NEC ECC: With respect to NEC contracts what does SCN's refer to

NEC3 and NEC4 Contracts
1

Please explain what an SCN is?

2

No idea. NEC is not big on TLS’s (three letter acronyms) and I cant think what that might stand for, but I can assure you that is not a common abbreviation.

3

?Subcontractor Notification? possibly. But clarify with the person who issued it.