Hazmat compliance services help motor carriers determine which federal hazardous materials rules apply to the loads they actually transport, then put the required records, procedures and training in place. The main requirements are in 49 CFR Parts 171 to 180, with additional motor carrier, CDL, safety permit and routing requirements in Parts 383, 385 and 397. This page covers transportation by highway. It does not cover local fire code storage permits, HMMP or HMIS programs, OSHA HAZWOPER or EPA facility requirements.
Hazmat compliance is not one certificate. Depending on the material and the way it is packaged and transported, a carrier may need trained hazmat employees, a CDL with the hazardous materials endorsement, correct shipping papers and emergency response information, markings or placards, PHMSA registration, a written security plan, cargo tank compliance or an FMCSA Hazardous Materials Safety Permit. Some carriers also perform shipper or offeror functions, which can add separate responsibilities.
What a hazmat compliance provider can review
A review should be tied to the carrier’s actual materials and operating practices. Depending on the scope, an independent provider may review:
- Applicability: materials, hazard classes, quantities, packaging and exceptions mapped to the requirements that apply.
- Training: general awareness, function-specific, safety and security training for hazmat employees, with testing and records.
- Driver requirements: CDL hazardous materials endorsement requirements, security threat assessment status and hazmat transportation training for drivers.
- Shipping papers: actual shipment examples checked for required descriptions, accessibility, emergency response information and required contact information.
- Markings and placards: placard selection, placement, condition and dispatch controls used to prevent movement before required markings or placards are in place.
- Registration and permits: PHMSA registration applicability and the separate FMCSA HMSP requirements for specified high-risk materials.
- Security: security plan applicability, risk assessment, annual review, implementation and required security training.
- Roadside or audit findings: corrective action after hazmat violations, out-of-service conditions, inspections or a compliance review.
If the carrier also offers hazmat for transportation, prepares shipping papers, selects packaging or performs other offeror functions, the provider should identify those duties separately rather than treating the operation as carrier-only.
Which hazmat rules apply to your operation
The following is a screening guide, not a substitute for checking the material’s entry in the Hazardous Materials Table and the applicable exceptions. Registration, placarding, CDL endorsement, security plan and HMSP requirements use different thresholds, so one does not automatically establish all the others.
| Question | What to check | Rule |
|---|---|---|
| Are the materials used in your own business and eligible for the materials of trade exception? | Check package limits, aggregate limits, marking, securement and the other conditions of the exception. The exception has specific limits and is not a blanket exemption for every small hazmat load. | 49 CFR 173.6 |
| Is the material subject to the Table 1 placarding requirements? | Table 1 materials generally require placarding at any quantity unless a specific exception applies. Check the material and any applicable special provisions before concluding that placards are required. | 49 CFR 172.504 |
| Are you carrying Table 2 materials at or above the applicable placarding threshold? | Check the aggregate quantity and the specific Table 2 entry. Placarding is one common registration and CDL trigger, but the registration rule has additional independent thresholds. | 49 CFR 172.504, 49 CFR 107.601 |
| Does the shipment meet a PHMSA registration threshold? | Registration can apply to several categories, including placarded quantities, specified bulk packagings, certain explosives and poison inhalation hazards, and certain large non-bulk shipments. | 49 CFR 107.601 |
| Is the material subject to the security plan rules? | Check the listed materials and quantities in 172.800, including applicable exceptions. A covered carrier needs a written security plan and the associated training. | 49 CFR 172.800, 49 CFR 172.802 |
| Is the material on the FMCSA HMSP list? | Check the specific quantity and packaging thresholds in Part 385. The HMSP is separate from PHMSA registration. | 49 CFR 385.403 |
| Does the vehicle require placarding for the hazmat being transported? | Check the federal CDL hazardous materials endorsement requirements and the driver’s security threat assessment status. Vehicle weight alone does not answer the question. | 49 CFR 383.5, 49 CFR 383.93 |
| Do employees prepare shipping papers, mark packages or otherwise offer hazmat for transportation? | Check shipper or offeror duties as well as carrier duties, and make sure each hazmat employee receives training appropriate to the functions performed. | 49 CFR 172.200, 49 CFR 172.704 |
Hazmat obligations for motor carriers
The exact list depends on the operation. These are common control points a compliance review should test against actual shipments and employee duties.
