Shipper’s Letters of Instruction detail shipment requirements, from origin to destination, and are crucial for international trade compliance.
These documents ensure smooth logistics and adherence to regulations.
What is a Shipper’s Letter of Instruction?
A Shipper’s Letter of Instruction (SLI) is a comprehensive document outlining all the exporter’s requirements for a shipment. It serves as formal instruction to the freight forwarder, detailing how to handle the goods from pickup to final delivery. Essentially, it’s a blueprint for the entire shipping process. The SLI isn’t a transport document itself, but rather a set of instructions about the shipment.
It details crucial information like the consignee, shipper details, a precise description of the goods, packaging specifics, weights, measurements, and origin/destination details. Properly completed SLIs are vital for accurate documentation and smooth customs clearance, preventing costly delays and ensuring compliance with international trade regulations.
Purpose and Importance of an SLI
The primary purpose of an SLI is to empower the freight forwarder to act on behalf of the shipper, ensuring the shipment adheres to all legal and regulatory requirements. It’s particularly critical when a Power of Attorney is involved, granting the forwarder authority to sign documents. An accurate SLI minimizes errors, avoids penalties, and facilitates efficient customs clearance.
Its importance stems from its role in international trade compliance. A well-prepared SLI guarantees all necessary information is provided upfront, streamlining the export process. This document is essential if the shipper requires specific handling instructions or if the goods are being exported from a Foreign Trade Zone (FTZ). Ultimately, the SLI protects the shipper’s interests and ensures a successful export.

Key Parties Involved in an SLI
Key parties include the U.S. Principal Party in Interest (USPPI), responsible for the SLI’s accuracy, and the freight forwarder/carrier, executing shipment instructions.
USPPI (U.S. Principal Party in Interest)
The USPPI holds significant responsibility within the SLI process. This entity, the seller or exporter, is legally obligated to ensure all information provided on the Shipper’s Letter of Instruction is truthful and accurate. They must diligently review details, especially when any uncertainty exists regarding applicable provisions.
A signed SLI, authorized by a representative of the USPPI, is mandatory under specific conditions, such as when a Power of Attorney is utilized. The USPPI’s commitment to accuracy is paramount for compliant international shipments, avoiding potential delays or penalties. Their signature validates the information’s integrity.
Freight Forwarder & Carrier
Freight forwarders act as intermediaries, executing the shipper’s instructions detailed within the SLI. They coordinate transportation, handle documentation, and ensure compliance with international shipping regulations. The carrier, whether operating via air, ocean, truck, or rail, physically transports the goods.
Crucially, the freight forwarder – like Nippon Express USA, Inc; – requires authorized signatures in specific boxes (33 & 34) on the SLI to legally execute the provided instructions. Without these signatures, the forwarder cannot proceed. Both parties rely on the SLI as the definitive guide for a successful and legally sound shipment process.

Essential Elements of an SLI ౼ General Information
A comprehensive SLI includes shipper and consignee details, a precise description of goods, package counts, weights, measurements, and crucial shipping marks.
Consignee and Shipper Details
Accurate identification of both the shipper and consignee is paramount within the SLI. The shipper’s section requires the complete legal name, address, and contact information – ensuring clear origin details. Similarly, the consignee’s details, including their full legal name, address, and contact number, must be meticulously provided for proper delivery and customs clearance.
These details facilitate seamless communication throughout the shipping process. Incorrect or incomplete information can lead to significant delays, penalties, or even shipment rejection. Therefore, double-checking these entries is a critical step in preparing a valid and effective Shipper’s Letter of Instruction.
Description of Goods
A comprehensive description of the goods being shipped is a cornerstone of the SLI. This section demands more than just a general categorization; it requires specific details about each item. Include the precise name, type, and intended use of the merchandise. Avoid vague terms like “parts” or “samples” – instead, specify “Automotive brake pads” or “Textile fabric swatches”.
Detailed descriptions are vital for accurate customs declarations and tariff classifications. This minimizes the risk of delays and ensures compliance with import/export regulations. The description should be clear, concise, and unambiguous, leaving no room for misinterpretation by customs officials or other parties involved in the shipment.

