Clean Hydrogen Certification System
Hydrogen Law and Guide
1. Act on the Promotion of the Hydrogen Economy and Hydrogen Safety Management.
2. Notification on the Operation of the Clean Hydrogen Certification System
(Regulations on the Operation of Clean Hydrogen Certification Operating Agencies)
Note 1) Greenhouse gas emissions per facility, which is the minimum reporting unit, are calculated to the fourth decimal place, and when summing up the total emissions, they are rounded to the third decimal place.
Note 2) When issuing clean hydrogen certificates and assigning grades, greenhouse gas emissions are rounded from the third decimal place to the second decimal place.
Grades of Clean Hydrogen and Recognition Criteria by Grade
Related to Article 8 of the Notification
|
Grade |
Recognition Criteria |
|---|---|
|
1 |
0.00 ~ 0.10 (kgCO₂eq/kgH₂) |
|
2 |
0.11 ~ 1.00 (kgCO₂eq/kgH₂) |
|
3 |
1.01 ~ 2.00 (kgCO₂eq/kgH₂) |
|
4 |
2.01 ~ 4.00 (kgCO₂eq/kgH₂) |


