Customarily, in the US, it is three days. We've compiled a definitive guide, made up of all of the key, important questions to ask, in order to cover an all-encompassing range of integral bases.The short answer is yes, you can decline the offer. I suspect that the offer letter says that when you become employed, you would be an employee at will. As a general rule, an offer may be rescindedits just an offer, not a contractin fact, it may be withdrawn after acceptance too! New employees should receive a welcome email from their respective HR Director. Services to help with job training, education, employment accommodations, resume development, and job seeking skills coaching. SAC Employment Website to be considered for this position: A Mt. San Antonio College online application. Fill out an application and watch a short video to see what the job is like. Sick leave hours are not eligible for pay out upon separation from employment.