About & disclaimer
GBDiff is written by the GBDiff team, led by an EV embedded software engineer based in China. Our work is limited to China's mandatory national standards (GB), whose texts SAMR/SAC publishes free online.
How we work
- We write original English commentary. We do not translate, reproduce or redistribute standard texts.
- Quotations are limited to short phrases, with clause numbers and links to the official source.
- For recommended standards (GB/T) we publish original commentary only.
- Every factual point links to an official source (openstd, SAMR, MIIT, gov.cn) or is clearly marked as our analysis.
Disclaimer
Independent commentary, not a translation of the standard and not legal, certification or compliance advice. The official text published by SAMR/SAC prevails. Nothing on this site creates a consulting or advisory relationship. Standards and implementation notices change, so always check the current official text and the latest notices from the authorities. We are not affiliated with SAMR, SAC, MIIT or any certification body.