Related Glossary
What Is SCAC?
The Standard Carrier Alpha Code (SCAC) is a unique two-to-four-letter code used to identify transportation carriers in freight and logistics operations.
It is issued and maintained by the National Motor Freight Traffic Association (NMFTA) and is widely used across shipping documents, customs filings, EDI transactions, and logistics systems.
In freight and supply chain operations, SCACs provide a standardized way to identify carriers across multiple systems, ensuring consistency, accuracy, and interoperability between shippers, carriers, freight forwarders, ports, and regulatory authorities.
Key Points
Unique Carrier Identification
Each SCAC uniquely represents a carrier, eliminating ambiguity in documentation and system records.
Industry-Wide Standard
Used across road, rail, ocean, and intermodal transportation.
Critical for Electronic Data Exchange
SCACs are commonly required in EDI messages, TMS, and port systems.
Mandatory for Certain Filings
Required in U.S. customs filings such as AMS, ISF, and ACE.
System Integration Friendly
Enables seamless data exchange between logistics platforms and stakeholders.
Benefits and Challenges
Benefits
Improved Data Accuracy
Standardized carrier identification reduces manual errors and mismatches.
Faster Processing and Compliance
Simplifies customs filings, port submissions, and regulatory reporting.
Enhanced Operational Visibility
Clear carrier identification improves tracking, reporting, and performance analysis.
Interoperability Across Systems
Ensures consistency across ERP, TMS, WMS, and freight management systems.
Operational Efficiency
Reduces delays caused by incorrect or inconsistent carrier references.
Challenges
Registration and Renewal Requirements
SCACs must be obtained and renewed annually through NMFTA.
Limited to Registered Carriers
Only carriers with valid SCACs can be referenced in regulated filings.
Dependency on Accurate Mapping
Incorrect SCAC usage can result in filing rejections or compliance issues.
Regional Applicability
Primarily required for U.S.-bound or U.S.-regulated freight movements.
Example Scenario
A freight forwarder manages U.S.-bound ocean shipments using SCAC.
Carrier Booking
Each ocean carrier is selected using its assigned SCAC.
Documentation
The SCAC is included in the bill of lading and shipping instructions.
Customs Filing
SCAC is used in AMS and ISF submissions to U.S. Customs.
System Integration
The SCAC ensures consistent carrier identification across TMS and port systems.
Audit and Reporting
Carrier performance and shipment history are tracked using SCAC references.
Conclusion
The Standard Carrier Alpha Code (SCAC) is a foundational identifier in modern logistics operations. By standardizing carrier identification across documents and systems, SCAC improves accuracy, compliance, and operational efficiency in complex, multi-party supply chain environments.
Frequently Asked Questions (FAQs)
1.Who issues SCAC codes?
SCACs are issued and maintained by the National Motor Freight Traffic Association (NMFTA).
2.Is SCAC mandatory for all shipments?
SCAC is mandatory for certain U.S. customs filings and port operations, but may not be required for all domestic shipments.
3.How long is a SCAC code valid?
SCACs must be renewed annually to remain active and valid.