Detailed Goods Information
Precise details regarding packages, weights, and measurements are essential for proper handling and accurate freight calculations within the SLI.
Number and Kind of Packages
Accurately specifying the number and type of packages is a fundamental component of the Shipper’s Letter of Instruction (SLI). This section demands a clear delineation of each package – whether they are cartons, crates, drums, pallets, or any other form of containment.
The SLI requires a precise count of each package type. For example, “10 cartons, 5 crates.” Beyond simply stating the quantity, it’s vital to describe the nature of the packaging itself. This detailed information aids in proper handling, stowage, and ultimately, the safe and efficient transport of the goods. Incorrect package details can lead to delays, damage, and increased costs.
Gross Weights (kg) and Measurements (m3)
Providing accurate gross weights (in kilograms) and measurements (in cubic meters) is essential for freight costing, vessel/aircraft loading, and overall shipment planning. The SLI requires the total gross weight of all packages combined, including the weight of the packaging materials themselves.
Measurements are equally critical, representing the total volume occupied by the shipment. These figures directly impact freight charges, particularly for ocean freight where space is a primary factor. Inaccurate weights or measurements can result in significant discrepancies, leading to adjustments in costs and potential delays at customs. Precise data ensures smooth processing and avoids unexpected fees.
Shipping Marks & Numbers
Shipping marks and numbers are unique identifiers applied to each package within a shipment, crucial for tracking and proper handling. These markings should be clearly visible, durable, and conform to carrier specifications. They typically include a combination of letters, numbers, and symbols, often referencing the consignee, purchase order number, or specific shipment details.
Accurate and consistent application of shipping marks is vital for preventing misrouting and ensuring packages reach their intended destination efficiently. The SLI requires a detailed listing of these marks and numbers, allowing freight forwarders and carriers to easily identify and manage each individual package throughout the transportation process.

Origin and Destination Details
Origin and destination details on the SLI specify the manufacturing country and final delivery point, impacting duties and compliance requirements.
Country of Origin (Manufacture)
Accurately identifying the country of origin is a critical component of the Shipper’s Letter of Instruction (SLI). This information directly impacts duty assessments, trade regulations, and potential import restrictions. The SLI requires the shipper to explicitly state the country where the goods were manufactured, not simply where they were assembled or processed.
Incorrectly declaring the origin can lead to significant penalties, delays in customs clearance, and even legal repercussions. It’s essential to verify this information with the manufacturer or supplier to ensure complete accuracy. This detail is often found on commercial invoices and packing lists, serving as supporting documentation for the SLI.
Transportation and Exportation from a FTZ
When goods are transported from a Foreign Trade Zone (FTZ), specific details must be included on the Shipper’s Letter of Instruction (SLI). FTZs offer unique customs advantages, but require careful documentation for exportation. The SLI needs to clearly indicate if the goods originated within the FTZ or were merely in transit through it.
This section ensures proper tracking and compliance with FTZ regulations. Details regarding the FTZ number and any specific permits or authorizations used during storage or processing within the zone are often required; Accurate reporting is vital to maintain the benefits associated with utilizing an FTZ for international trade operations.

Legal and Compliance Aspects
SLIs demand a certification of accuracy, affirming all provided information is truthful and correct, ensuring adherence to export regulations and legal standards.
Certification of Accuracy
The certification of accuracy within the Shipper’s Letter of Instruction (SLI) is a critical component, legally binding the shipper to the veracity of all declared details. This statement affirms that all information provided – encompassing descriptions of goods, quantities, weights, values, and origin – is true, correct, and complete to the best of the shipper’s knowledge.

Where any uncertainty existed regarding applicable export provisions, the shipper explicitly confirms they undertook a diligent review to ensure full compliance. This certification isn’t merely a formality; it carries significant legal weight, protecting all parties involved in the shipment process from potential penalties or legal repercussions stemming from inaccurate or misleading declarations. A properly executed certification demonstrates a commitment to ethical trade practices and regulatory adherence.
Power of Attorney (When Required)
A Power of Attorney (POA) becomes necessary within the Shipper’s Letter of Instruction (SLI) process under specific circumstances. Primarily, it’s required if the shipper delegates authority to a freight forwarder to act on their behalf, particularly concerning export documentation and compliance. This delegation is essential when the shipper isn’t directly handling the export process.
The POA grants the forwarder the legal power to sign export declarations, such as the Electronic Export Information (EEI) filing, using the shipper’s identification. It’s crucial the POA is properly documented and signed by a duly authorized representative of the shipper. Without a valid POA, the forwarder may be unable to legally execute the shipment instructions, potentially causing delays or non-compliance issues.

