GRI 1 — Terms of the Headings
/ˌdʒiː ɑːr ˈaɪ ˈwʌn/
GRI 1 provides that section, chapter, and subchapter titles are for reference only; for legal purposes, classification is determined according to the terms of the headings and relevant section or chapter notes and, where those do not otherwise require, according to the remaining GRIs.
In Detail
"Terms of the headings" means the actual legal text of the HTSUS headings — the 4-digit descriptions that define the scope of each heading's coverage (e.g., "8481 — Taps, cocks, valves and similar appliances..."). "Any relative section or chapter notes" means all notes applicable to the section and chapter containing the heading under consideration. The notes are not secondary to the headings — under GRI 1, heading text and applicable notes carry the same legal weight and are applied together, not as a sequence of separate steps.
In practice, an applicable note often resolves scope questions that the heading text alone would leave open — a section note that excludes a product from the section is dispositive within its scope, and a chapter note that defines a term controls over a common-language reading of that term in a heading. But GRI 1 does not impose a fixed section-notes-then-chapter-notes-then-heading-text order; it directs a single, combined reading of the heading terms and whatever section or chapter notes actually apply.
GRI 1 is determinative when a single heading, read in light of all applicable notes, unambiguously describes the product. When two headings appear to equally describe the product, or when no heading clearly fits, subsequent GRI rules are invoked. But the rule is clear that GRI 2 and beyond can only be reached after GRI 1 genuinely fails — not simply because classification is uncertain or complex.
Classification Significance
Most classification disputes at audit or protest resolve around GRI 1 analysis: whether the correct notes were consulted, whether a note exclusion was missed, whether the heading text was read too broadly or too narrowly. A product classified under a later GRI rule without a documented reason why GRI 1 failed is vulnerable to CBP challenge. GRI 1 compliance is the foundation of any defensible classification program.
How Kanon Handles This
Kanon evaluates GRI 1 for every product by processing all applicable section and chapter notes through its structured condition-tree corpus before comparing heading text. Every note evaluated, every condition checked, and the reasoning that either resolves or fails to resolve classification at GRI 1 is documented in the Classification Support Package.