| 8421.39.20 | 00 | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Filtering or purifying machinery and apparatus for gases: - Other - Catalytic converters for the motor vehicles of Chapter 87 | NMB | Free | CCCT, LDCT |
| 8421.39.90 | | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Filtering or purifying machinery and apparatus for gases: - Other - Other | NMB | Free | CCCT, LDCT |
| 8421.39.90 | 10 | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Filtering or purifying machinery and apparatus for gases: - Other - Other - Dust extractors or smoke filters | NMB | Free | CCCT, LDCT |
| 8421.39.90 | 30 | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Filtering or purifying machinery and apparatus for gases: - Other - Other - Electrostatic filters (precipitators) | NMB | Free | CCCT, LDCT |
| 8421.39.90 | 40 | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Filtering or purifying machinery and apparatus for gases: - Other - Other - Industrial gas cleaning equipment | NMB | Free | CCCT, LDCT |
| 8421.39.90 | 50 | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Filtering or purifying machinery and apparatus for gases: - Other - Other - Gas separation equipment | NMB | Free | CCCT, LDCT |
| 8421.39.90 | 90 | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Filtering or purifying machinery and apparatus for gases: - Other - Other - Other: - Other | NMB | Free | CCCT, LDCT |
| 8421.91 | | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Parts: - Of centrifuges, including centrifugal dryers | | | |
| 8421.91.10 | 00 | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Parts: - Of centrifuges, including centrifugal dryers - Drying chambers for clothes-dryers and other parts of clothes-dryers incorporating drying chambers | - | Free | CCCT, LDCT |
| 8421.91.20 | 00 | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Parts: - Of centrifuges, including centrifugal dryers - Furniture designed to receive clothes-dryers | - | Free | CCCT, LDCT |
| 8421.91.90 | 00 | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Parts: - Of centrifuges, including centrifugal dryers - Other | - | Free | CCCT, LDCT |
| 8421.99.00 | 10 | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Parts: - Other - Of the goods of tariff item No. 8421.29.10: - For machinery and apparatus for filtering or purifying water | - | Free | CCCT, LDCT |
| 8421.99.00 | 20 | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Parts: - Other - Of the goods of tariff item No. 8421.39.10: - For machinery and apparatus for filtering or purifying beverages other than water | - | Free | CCCT, LDCT |
| 8421.99.00 | 30 | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Parts: - Other - For catalytic converters for the motor vehicles of Chapter 87 | - | Free | CCCT, LDCT |
| 8421.99.00 | 90 | Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. - Parts: - Other - Other | - | Free | CCCT, LDCT |
| 9001.90.10 | 00 | Optical fibres and optical fibre bundles; optical fibre cables other than those of heading 85.44; sheets and plates of polarizing material; lenses (including contact lenses), prisms, mirrors and other optical elements, of any material, unmounted, other than such elements of glass not optically worked.
- Other - Diffusion discs, polarizing filters and colour filters, for cameras, and holders for use therewith;Diffraction gratings, proof planes and optical flats;Fresnel lenses or lenticular lenses for use in the manufacture of projection-type colour television receivers;Halftone or similar printing screens;Lenses or shields for use in the manufacture of ski goggles | - | Free | CCCT, LDCT |
| 9002.20 | | Lenses, prisms, mirrors and other optical elements, of any material, mounted, being parts of or fittings for instruments or apparatus, other than such elements of glass not optically worked. - Filters | | | |
| 9002.20.10 | 00 | Lenses, prisms, mirrors and other optical elements, of any material, mounted, being parts of or fittings for instruments or apparatus, other than such elements of glass not optically worked. - Filters - Diffusion discs, polarizing filters and colour filters, for cameras, and holders for use therewith;Filters for photogrammetric or stereoscopic instruments;Polarizing filters for microscopes | - | Free | CCCT, LDCT |
| 9002.20.90 | 00 | Lenses, prisms, mirrors and other optical elements, of any material, mounted, being parts of or fittings for instruments or apparatus, other than such elements of glass not optically worked. - Filters - Other | - | 3.5% | CCCT, LDCT |
| 9020.00.00 | 00 | Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters. | - | Free | CCCT, LDCT |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