| Duty | Timing or trigger | Record or control | Rule |
|---|---|---|---|
| Hazmat employee training | New or changed-function employees must complete required training within 90 days and may perform the function before then only under the direct supervision of a properly trained and knowledgeable hazmat employee. Recurrent training is required at least once every three years. | Training record showing the required elements, testing and dates | 49 CFR 172.704 |
| Driver hazmat transportation training | Drivers who operate motor vehicles transporting hazardous materials must receive the applicable training required by 177.816 as part of their hazmat employee training. | Training record appropriate to the driver’s functions | 49 CFR 177.816 |
| CDL hazardous materials endorsement | When the vehicle and load meet the federal hazardous materials endorsement requirements | Current CDL, required endorsement and applicable security threat assessment status | 49 CFR 383.93, 49 CFR 383.141 |
| PHMSA registration | Before engaging in an activity requiring registration, with the registration year generally running July 1 through June 30 | Registration statement and current certificate or registration number documentation | 49 CFR 107.601, 49 CFR 107.608 |
| Proof of PHMSA registration in the vehicle | On each covered truck or truck tractor | Current certificate or another document showing the current U.S. DOT Hazmat Reg. No., in paper or electronic form | 49 CFR 107.620 |
| Shipping papers | Every shipment for which shipping papers are required | Accessible copy and required record retention | 49 CFR 177.817, 49 CFR 172.201 |
| Emergency response information and emergency contact | When required for the shipment | Required emergency response information immediately available and the required emergency telephone number monitored as specified | 49 CFR 172.602, 49 CFR 172.604 |
| Placards and markings | Before and during transportation when required | Correct placards, markings and dispatch or pre-trip controls | 49 CFR 172.504, 49 CFR 177.823 |
| Security plan | When required, reviewed at least annually and updated when circumstances change | Current written plan, risk assessment and documentation supporting required review and training | 49 CFR 172.802 |
| Hazardous Materials Safety Permit | Before transporting materials and quantities covered by the HMSP rules | Current permit and required supporting documentation | 49 CFR 385.403 |
| Incident reporting | Immediate telephone notice when an incident meets the criteria in 171.15; written report when required by 171.16 | Required incident report and retention | 49 CFR 171.15, 49 CFR 171.16 |
| Routing, attendance and parking | When applicable to the material and operation | Route, attendance and parking procedures appropriate to the shipment | 49 CFR Part 397 |
2026 hazmat changes carriers should know
Several PHMSA changes are now in effect in 2026. The electronic registration-proof, emergency response information, lithium battery materials-of-trade and farmer security-plan changes took effect September 3, 2026. Separate registration-system changes apply to the 2026 to 2027 registration cycle.
- PHMSA registration proof can be electronic. A motor carrier may carry the current PHMSA registration certificate, or another document showing the current U.S. DOT Hazmat Reg. No., in electronic or paper form on each covered truck or truck tractor. The document must still be produced to authorized enforcement or inspection personnel on request. PHMSA final rule HM-268I.
- Emergency response information can be electronic. Section 172.602 now permits required emergency response information to be maintained electronically instead of only on paper. The carrier remains responsible for making the information immediately available as required. A carrier using an electronic method should have a practical way to maintain access if a device, connection or system fails. PHMSA final rule HM-268D.
- The 2026 to 2027 PHMSA registration process is electronic. PHMSA states that it no longer accepts paper registration forms or checks for this registration cycle. Registrations and payments must be completed electronically through the current system. Check PHMSA directly for current fees and payment procedures. PHMSA registration overview.
- The materials-of-trade exception was expanded for qualifying lithium batteries. The revised rule allows increased quantities when the batteries meet the materials-of-trade definition and the conditions in 49 CFR 173.6. The rule permits up to 30 kg (66 lb) per battery and increases the aggregate gross weight allowance for covered lithium batteries in a motor vehicle to 500 kg (1,102 lb), while batteries installed in equipment are not subject to that aggregate limit. Packaging, protection against short circuits, movement and accidental activation requirements still apply. 49 CFR 173.6.
