-20T17:13:54.421Z Guidance derived from TruckCodex inspection data Read the full article → Quick Q&A →

Data sources & freshness

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Census, SAFER, SMS, Licensing & Insurance (L&I), roadside inspections, crashes, and authority history.

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Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).

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EIA

Retail diesel and gasoline price history and state fuel-tax tables.

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Cross-border carrier registry and Canadian recall campaigns where applicable.

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