Creating a training matrix using conditional formating

[SMAR1]

Hello,
I'm in the process to create a training matrix for Mfg. employees, I'm not an expert in excel area
I want to track the training using conditional formating that can tell me when an employees training has expired
Attached you will find the training matrix example
Thank you in advance for your support

Employees Training.xlsx

[SMAR1]

I forgot to mention, re-training period is 1 year