DO Control Systems for Wastewater Treatment from China
Dissolved oxygen controllers that automatically adjust aeration blowers in wastewater treatment plants to maintain optimal DO levels via probe feedback. These instruments continuously measure and regulate oxygen levels, qualifying as automatic process regulators under tariff item 9032.89.00.
Duty Rate — China → Canada
PGA flags (2)Show detailsHide detailsHCConsumer Products SafetyMay be requiredNRCanOffice of Energy EfficiencyMay be required
- HC
Consumer Products Safety · May be required · on some HTS numbers under this code
May require HC Consumer Products Safety depending on intended use (HC21) and Canadian product category (HC29, HC30, HC31, HC32, HC33, HC34, HC35, HC36, HC37); or intended use (HC22, HC23, HC24, HC26, HC27) and Canadian product category (HC37), and on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Equal To 9032890021; Equal To 9032890021. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
- NRCan
Office of Energy Efficiency · May be required · on some HTS numbers under this code
May require NRCan Office of Energy Efficiency depending on intended use (NR01, NR02, NR03), and on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Equal To 9032890021; Equal To 9032890092. Logic: MATCH IF (Valid HS Code) AND (Valid Intended Use Code).
CBSA Single Window matching criteria, unknown
Import Tips
• Provide CBSA with documentation showing the automatic feedback control of aeration equipment
• Verify if the control system requires any environmental compliance certifications in Canada
• Include technical specifications of the dissolved oxygen probes to support classification