Validate HTS format: 6109.10.0012

{
  "code": "HTS Format Validation: 6109.10.0012\n\nResult: {\"valid\": true, \"chapter\": \"61\"}\n\nAnalysis:\n- Format: 6109.10.0012 → 4-digit heading (6109) + 2-digit subheading (10) + 4-digit statistical suffix (0012)\n- Pattern: XXXX.XX.XXXX — valid US HTS 10-digit format\n- Chapter 61: Articles of apparel and clothing accessories, knitted or crocheted\n- Heading 6109: T-shirts, singlets, tank tops and similar garments, knitted or crocheted\n- Subheading 6109.10: Of cotton\n- Statistical suffix 0012: specific product classification\n\nValid per USITC HTS format rules:\n- 10 digits total (excluding dots) ✓\n- First 6 digits (6109.10) match HS international standard ✓\n- Last 4 digits (0012) are US statistical suffix ✓",
  "content": "HTS Format Validation: 6109.10.0012\n\nResult: {\"valid\": true, \"chapter\": \"61\"}\n\nAnalysis:\n- Format: 6109.10.0012 → 4-digit heading (6109) + 2-digit subheading (10) + 4-digit statistical suffix (0012)\n- Pattern: XXXX.XX.XXXX — valid US HTS 10-digit format\n- Chapter 61: Articles of apparel and clothing accessories, knitted or crocheted\n- Heading 6109: T-shirts, singlets, tank tops and similar garments, knitted or crocheted\n- Subheading 6109.10: Of cotton\n- Statistical suffix 0012: specific product classification\n\nValid per USITC HTS format rules:\n- 10 digits total (excluding dots) ✓\n- First 6 digits (6109.10) match HS international standard ✓\n- Last 4 digits (0012) are US statistical suffix ✓"
}