Current stage: 50.00 Effective date: Mar 23, 2026
Next stage: CFDIS Next stage date: Jun 15, 2026
Originator: IEC
Owner: TC 23/SC 23H
Type: International Standard
ICS: 29.120.30 43.120
PROJECT IEC 63407 ED1 50.00 Final text received or FDIS registered for formal approval Mar 23, 2026