Chapter 2621 — Customs Tariff Headings
Products classified under Tariff item 26.21
Combined Municipal Incinerator Ash (Bottom and Fly)
A combined mixture of bottom ash and fly ash collected from the combustion of municipal solid waste in incinerators. This product is classified under tariff item 2621.10.00 because it is explicitly ash and residues from the incineration of municipal waste, as defined in the Customs Tariff of Canada.
2621.10.00Municipal Sewage Sludge Incineration Ash
Ash residue produced from the incineration of municipal sewage sludge, containing phosphorus and various metals. This product falls under tariff item 2621.10.00 because it is ash from the incineration of municipal waste, specifically sewage sludge collected from municipal treatment facilities.
2621.10.00Municipal Solid Waste Incinerator Bottom Ash
Bottom ash collected from the combustion chamber of municipal solid waste incinerators, comprising non-combustible materials like glass, metals, and ceramics. This product is classified under tariff item 2621.10.00 as it is explicitly ash and residues from the incineration of municipal waste.
2621.10.00Municipal Waste Fly Ash
Fine particulate fly ash captured from flue gases in municipal solid waste incineration plants, often containing dioxins and heavy metals. This product falls under tariff item 2621.10.00 because it is ash from the incineration of municipal waste, regardless of its hazardous characteristics.
2621.10.00Municipal Waste-to-Energy Plant Ash
Ash byproducts from waste-to-energy incinerators that process municipal solid waste for electricity generation. This product is classified under tariff item 2621.10.00 as it is ash and residues from the incineration of municipal waste, even when the incineration also generates energy.
2621.10.00Urban Refuse Incinerator Residue
Coarse and fine residues from incinerating household and commercial urban waste in municipal facilities. This product falls under tariff item 2621.10.00 because it is explicitly ash and residues from the incineration of municipal waste, as defined in the Customs Tariff of Canada.
2621.90.00Bottom Ash from Urban Incinerators
Coarse bottom ash residue collected at the base of municipal waste incineration furnaces. This product falls under tariff item 2621.90.00 as it is ash from the incineration of municipal waste, not slag or ash used for metal extraction covered by heading 26.20.
2621.90.00Fly Ash from Household Waste Burning
Fine particulate fly ash captured from flue gases in municipal household waste incinerators. This product is classified under tariff item 2621.90.00 as ash from municipal waste incineration, and is not intended for metal recovery, which would fall under heading 26.20.
2621.90.00Kelp Seaweed Ash
Ash produced from burning dried kelp seaweed, rich in potash and minerals, used in fertilizers. This product falls under tariff item 2621.90.00 as seaweed ash (kelp), explicitly included in the heading's scope.
2621.90.00Landfill Leachate Treatment Residue Ash
Residues from incinerating municipal waste after leachate treatment in landfills, containing inert bottom ash. This product is classified under tariff item 2621.90.00 as ash from municipal waste incineration, not industrial waste residues.
2621.90.00Mixed Municipal Solid Waste Incinerator Residue
Combined bottom and fly ash from incinerating mixed municipal solid waste including plastics and organics. This product falls under tariff item 2621.90.00 as 'other' ash from municipal incineration, not for metal extraction.
2621.90.00Municipal Waste Incineration Ash
Ash and residues generated from the incineration of municipal solid waste, such as household garbage and non-hazardous urban refuse. This product is explicitly covered by tariff item 2621.90.00 as ash from municipal waste incineration.
2621.90.00Processed Kelp Ash Fertilizer Base
Lightly processed ash from kelp incineration, used as a base for organic fertilizers high in trace minerals. This product remains under tariff item 2621.90.00 as unrefined seaweed ash, not chemically processed.
2621.90.00Urban Biomass Waste Ash
Ash from incinerating urban biomass waste like yard trimmings and food scraps in municipal facilities. This product is classified under tariff item 2621.90.00 as other municipal waste residues, not industrial ash.