The amount of notice can be important in a TWC case. Learn to write a resignation acceptance letter.In Texas we are under no obligation to accept the two week notice and it is still considered a resignation because they demonstrated intent to leave. The standard here in Texas, an "at will" employment state, is to give two weeks notice. Generally, you should give two week's notice for your old job. That is the conventional standard. If the employee confirms he wants to resign, ask him how much notice he is giving. The standard in the US is to give two weeks notice when you resign. An employer can balk at the timing but that's a cost of doing business. Look at appointment letter's clause of separation.