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Comparing Walmart's SCS program and the U.S. C-TPAT certification for supplier security compliance
Overview: Two Programs, One Goal
Both SCS (Supply Chain Security) and C-TPAT (Customs-Trade Partnership Against Terrorism) are supply chain security programs, but they serve different purposes and operate under different authorities. Understanding their differences is essential for suppliers navigating Walmart's compliance requirements while also seeking broader supply chain security recognition.
The most important relationship between the two: C-TPAT certification qualifies as Option 4 under Walmart's SCS program, meaning suppliers with C-TPAT Tier I, II, or III certification can waive the need for a separate SCS factory audit.
Head-to-Head Comparison
| Dimension | SCS (Walmart) | C-TPAT (CBP) |
|---|---|---|
| Operator | Walmart (retailer) | U.S. Customs & Border Protection (government) |
| Year Established | Ongoing program (current guidance 2024) | November 2001 |
| Scope | Walmart direct import supply chain only | All U.S. import supply chains (11,000+ participants) |
| Type | Retailer compliance program (color ratings) | Government certification (3 tiers) |
| Cost | Supplier pays audit fees (varies by option) | Free to join (CBP official: no fees) |
| Security Standards | CBP Minimum Security Criteria + AEO for Option 1 | 12 Minimum Security Criteria (GAO-sourced) |
| Compliance Options | 5 options (SCS audit, SCAN/WRAP, Small Supplier, CTPAT, AEO) | Single path (application + SCSS validation) |
| Assessment Method | Third-party audit or program certification | CBP Supply Chain Security Specialist (SCSS) on-site validation |
| Scoring/Results | Color rating: Green/Yellow/Orange/Red | Tier 1 Certified / Tier 2 Validated / Tier 3 Partner in Excellence |
| Validity | Varies by color rating + country risk (3yr-6mo) | Ongoing, revalidation every 3-4 years |
| Country Risk | 3 categories by BSI (Cat1/2/3) | Not a formal category system |
| Consequences | Red = facility inactivated; 3 strikes in 2yr = termination | Suspension or revocation of C-TPAT status |
| Walmart SCS Recognition | Primary program | Option 4: replaces factory audit (confirmed from SCS extract) |
What Is SCS?
SCS (Supply Chain Security) is Walmart's factory audit program that monitors whether suppliers have adequate security controls in place to protect shipments against tampering and prevent un-manifested cargo when Walmart is the importer of record. Facilities receive a color rating (Green, Yellow, Orange, or Red) rather than a traditional certificate. The program applies to Direct Import items and offers five compliance options, including Walmart SCS audits, SCAN/WRAP programs, the Small Supplier Program via Intertek, CTPAT certification, and AEO mutual recognition.
SCS uses three Country Risk Categories determined by the British Standards Institute (BSI). Category 1 countries have no regular audit schedule, Category 2 requires regular audits, and Category 3 requires more frequent follow-up. New facilities must prequalify — Category 3 facilities need Yellow or Green to begin production.
Key SCS facts (from Walmart SCS Audit Guidance 2024): Three consecutive Orange ratings may result in Red. Red-rated facilities are inactivated. Three Strikes in a two-year period may result in supplier suspension or termination. Contact: rssfaam@walmart.com (Americas), rssfacn@walmart.com (China/Far East), rssfain@walmart.com (other regions).
What Is C-TPAT?
C-TPAT (Customs-Trade Partnership Against Terrorism) is a voluntary supply chain security program led by U.S. Customs and Border Protection (CBP), established in November 2001. It has over 11,000 participants covering 52% of U.S. import value (GAO-26-107893, August 2025). The program is free to join (CBP official FAQ: "no costs associated with joining").
C-TPAT uses 12 Minimum Security Criteria (MSC) covering areas such as Security Vision, Risk Assessment, Business Partners, Cybersecurity, Conveyance Security, Seal Security, Physical Security, Access Controls, Personnel Security, and Training. Certified companies are assigned a CBP Supply Chain Security Specialist (SCSS) and undergo on-site validation within one year of certification.
