For faculty, almost never. There were no increases at all for 12 years, and there have been nothing but small COLAs for 16.
They occur annually.
Answered - Adjunct Instructor ESL (Former Employee) - Las Vegas, NV
I don't know when but I was told at interview that if it all worked she would raise my hourly wage when she was allowed and she did at the beginning of 2017.
Answered - its called a LOA (Current Employee) - Las Vegas, NV 89102