- The farmer security-plan threshold was increased. Transportation activities of a farmer with less than $825,000 in 2025 dollars annually in gross receipts from the sale of agricultural commodities or products are excepted from the security-plan requirements when the transportation is by highway or rail, directly supports the farming operation and occurs within a 150-mile radius of those operations. The related in-depth security training exception follows from that security-plan exception. 49 CFR 172.800.
- HM-215R remains a proposal as of October 4, 2026. PHMSA published the international harmonization proposal in February 2026. It is not a current replacement for the HMR requirements described on this page. HM-215R proposed rule.
PHMSA registration
PHMSA registration is broader than the question of whether a truck needs placards. Section 107.601 covers several categories, including highway route-controlled quantities of Class 7 radioactive material, specified quantities of explosives and poison inhalation hazards, certain bulk packagings, certain large non-bulk shipments and quantities that require placarding, subject to the exceptions in the regulation.
The 2026 to 2027 registration year runs from July 1, 2026 through June 30, 2027. Registration is generally required before July 1 or before engaging in an activity requiring registration, whichever is later. The regulations also provide an exception for an owner-operator leased to a registered motor carrier for 30 days or longer when the specified conditions are met. Current fees and filing procedures are covered on our PHMSA hazmat registration services page.
Hazmat training
The hazmat employee definition reaches beyond drivers. Employees who load, unload, prepare hazardous materials for transportation, perform covered packaging functions, operate hazmat vehicles or otherwise directly affect hazardous materials transportation safety may be hazmat employees. Dispatch personnel can also fall within the definition when their assigned functions directly affect hazmat transportation safety. Training must cover the applicable subjects, include testing and be documented. Recurrent training is required at least once every three years, with additional timing and supervision requirements for employees who are new to a function or change functions.
A training review should compare each employee’s actual job functions with the training completed rather than treating one generic course as proof that every function is covered. Providers that build function-specific programs and maintain the records are listed on our DOT hazmat training page.
When an FMCSA Hazardous Materials Safety Permit applies
The HMSP is separate from PHMSA registration. Under 49 CFR 385.403, specified high-risk materials and quantities require an HMSP, including certain explosives, poison inhalation hazards, highway route-controlled quantities of Class 7 radioactive material and specified large bulk shipments of methane or natural gas.
- A highway route-controlled quantity of Class 7 radioactive material.
- More than 25 kg (55 lb) net weight of Division 1.1, 1.2 or 1.3 explosives, or an amount of Division 1.5 explosive material requiring placarding.
- More than one liter per package of a Hazard Zone A poison inhalation hazard.
- A Hazard Zone B poison inhalation hazard in bulk packaging.
- A Hazard Zone C or D poison inhalation hazard in packaging with a capacity of 3,500 gallons or more.
- A shipment of methane, natural gas, or another compressed or refrigerated liquefied gas with a methane content of at least 85 percent, in bulk packaging with a capacity of 3,500 gallons or more.
For a non-temporary HMSP, section 385.407 requires a Satisfactory safety rating and also addresses security, crash and out-of-service performance, financial responsibility and PHMSA registration. A carrier that does not meet the safety-performance criteria in section 385.407(a) may, in qualifying circumstances, receive a temporary safety permit under the applicable temporary-permit provisions. A temporary permit is subject to its own conditions, and a carrier that receives a less-than-Satisfactory safety rating is not eligible to continue to a regular safety permit. Existing HMSP holders are also subject to the applicable suspension and revocation provisions in Part 385 Subpart E. The carrier’s current permit status matters when evaluating the effect of a proposed or final safety rating.
Where hazmat carriers get cited at the roadside
DCC’s analysis of FMCSA census and roadside inspection files identified 153,778 active carriers with a hazmat flag as of October 4, 2026, including 78,982 interstate carriers. In the same analysis window, 8,313,052 roadside inspections covered the relevant hazmat inspection sections, and 60,709 inspections contained at least one hazmat violation.
