| nameSpaceRoot | http://www.ech.ch/xmlns/ech-0021 |
| Version | 3.0 (Major Version) |
| Issue date | 28.03.2009 |
| Status | activ |
http://www.ech.ch/xmlns/eCH-0021/3/eCH-0021-3-0.xsd
http://www.ech.ch/xmlns/eCH-0021/3/eCH-0021-3-0f.xsd (forgiving)
| http://www.ech.ch/xmlns/eCH-0010/3/eCH-0010-3-1 |
| http://www.ech.ch/xmlns/eCH-0044/1/eCH-0044-1-1 |
| http://www.ech.ch/xmlns/eCH-0011/4/eCH-0011-4-0 |