Definition
A NOTAM contraction used to indicate that something stated does not apply to a specified time, location, condition, or item. It signals an exclusion within a NOTAM message.
Plain English
Short for 'except.' It means a particular thing is being left out from what was just said.
Context Anchor
Pilots most often see EXC in NOTAMs and other shortened airport or flight information where space is limited.
Derivation
From the Latin 'exceptus,' meaning 'taken out.' That fits the NOTAM use exactly: something is being taken out of what otherwise applies.
Why Pilots Care
Correctly reading EXC prevents misinterpreting operational restrictions such as runway closures or fuel availability.
Intuition Check
EXC does not mean “excellent” or “exceed” here. In NOTAM-style aviation text, EXC means “except” — something is excluded from the statement.
Example Sentence 1
The NOTAM read 'RWY 09/27 CLSD DLY 0600-1400 EXC SAT SUN,' meaning the runway is closed every day during those hours except Saturday and Sunday.
Example Sentence 2
Fuel available EXC Jet A.