I am writing to give my resignation from (company name), effective (date), two weeks from today. This resignation was a difficult decision to make.Is a TwoWeek Notice Required in California? No legal requirement in any state to provide 2 weeks' notice but it is a preferred business practice, a courtesy to the employer to help with any transition. Looking to resign from your job? Learn how to write a professional and respectful two weeks' notice email with our helpful templates and tips. It's a professional courtesy to provide a resignation notice at least two weeks before your final day . What should be included in a twoweek notice letter? Your resignation letter does not have to say why you're leaving the job. It's common courtesy to give your employer at least two weeks' notice of your resignation, but sometimes that's not an option.