Choose another country to see content specific to your location

//Select Country

WELS Certification

Adding value with our service portfolio

The Water Efficiency Labelling Scheme (WELS) Certification is offered by TÜV SÜD PSB to suppliers seeking certification of their water fittings and appliances for compliance to the Water Efficiency requirements stipulated in the Public Utilities (Water Supply) Regulations. The criteria for certification is in accordance to the PUB Water Efficiency Labelling Scheme (WELS) Guidebook and SAC CT 19 : SAC Criteria for Certification Bodies (Water Efficiency Labelling Scheme)

TÜV SÜD PSB is an ISO 17065 accredited Certification Body and accredited ISO17025 testing laboratory for Water Efficiency Labeling Scheme (WELS), and we can ensure customers comply with PUB’s specified guidelines and regulations regarding minimum performance and water efficiency requirements. For more details on Water Efficiency Labeling Scheme (WELS), you may refer to PUB website.

Mandatory WELS

  • Shower Taps and Mixers
  • Basin Taps and Mixers
  • Sink/Bib Taps and Mixers
  • Low Capacity Flushing Cisterns
  • Urinal Flush Valves & Waterless Urinals
  • Clothes Washing Machines

Currently, there are 4 categories for the ratings. The rating given to a product is determined by its category, and its flow rate/flush capacity. The more ticks a product has, the more water-efficient it is. With this scheme, consumers can make informed choices when making purchases.

Know more about the Types of Label here

  • For application related enquiry on taps and mixers; flushing cisterns and urinals, please contact Mr Henry SOH at HP:90718608
  • For application related enquiry on clothes washing machines, please contact Mr Zachary LEE at HP:81018178


Water Services

Water Services

Ensure efficiency and competitiveness in the water sector

Learn more



Foster sustainable sanitation solutions

Learn more

Consumer Products and Retail Essentials

Consumer Products & Retail E-ssentials

Consumer trust is key when you manufacture or retail products that are part of everyone’s daily life

Learn more

Next Steps

Select Your Location





Middle East and Africa