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NMFC Resources

The National Motor Freight Classification® (NMFC)™ is the baseline for LTL freight identification and classification. Here you’ll find the NMFC manual, supplements, and the official text you need to classify accurately.

Use this when: you need the source-of-truth language for an item or rule.

Explore Here

Who Should Participate

Not sure if your company needs to be part of the NMFC system? This guide explains participation requirements and who should register—carriers, shippers, third-party logistics providers (3PLs), and brokers included.

Use this when: you’re onboarding a new operating entity or formalizing your systems.

Learn About Participation

NMFC Standards

Standards define LTL packaging, commodity descriptions, and freight class used across the industry. This section clarifies definitions, rules, and the operational standards that keep LTL freight classification consistent.

Use this when: you need clarity on definitions or packaging thresholds tied to NMFC items.

Read the Standards

Freight Classification Development Council (FCDC)

The FCDC is the expert body that develops and maintains classification provisions in the NMFC. Learn how the Council evaluates proposals, the criteria they use, and how council rulings shape classification practice.

Use this when: you want to understand how classification policy is established. 

Amending the NMFC

Need to propose a change? This section explains the proposal process—how to submit amendments, what evidence is required, timelines, and how decisions are made.

Use this when: you’re proposing a new item, packaging rule, or an update to existing language.

Classification Resource Committee (CRC)

The CRC supports the FCDC with research, operational insights, and technical guidance. It’s where LTL carrier practitioners help translate field experience into classification improvements.

Use this when: you want to participate in research and contribute practical input.

Classification Assistance & Interpretations

When commodity details aren’t clear, NMFTA experts provide interpretations: written, research-backed opinions on which NMFC item applies. Submit your item details and get authoritative guidance to avoid disputes and reclassifications.

Use this when: you need a definitive classification opinion on a specific commodity.

Classification Research Projects

NMFTA conducts ongoing research to test LTL packaging, validate classification assumptions, and improve the NMFC. Explore current and past projects, lab results, and how research translates into better rules and safer shipments.

Use this when: you need the data behind classification decisions or want to propose a study.

Packaging

LTL packaging rules are fundamental to correct classification. This section outlines performance-based testing, approved package types, and how to register labs and tested packages with the FCDC.

Use this when: you’re designing packaging or pursuing Item 180/181 performance certification.

Training and Education

Classification is technical, and proficiency matters. NMFTA offers webinars, courses, and training that teach classification fundamentals, ClassIT+™ usage, and best practices for classification management.

Use this when: you want your team upskilled quickly.

See Training Options

Video: How to Class Freight

Prefer a guided walkthrough? Watch our practical video that explains the classification process step-by-step—from determining density to selecting the correct NMFC item.

Need Additional Help?

If you’re not sure which resource fits best, our classification team can point you in the right direction—whether that means an interpretation, training, or a research request.

Contact the Classification Team