Hello and thanks so much for using Just Answer. Yes, companies can make up their own rules.
I will need just a little bit more information before I can respond:
Did you get an employee handbook when you were hired? If so, did it have a section on termination?
I'll look forward to your response!
BTW, sometimes there can be a delay of many hours before I can get back to you. Be patient; I won't forget you, and I can usually respond within no more than 8 hours.
There are no such rules unless you work for a public employer or unless they've adopted such rules through a union contract or through internal policies. Most employees are "at will" which means that you could work somewhere 18 years and could be fired because you wore green socks to work one day.
What were you written up for? What was your job?
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