Subheading 9002 19 of the Combined Nomenclature covers all mounted optical objectives other than those falling under subheading 9002 11, specifically objectives designed for optical and electron microscopes, astronomical telescopes, spotting scopes, binoculars, medical and surgical instruments, geodetic and surveying instruments, and specialised industrial and scientific imaging systems. An objective within the meaning of this subheading is a complete lens system mounted in a mechanical housing, adapted for use with a specific type of instrument. For microscopes, the subheading covers both interchangeable objectives — achromatic, plan-achromatic, fluorite, apochromatic and oil-immersion designs — and objectives for stereo and confocal microscopes. Objectives for medical instruments such as laparoscopes, endoscopes and ophthalmoscopes fall under this subheading, even though the complete instrument is classified under heading 9018. The decisive classification criterion distinguishing this subheading from 9002 11 is the actual intended use of the objective. Classification follows the General Rules for the Interpretation of the CN (GRI Rules 1 and 6) and the notes to Section XVIII and Chapter 90 of the Combined Nomenclature.

Importing mounted objectives under subheading 9002 19 into the European Union requires compliance with the Union Customs Code (Regulation (EU) No 952/2013). The importer must hold a valid EORI number and submit a complete customs declaration with the correct CN code. Objectives intended for use in medical devices — such as endoscopes or surgical microscopes — may fall within the scope of EU Medical Device Regulation 2017/745 (MDR). In such cases, a conformity assessment and registration in the Eudamed database are required. Objectives for research and industrial microscopes may require a declaration of conformity with electromagnetic compatibility standards if they contain electronic components. Objectives for military or dual-use applications — such as laser filter objectives for targeting systems — may require export or import authorisation under EU Regulation 2021/821 on dual-use items. Required documents for customs clearance include: a commercial invoice, technical specification, transport document, and if applicable, a certificate or declaration of origin for preferential tariff rates. Current MFN rates should be verified in TARIC.

Like other precision optical components, mounted objectives under subheading 9002 19 may benefit from reduced or zero duty rates under the WTO Information Technology Agreement (ITA) or EU autonomous tariff suspensions, which are regularly updated by Council regulations. MFN duty rates for specific 8-digit CN subheadings must be verified directly in the European Commission's TARIC database, as rates may differ depending on the detailed product description. Preferential duty rates may be available for imports from Japan (EU-Japan EPA), South Korea, Canada (CETA), Switzerland, the United Kingdom (TCA), and countries covered by the GSP or GSP+ schemes. To claim preferences, a valid proof of origin must be presented: a EUR.1 movement certificate, invoice declaration, or REX statement of origin. The importer should verify in TARIC whether anti-dumping duties or other protective measures apply to the specific goods and country of origin. VAT at the rate applicable in the country of import is levied in addition to any customs duties.

Subheading CN 9002 19 covers mounted objectives for microscopes, telescopes, and other optical instruments not covered by 9002 11. This includes immersion objectives for fluorescence microscopes, astronomical telescope objectives, and collimating objectives. These objectives are often precision components of very high optical quality and may be subject to dual-use export controls (Regulation 2021/821), particularly infrared imaging objectives with specific technical parameters.