Key C-TPAT facts: Three-tier system (Certified, Validated, Partner in Excellence). Mutual Recognition Arrangements with 15+ countries. C-TPAT Trade Compliance program (2025) offers UFLPA priority review. Forced labor compliance integrated since 2022. Revalidation every 3-4 years.
How They Relate: C-TPAT as SCS Option 4
The most important relationship between these two programs is that C-TPAT certification satisfies Walmart's SCS audit requirement as Option 4. According to the Walmart SCS Audit Guidance document, a supplier or facility that is C-TPAT Tier I, II, or III certified can waive the factory audit requirement by:
- Submitting a request in the CTPAT Portal (SVI section) to monitor Walmart
- Providing Walmart with an image of the C-TPAT Tier I, II, or III certification
The waiver is valid for one year or until the C-TPAT certification is lost. This means that suppliers who invest in C-TPAT certification gain dual benefits: U.S. customs clearance advantages and Walmart SCS compliance.
Which One Should You Choose?
| Scenario | Recommendation |
|---|---|
| Supplier only needs to comply with Walmart | Choose SCS Option 1, 2, or 3 (Walmart audit, SCAN/WRAP, or Small Supplier) |
| Supplier exports to U.S. and wants customs benefits | Get C-TPAT certified (free, 11,000+ participants, covers Walmart SCS) |
| Supplier already has C-TPAT certification | Submit C-TPAT as SCS Option 4 — no additional factory audit needed |
| Small supplier with limited resources | Consider SCS Small Supplier Program (Option 3, if eligible under $3M/$350K) |
FAQ: SCS vs C-TPAT Frequently Asked Questions
The following are frequently asked questions about SCS and C-TPAT comparison.
Q: Is C-TPAT the same as Walmart SCS?
A: No. C-TPAT is a U.S. government program by CBP, while Walmart SCS is a retailer-specific compliance program. However, C-TPAT certification qualifies as Option 4 under Walmart's SCS program, allowing certified suppliers to waive the separate factory audit.
Q: Can C-TPAT replace a Walmart SCS audit?
A: Yes. Walmart accepts C-TPAT Tier I, II, or III certification as Option 4 for SCS compliance. Suppliers must submit a request via the CTPAT Portal (SVI section) and provide their certification image. The waiver is valid for one year.
Q: Which is cheaper: SCS or C-TPAT?
A: C-TPAT is free to join (CBP official: no costs associated with joining). SCS audit costs vary depending on the chosen option — suppliers pay audit fees to the audit firm or program. For the Small Supplier Program, Intertek charges a fee for the program. Neither program publishes fixed fee schedules.
Q: Do I need both SCS and C-TPAT?
A: Not necessarily. If you are a Walmart direct import supplier and obtain C-TPAT certification, you satisfy SCS requirements through Option 4. However, if you only comply with Walmart SCS, you do not automatically receive C-TPAT benefits — you must apply separately through the CBP C-TPAT portal.
Q: What are the security standards for each program?
A: SCS audits (Option 1) are based on CBP Minimum Security Criteria and AEO standards. C-TPAT uses 12 Minimum Security Criteria (GAO-sourced) covering Security Vision, Risk Assessment, Business Partners, Cybersecurity, Conveyance, Seals, Procedural, Agricultural, Physical, Access Controls, Personnel, and Training.
Q: How long does each certification take?
A: C-TPAT certification typically takes 3-6 months from application to certification, with SCSS validation within one year. SCS audit timelines depend on the chosen option and audit firm availability, but generally the audit itself takes 1-2 days on-site with preparation time depending on facility readiness.
Conclusion
SCS and C-TPAT serve different masters — Walmart's retail compliance requirements versus U.S. government customs security. Yet they are deeply connected: C-TPAT certification is explicitly recognized as a compliance path for Walmart SCS (Option 4), creating a strategic opportunity for suppliers serving both Walmart and the broader U.S. import market.
For most suppliers, the optimal strategy is C-TPAT first, SCS second: obtain C-TPAT certification for its customs benefits and zero joining cost, then use it to satisfy Walmart SCS compliance as Option 4. This approach maximizes security coverage while minimizing duplication of effort.
Need help choosing between SCS and C-TPAT? Contact our supply chain security experts for a free consultation on the best compliance path for your facility.
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