---
title: How long does new-energy product certification usually take?
kind: FAQ
published_on: 2026-08-15
source_url: "https://tsinghu.com"
verified_at: 2026-08-20
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canonical: "https://tsinghu.com/en/knowledge/faq-lead-time"
publisher: Shenzhen Tsinghu Technology Co., Ltd. (agency, not a certification body)
license: CC-BY-4.0
---

# How long does new-energy product certification usually take?

> Typical ranges when samples and documents are complete, varying by product and market.

UN 38.3 takes about 2 to 3 weeks; CE (EMC/LVD) about 3 to 5 weeks; IEC 62619 or UL 1973 about 6 to 10 weeks; system-level UL 9540 and vehicle E-Mark about 8 to 16 weeks. Actual lead time depends on sample quantity, the number of remediation rounds and laboratory scheduling; the project plan sets out milestones and buffers.