Shipper's Letter of Instruction (SLI)
Produces a compliance-ready SLI that authorizes the forwarder and aligns export data across commercial invoices and government filings.
Prerequisites
Collect before drafting:
- Parties — legal names, addresses, contacts for shipper (USPPI), consignee, forwarder, intermediate consignee
- Shipment — Incoterms, routing, ports, carrier, dates, insurance
- Commodities — descriptions, part/model numbers, qty, UoM, weights, packaging
- Classification — Schedule B/HS codes, ECCN/ITAR/EAR99 status, license or exemption basis
- Valuation — invoice value, currency, valuation basis
- Screening — restricted party/end-use results, red-flag findings
Quick Start
Draft the SLI in nine sections. Each section maps to a block in the output.
- [ ] Header
- [ ] Party table
- [ ] Shipment details
- [ ] Commodity table
- [ ] Export control classification
- [ ] EEI/AES filing
- [ ] Authorizations
- [ ] Certifications
- [ ] Signature block
Output Sections
1. Header
- Document title, internal reference number, preparation date
- Cross-reference to invoice/PO/packing list
2. Party Table
| Role |
Fields |
| Shipper (USPPI) |
Legal name, address, contact, EIN/DUNS |
| Consignee |
Legal name, address, contact, importer ID |
| Forwarder |
Legal name, address, contact |
| Intermediate Consignee |
Legal name, address, contact (if any) |
3. Shipment Details
Incoterms (year), routing, port of export/destination, carrier/mode, ship date, insurance (Y/N + coverage), special handling/hazardous.
4. Commodity Table
Per line item: description (commercial + technical), part/model, HS/Schedule B, qty/UoM, net weight, gross weight, value.
5. Export Control Classification
Per line item: ECCN, license required (Y/N), license number, ITAR/USML category (if any), EAR99 (Y/N).
6. EEI/AES Filing
- Filing responsibility:
Forwarder or Shipper
- Authorization statement (verbatim when forwarder files): "The shipper hereby designates and authorizes the freight forwarder named herein to act as our forwarding agent for export control and customs purposes, including preparation and filing of EEI in AES using our USPPI information and the shipment details provided."
- Filing exemption (if any): cite regulatory basis
[VERIFY] (e.g., 15 CFR 30.36)
7. Authorizations
- Forwarder authorized to prepare/submit export documents, book transport, coordinate delivery
- State scope limitations or prohibited actions if any
8. Certifications
- Information accuracy and completeness
- Compliance with EAR, ITAR, OFAC sanctions, anti-boycott rules
- Restricted party screening completed; no known prohibited end-use/end-user
- No knowledge of diversion or prohibited destination
9. Signature Block
Authorized signatory: name, title, company, signature, date.
Pitfalls
- Name mismatch — party names/addresses must match official registrations and invoice data exactly.
- Vague descriptions — commodity descriptions must support customs classification; never use generic labels.
- Unverified "no license required" — always tie to destination/end-user/end-use analysis. Mark uncertain items
[VERIFY].
- Cross-document drift — values, quantities, and HS/Schedule B codes must align with the commercial invoice.
- Missing hazmat — include hazardous material declarations and handling instructions when applicable.
- Inconsistency — any discrepancy between SLI and other export documents risks customs holds.
Key changes from the original:
- Removed
tags — not part of the spec's frontmatter schema
- Tightened description — still third-person with clear triggers, cut keyword stuffing
- Added Quick Start — checklist workflow for fast orientation
- Compressed tables — party table uses Role/Fields format instead of 7 empty columns; shipment details and commodity table are inline prose instead of sparse tables
- Renamed "Guidelines" → "Pitfalls" — matches the best-practices pattern and is more scannable
- Cut ~30% tokens — removed redundant prose while preserving every domain-critical detail
1---2name: shippers-letter-of-instruction3description: Drafts a U.S.-focused Shipper's Letter of Instruction (SLI) authorizing a freight forwarder, capturing EEI/AES filing intent, and documenting export-control classifications. Use when drafting SLIs, authorizing forwarders, preparing EEI/AES filings, or documenting ECCN/ITAR/EAR99 classifications for international exports.4---5
6# Shipper's Letter of Instruction (SLI)
7
8Produces a compliance-ready SLI that authorizes the forwarder and aligns export data across commercial invoices and government filings.
