Education7 min readPublished March 3, 2026

Section 301 vs IEEPA: What's Still Active After Supreme Court Ruling?

Clear explanation of which tariff mechanisms survived the February 2026 Supreme Court ruling and which were eliminated.

⚖️ Quick Status Check

IEEPA Tariffs

❌ ELIMINATED (Feb 20, 2026)

Section 301 Tariffs

✅ ACTIVE (Unchanged)

Section 122 Surcharge

🆕 NEW (Feb 24, 2026)

Understanding the Confusion

For years, importers dealing with Chinese goods faced both IEEPA and Section 301 tariffs simultaneously. The distinction between these mechanisms was often unclear, leading to confusion about which applied when and why. The Supreme Court's February 2026 ruling clarified this by eliminating one entirely.

Here's the complete breakdown of what changed and what didn't:

IEEPA Tariffs: What Was Eliminated

❌ IEEPA (International Emergency Economic Powers Act)

Legal Basis: IEEPA of 1977 - emergency economic powers

Authority Claimed: National emergency declarations

Supreme Court Ruling: "IEEPA does not authorize the President to impose tariffs"

What This Eliminated:

  • 145% tariff rate on China, Hong Kong, Macau
  • 35% tariff rate on Russia, Belarus
  • 20% baseline rate on other designated countries
  • Country-specific emergency designations
  • All IEEPA surcharge mechanisms

Section 301 Tariffs: What Survived

✅ Section 301 (Trade Act of 1974)

Legal Basis: Trade Act of 1974, Section 301 - unfair trade practices

Authority: USTR investigation and determination of unfair practices

Supreme Court Impact: None - operates under separate legal authority

What Remains Active:

  • List 1: 25% on $34B of Chinese machinery/technology
  • List 2: 25% on $16B of Chinese industrial goods
  • List 3: 25% on $200B of Chinese products
  • List 4A: 7.5% on $120B of Chinese consumer goods
  • Product-specific targeting based on unfair trade practices

Section 122: The New Replacement

🆕 Section 122 (Trade Act of 1974)

Legal Basis: Trade Act of 1974, Section 122 - balance of payments

Authority: Presidential authority for temporary surcharges

Implementation: February 24, 2026 (4 days after IEEPA struck down)

New Framework:

  • 10% uniform rate on ALL imports (no country discrimination)
  • Temporary measure (expires July 23, 2026)
  • Does NOT stack with Section 232 products
  • Applies even to FTA partners (unlike IEEPA exemptions)
  • Replaces country-specific approach with global surcharge

Side-by-Side Comparison

AspectIEEPA (Eliminated)Section 301 (Active)Section 122 (New)
Legal AuthorityIEEPA emergency powersTrade Act unfair practicesTrade Act balance of payments
Target ScopeCountry-based (broad)Product-specific (China only)Global (all countries)
Rate Structure20%-145% (country-varying)7.5%-25% (product lists)10% (uniform)
DurationIndefinite (emergency basis)Indefinite (policy-based)150 days (expires July 2026)
China CoverageALL products (145%)$370B specific productsALL products (10%)

Why Section 301 Survived

Section 301 tariffs survived the Supreme Court challenge because they operate under completely different legal authority:

🏛️ Legal Foundation

  • Separate statute: Trade Act of 1974, not IEEPA
  • Different purpose: Addressing unfair trade practices
  • USTR authority: Based on formal investigation
  • Product-specific: Targeted rather than broad-based

📋 Process Differences

  • Investigation required: USTR 301 investigation process
  • Public comment: Formal notice and comment procedures
  • WTO compliant: Retaliatory tariffs for unfair practices
  • Product lists: Specific HTS codes identified

Current Chinese Import Calculation

For Chinese imports, you now need to calculate rates differently depending on whether the product is covered by Section 301:

🧮 New Rate Calculation for China

Products NOT on Section 301 Lists:

Base Rate + Section 122 (10%)

Example: Electronics not on lists = 0% + 10% = 10% total

Products ON Section 301 Lists:

Base Rate + Section 122 (10%) + Section 301 (7.5%-25%)

Example: Machinery on List 1 = 0% + 10% + 25% = 35% total

Section 232 Products from China:

Base Rate + Section 232 (varies) + Section 301 (if applicable)

Example: Steel = 0% + 50% + 0% = 50% total (Section 122 doesn't apply)

Practical Impact Examples

✅ Major Reductions

  • Chinese medical supplies: 145% → 10%
  • Chinese electronics (non-301): 145% → 10%
  • Russian machinery: 35% → 10%
  • Chinese textiles (List 4A): 145% + 7.5% → 10% + 7.5% = 17.5%

Massive cost reductions for products that were primarily hit by IEEPA

⚠️ Mixed Impact

  • Chinese machinery (List 1): 145% + 25% → 10% + 25% = 35%
  • German products: 0% → 10%
  • Mexican products: 0% (USMCA) → 10%
  • Chinese steel: 145% + 25% → 50% (Section 232 only)

Reductions for China but new costs for traditional FTA partners

Business Planning Implications

Understanding these distinctions is crucial for business planning:

🎯 Supply Chain Strategy

  • Chinese sourcing: Major cost advantages for non-Section 301 products
  • FTA partner sourcing: Lost advantages due to Section 122
  • New country exploration: All face same 10% Section 122 burden
  • Section 232 avoidance: Consider alternative materials/products

📊 Financial Planning

  • IEEPA refunds: Significant cash recovery opportunity
  • Price adjustments: Lower costs on some Chinese goods
  • New cost structures: 10% baseline for previously duty-free imports
  • Temporary nature: Section 122 expires July 2026 (plan for transition)

💡 Key Takeaway

The elimination of IEEPA fundamentally changed the tariff landscape. Section 301 remains the primary tool for targeting Chinese imports, while Section 122 creates a new global baseline. Understanding these distinctions is essential for compliance and strategic planning.

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