Signature Requirements
Signatures in boxes 33 and 34 of the SLI are absolutely essential for Nippon Express USA, Inc. to legally execute shipment instructions effectively.
Importance of Signatures in Boxes 33 & 34
The signatures required in boxes 33 and 34 of the Shipper’s Letter of Instruction (SLI) are not merely a formality; they represent legal authorization. Without these signatures, Nippon Express USA, Inc., or any designated carrier, lacks the necessary permission to proceed with the shipment as instructed.
These signatures confirm that the shipper, or a duly authorized representative of the U.S. Principal Party in Interest (USPPI), acknowledges and approves all details outlined within the SLI. This includes the description of goods, routing, and compliance with export regulations. Essentially, it’s a binding agreement allowing the freight forwarder to act on the shipper’s behalf, ensuring a legally sound and compliant export process.
Authorized Representative Signature
When a Shipper’s Letter of Instruction (SLI) is not signed by the actual shipper, the signature of an authorized representative is essential. This representative must possess the legal authority to bind the U.S. Principal Party in Interest (USPPI) to the instructions detailed within the document;
This authorization is often established through a Power of Attorney (POA), granting the representative the power to act on the shipper’s behalf regarding export-related matters. The signature demonstrates acceptance of responsibility for the accuracy of all information provided and confirms the shipper’s commitment to comply with all applicable export regulations. Proper documentation of this authorization is crucial for a smooth and legally compliant shipment process.

Modes of Transport Covered by SLI
SLIs facilitate shipments via air, ocean, truck, and rail, ensuring clear instructions for freight forwarders regardless of the chosen transportation method.
Air Freight
For air freight shipments, the Shipper’s Letter of Instruction (SLI) is particularly vital due to the speed and stringent security requirements of air transport. Accurate details regarding the goods, including weight and dimensions, are essential for calculating freight charges and ensuring compliance with airline regulations. The SLI must clearly specify if the shipment contains any dangerous goods, adhering to IATA (International Air Transport Association) guidelines.
Complete and accurate documentation, facilitated by a well-prepared SLI, minimizes delays and potential penalties. It’s crucial to provide the correct Harmonized System (HS) code for proper customs clearance. The SLI serves as the primary communication tool between the shipper and the freight forwarder, ensuring a seamless and efficient air cargo process.
Ocean Freight
When utilizing ocean freight, the Shipper’s Letter of Instruction (SLI) is fundamental for coordinating the complex logistics of sea transport. Detailed information on the cargo, including its nature, value, and weight, is critical for accurate freight classification and billing. The SLI must also specify the container type required (e.g., 20ft, 40ft) and any special handling instructions, such as temperature control or hazardous material declarations.
Compliance with international maritime regulations, like those set by the IMO (International Maritime Organization), is paramount. A correctly completed SLI ensures smooth customs clearance at both the origin and destination ports, preventing costly delays. It’s the shipper’s responsibility to provide a precise and comprehensive SLI to the freight forwarder.
Truck & Rail Transport
For shipments moving via truck or rail, the Shipper’s Letter of Instruction (SLI) serves as the primary communication tool between the shipper and the carrier. It details crucial information like pick-up and delivery addresses, contact persons, and any specific access requirements at either location. Accurate weight and dimension details are vital for load planning and ensuring compliance with road and rail weight restrictions.
The SLI should also specify any special handling needs, such as liftgate service or inside delivery. Clear instructions regarding loading and unloading procedures are essential for safe and efficient transport. Proper completion of the SLI minimizes the risk of delays, damage, or incorrect delivery, streamlining the inland transportation process.

decibullz instructions
lego snowman instructions
weber spirit 2 assembly instructions
dtf care instructions
honda radio / navigation code retrieval and reset instructions
rough country installation instructions
sample shipper’s letter of instruction
aerogarden user guide
honeywell rth2300 operating manual