Tariff classification: Royan Grade Wood Pulp classified under Sub-Heading 48.18 not 56.01 following judicial interpretation.
The operative determination classifies the expression "Royan Grade Wood Pulp" under Sub-Heading 48.18 rather than Heading 56.01, based on characterisation of the material's essential nature and application of tariff heading language and classification principles to distinguish raw wood pulp from processed textile-like articles.

Tariff classification of medicinal preparations: prior departmental treatment and commercial use determine sub-heading placement.
The Supreme Court held that Johnson's Prickly Heat Powder and Phipps Processed Talc are patent or proprietary medicines classifiable under Sub-Heading 30.03, relying on BPL Pharmaceuticals principles and on prior departmental treatment, commercial usage, statutory treatment and common parlance to determine that sustained classification and actual use as medicinal preparations govern tariff classification despite a new tariff schedule.

Product classification for therapeutic or prophylactic use dictates treating composite preparations as medicaments for tariff purposes.
Products described as product uses for Therapeutic or Prophylactics are to be treated as medicaments for tariff classification; mixtures of two or more constituents combined for therapeutic or prophylactic purposes qualify as a medicament and should be classified accordingly, with the intended therapeutic or prophylactic use and composite nature determining the applicable tariff heading.

Tariff classification: Dimethicone treated as chemical goods heading, not classified under pharmaceutical-medical heading for levy purposes.
Dimethicone is classifiable under Sub Heading 3910 and not under 3003.20 of the Tariff Act, treating it as a product of the chemical/plastic goods heading rather than as a medicament for tariff purposes.

Tariff classification: Sloans Balm and Sloans Rub placed under medicated topical preparations, not the alternate heading.
Classification dispute over topical proprietary preparations marketed as Sloans Balm and Sloans Rub; the operative determination places these products within Sub Heading 3003.30 rather than Sub Heading 3003.10 of the Tariff Act, based on the products' character and the tariff terminology.

Classification of Himtaj Oil as Ayurvedic medicament confirmed, excluding perfumed hair oil category under tariff.
The document determines that the classification question for Himtaj Oil is whether it is an Ayurvedic Medicament or a perfumed hair oil; it records the authoritative precedent that the product properly falls within the Ayurvedic Medicaments sub heading rather than the perfumed hair oil tariff heading, applying character based classification principles to distinguish medicament articles from cosmetic preparations.

Tariff classification: lip salve treated as a cosmetic preparation, not a medicated product, affecting applicable tariff placement.
The expression Lip Salve is classified under Sub Heading 33.04 read with Note No.5 of Chapter 33, and not under Sub Heading 33.03, thereby treating lip salves as cosmetic preparations rather than medicated preparations for tariff and central excise classification purposes.

Fragrant mat classification placed under specific fragrance preparations heading rather than the generic perfume preparations heading.
The operative classification ruling states that the term "Fragrant Mat" is classifiable under Sub-Heading 3307.41 rather than 3307.49, treating such items as specific fragrance preparations for tariff and excise purposes.

Tariff classification of conveyor belts clarified under harmonised system guidance, confirming current classification under polymeric goods heading.
The conveyor belt item was held to fall within Tariff Heading 3922.90 for an earlier period and within Tariff Heading 3926.90 for a later period, and under the latest tariff remains classifiable under the tariff item corresponding to 3926.90; the Harmonised System Explanatory Note to Tariff Heading 39.26 is the guiding interpretive aid because the Tariff Schedule is based on the Harmonised Coding System.

Classification of block board as similar laminated wood affirms inclusion under laminated-wood headings, though later tariff notes may reassign it.
The phrase "similar laminated wood" in the laminated wood heading was construed to include block boards of all kinds, and later amendments to chapter notes only clarified that implicit scope; however, current chapter and supplementary notes may assign block boards to a different tariff entry, making present classification dependent on the operative tariff wording.

Tariff classification of pesticides: specific Chapter 38 headings control classification of insecticidal and fungicidal preparations.
Classification of technical grade pesticides depends on specific tariff headings: general provisions in Chapters 28 and 29 give way to the specific provisions of Chapter 38 for insecticides and pesticides, so TGP and formulations with insecticidal or fungicidal properties are classifiable under the specific headings in Chapter 38 rather than under earlier residuary headings, with preparations of insecticidal or fungicidal character falling under Heading 38.08.

Prospective effect of administrative circulars: "henceforth" signals non-retrospective application, barring past-duty demands.
When the Board uses language such as "henceforth" a circular is to be treated as having prospective effect; consequently, if the Board did not intend retrospective application, the circular cannot support demands for duties predating its issuance.

Binding precedent: administrative circulars cannot override the Court's authoritative interpretation; courts must apply that law.
Administrative circulars cannot prevail over the law laid down by the highest court; courts and tribunals must apply the Court's authoritative interpretation. A protective rule preserved benefits already granted under exemption notifications from reopening, but did not permit adjudicative bodies to follow circulars in preference to the Court's decision where entitlement was contested and proceedings were pending.