TIA – Telecommunications Industry Association https://tiaonline.org/
· IEC- International Engineering Consortium  https://webstore.iec.ch/
· IEEE – Institute of Electrical and Electronics Engineers

http://grouper.ieee.org/groups/802/3/index.html
· ITU – International Telecommunication Union https://www.itu.int/rec/T-REC-G/e
· MEF – Metro Ethernet Forum http://www.metroethernetforum.org/