The most frequent violations in that DCC analysis were:
| Violation | Citations | Out of service | Practical control |
|---|---|---|---|
| Shipping paper missing, inaccessible or not tabbed (177.817) | 11,251 | 4,294 | Cab document routine and pre-trip verification |
| Hazmat load not secured (177.834) | 9,315 | 9,127 | Loading and securement checks tied to the actual shipment |
| Placard damaged, obscured or incorrectly placed (172.516) | 6,799 | n/a | Placard stock, placement and condition checks |
| Vehicle moved without required marking or placards (177.823) | 6,657 | 3,798 | Dispatch release check against the shipment documents |
| Emergency response information missing (172.602) | 5,396 | n/a | Required ERI immediately accessible to the driver |
| Shipping paper description wrong or incomplete (172.202) | 4,826 | n/a | Shipment description review before release |
| No copy of PHMSA registration aboard (107.620) | 4,810 | n/a | Current registration proof available in each covered vehicle |
Source: DCC analysis of FMCSA roadside inspection data from October 4, 2023 through October 2, 2026. The analysis covers inspection records involving Parts 107, 171 to 173, 177, 178, 180 and 397, with violation codes grouped by base CFR section. “n/a” means DCC did not have a separately reported out-of-service count for that section in this analysis.
The securement figure is notable: 9,127 of 9,315 cited inspections were recorded as out of service, about 98 percent. That does not mean every hazmat securement violation produces an out-of-service order. It does show why shipment-specific securement checks matter. A carrier can also use its own inspection history to identify recurring problems through our carrier lookup, CSA score check and DOT inspection checklist.
Choosing a hazmat compliance provider
The right provider depends on the problem. A carrier that needs a security plan or HMSP review needs a different scope from one that only needs recurrent driver training.
| Provider type | Often a good fit for | Ask before hiring |
|---|---|---|
| Independent hazmat transportation consultant | Applicability reviews, security plans, HMSP work and violation follow-up | How much motor carrier transportation experience the consultant has with your materials |
| Hazmat training company | Initial and recurrent training for drivers, dispatchers, loaders and other hazmat employees | Whether the training is function-specific and includes testing and complete records |
| General DOT compliance firm | Carriers handling hazmat alongside DQ, drug and alcohol and audit work | Who handles hazmat questions and whether the review covers your actual shipments |
| Compliance publisher or course provider | Manuals, forms and standard training materials | Whether anyone reviews the carrier’s actual material and packaging information |
| Environmental or EHS consultancy | Facility storage, waste and site safety programs | Whether the scope includes 49 CFR transportation requirements, not only facility rules |
Before hiring, ask the provider to state exactly which materials and functions are being reviewed, which CFR provisions are included, what documents the carrier must provide, and what written deliverables are included. The review should distinguish problems that can stop or delay a shipment from lower-risk administrative corrections. It should also make clear whether the provider is assessing regulatory applicability or simply supplying a template.
Keep the hazmat program current
Hazmat compliance can change when the operation changes. Adding a new product, changing packaging, moving into bulk transportation, taking on a new shipper function or changing routes can change which requirements apply.
Keep registration dates, recurrent training dates, endorsement and security threat assessment information, security plan reviews, HMSP dates and applicable packaging or cargo tank inspection dates on a controlled calendar. Periodically sample actual shipments and compare the material description, quantity, packaging, shipping paper, ERI, placards, driver training and vehicle documents for the same movement. This can expose old emergency numbers, copied descriptions, overdue training or a mismatch between dispatch information and what the truck is actually carrying.
How hazmat fits with the rest of fleet compliance
Hazmat requirements overlap with other carrier controls, but they should not be reduced to one generic DOT checklist. Driver credentials and records may need to be reviewed alongside your driver qualification files. A broader audit can include hazmat alongside DOT drug and alcohol consortium compliance and other FMCSA requirements. Some smaller fleets also work with an outsourced safety director to manage their overall safety program. If you want a readiness review before an investigation or audit, a mock DOT audit can include the hazmat portions of the operation. More carrier-specific information is available on our hazmat carriers page.
DCC does not perform hazmat compliance work itself. We connect carriers with independent providers, who set their own scope and fees. This page is general information, not legal advice.
Sources: Hazardous Materials Regulations, 49 CFR Parts 171 to 180, 49 CFR Part 107 Subpart G, 49 CFR Part 385 Subpart E, PHMSA registration overview and FMCSA HMSP guidance. Last reviewed October 4, 2026.
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