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We provide professional optical product testing services (laser product safety testing and performance parameter testing, photobiological safety testing for non‑laser products), as well as energy efficiency testing services (EU ErP energy efficiency testing, US DOE energy efficiency testing, California CEC energy efficiency testing), among others.
If you have requirements for laser products (laser product safety testing and laser performance parameter testing) and energy efficiency testing (EU ErP energy efficiency testing, US DOE energy efficiency, California CEC energy efficiency, UK energy efficiency testing), please feel free to email us at: admin@ctnt-cert.com
The global smart bathroom market is projected to expand at a compound annual growth rate exceeding 11% in 2026. North America stands out as not only the largest‑demand market but also one of the fastest‑growing regions. Smart toilets integrated with sterilization, cleansing, touch‑less flushing and other functions are witnessing explosive growth across North America.
Nevertheless, the US imposes stringent market‑access barriers. For Chinese manufacturers, DOE certification and California CEC certification are two mandatory compliance procedures for lawful customs clearance and e‑commerce listing. Failure to obtain these certifications may result in customs detention, delisting from platforms such as Amazon, and even financial penalties.

Single‑flush toilets: maximum 1.28 gallons per flush
Dual‑flush toilets: maximum 1.28 gallons for full flush; maximum 0.9 gallons for partial flush (2026 new standard); average water consumption shall meet the 1.28‑gallon requirement
Standby power consumption: Under CEC Title 20, standby power for smart toilets in non‑operating mode shall generally be kept below 1 W; stricter requirements may go as low as 0.5 W. Excessive standby power remains a top cause of certification failures for many manufacturers.
Operating‑mode energy consumption: Strict calculations apply to total power draw from warm‑water cleansing, seat heating, warm‑air drying and other functions over typical usage cycles.
DOE: 10 CFR 430 and 10 CFR 429
CEC: Title 20 regulations, with registration in the MAEDbS database.
DOE Registration: A US‑based responsible party (importer or US authorized agent) logs into the DOE CCMS system to complete model filing.
CEC Registration: Test reports are submitted to the CEC MAEDbS system; review normally takes 5‑10 working days.
Post‑market Surveillance
Compliance is not a one‑time task. DOE and FTC conduct ongoing market surveillance sampling.
Product technical specifications
Electrical circuit schematics
Bill of Materials (BOM) for critical components
English‑language user manual
Product nameplate / marking information
Two complete product samples
Testing Service Fees: Cover laboratory resources, engineering labor and consumables. Smart‑toilet testing combining water and electrical performance is generally more costly than standard small‑home‑appliance testing.
Registration Service Fees: Third‑party administrative fees for CEC and DOE registration submissions.
Agent Service Fees: US‑authorized‑agent representation, mandatory for DOE registration since non‑US entities cannot file directly.
Platform Mandate: Effective February 18, 2025, Amazon US requires valid DOE model registration as a pre‑condition for bathroom‑category product listings.
US Agent Requirement: DOE registration must be performed by a US‑based importer or authorized agent; filings from non‑US entities will be rejected by the system.
California‑Specific Rules: Products sold in California additionally require CEC registration. While test data may be reused, registration accounts and certification numbers remain independent and cannot be interchanged.
Standby‑Power Risk Point: Poor power‑board design is the primary root cause of excessive standby power. Pre‑compliance evaluation by a qualified lab before tooling helps avoid costly and time‑consuming post‑development rework.
Accredited laboratory: CNAS‑accredited facility qualified for China energy‑label program testing.
Full‑scope testing: Complete flushing‑performance physical testing and standby‑power electrical testing.
Turn‑key project management: Pre‑assessment, compliance modification support, testing, and US‑agent‑assisted official registration.
Multi‑market energy‑efficiency solutions: Support for EU ErP, UK energy labeling and other major global regulatory regimes.
Remediation support: Targeted technical recommendations for resolving standby‑power non‑compliance.
California Energy Efficiency Certification – Specialised SolutionFocused on meet
Complete U.S. Energy Efficiency Compliance SolutionFully addressing U.S. Departm
Complete EU Energy Efficiency Compliance SolutionOne‑stop solution covering all