Impregnated Bituminized Fiberboard Sheets from Mexico
Fiberboard sheets impregnated with bitumen for roofing underlayment and waterproofing applications. HTS 4811.90.90 applies to this impregnated cellulose fiber product excluded from plain paperboard headings. Provides durable moisture barrier in construction.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Conduct asphalt/bitumen content analysis to quantify impregnation level
• Certify VOC emissions compliance for construction materials
• Avoid confusion with Chapter 68 agglomerated asbestos products