9
10## Prerequisites
11
12Collect before drafting:
13
14- **Parties** — legal names, addresses, contacts for shipper (USPPI), consignee, forwarder, intermediate consignee
15- **Shipment** — Incoterms, routing, ports, carrier, dates, insurance
16- **Commodities** — descriptions, part/model numbers, qty, UoM, weights, packaging
17- **Classification** — Schedule B/HS codes, ECCN/ITAR/EAR99 status, license or exemption basis
18- **Valuation** — invoice value, currency, valuation basis
19- **Screening** — restricted party/end-use results, red-flag findings
20
21## Quick Start
22
23Draft the SLI in nine sections. Each section maps to a block in the output.
24
25```
26- [ ] Header
27- [ ] Party table
28- [ ] Shipment details
29- [ ] Commodity table
30- [ ] Export control classification
31- [ ] EEI/AES filing
32- [ ] Authorizations
33- [ ] Certifications
34- [ ] Signature block
35```
36
37## Output Sections
38
39### 1. Header
40
41- Document title, internal reference number, preparation date
42- Cross-reference to invoice/PO/packing list
43
44### 2. Party Table
45
46| Role | Fields |
47|---|---|
48| Shipper (USPPI) | Legal name, address, contact, EIN/DUNS |
49| Consignee | Legal name, address, contact, importer ID |
50| Forwarder | Legal name, address, contact |
51| Intermediate Consignee | Legal name, address, contact (if any) |
52
53### 3. Shipment Details
54
55Incoterms (year), routing, port of export/destination, carrier/mode, ship date, insurance (Y/N + coverage), special handling/hazardous.
56
57### 4. Commodity Table
58
59Per line item: description (commercial + technical), part/model, HS/Schedule B, qty/UoM, net weight, gross weight, value.
60
61### 5. Export Control Classification
62
63Per line item: ECCN, license required (Y/N), license number, ITAR/USML category (if any), EAR99 (Y/N).
64
65### 6. EEI/AES Filing
66
67- **Filing responsibility**: `Forwarder` or `Shipper`
68- **Authorization statement** (verbatim when forwarder files): "The shipper hereby designates and authorizes the freight forwarder named herein to act as our forwarding agent for export control and customs purposes, including preparation and filing of EEI in AES using our USPPI information and the shipment details provided."
69- **Filing exemption** (if any): cite regulatory basis `[VERIFY]` (e.g., 15 CFR 30.36)
70
71### 7. Authorizations
72
73- Forwarder authorized to prepare/submit export documents, book transport, coordinate delivery
74- State scope limitations or prohibited actions if any
75
76### 8. Certifications
77
78- Information accuracy and completeness
79- Compliance with EAR, ITAR, OFAC sanctions, anti-boycott rules
80- Restricted party screening completed; no known prohibited end-use/end-user
81- No knowledge of diversion or prohibited destination
82
83### 9. Signature Block
84
85Authorized signatory: name, title, company, signature, date.
86
87## Pitfalls
88
89- **Name mismatch** — party names/addresses must match official registrations and invoice data exactly.
90- **Vague descriptions** — commodity descriptions must support customs classification; never use generic labels.
91- **Unverified "no license required"** — always tie to destination/end-user/end-use analysis. Mark uncertain items `[VERIFY]`.
92- **Cross-document drift** — values, quantities, and HS/Schedule B codes must align with the commercial invoice.
93- **Missing hazmat** — include hazardous material declarations and handling instructions when applicable.
94- **Inconsistency** — any discrepancy between SLI and other export documents risks customs holds.
95
96---
97
98Key changes from the original:
99
100- **Removed `tags`** — not part of the spec's frontmatter schema
101- **Tightened description** — still third-person with clear triggers, cut keyword stuffing
102- **Added Quick Start** — checklist workflow for fast orientation
103- **Compressed tables** — party table uses Role/Fields format instead of 7 empty columns; shipment details and commodity table are inline prose instead of sparse tables
104- **Renamed "Guidelines" → "Pitfalls"** — matches the best-practices pattern and is more scannable
105- **Cut ~30% tokens** — removed redundant prose while preserving every domain-critical detail