The Tzav Giyus is a letter you will receive in the mail that provides information about your draft day, including when and where you are expected to be.
If your draft office is NOT listed as Tel Hashomer, it is very important to be on time. You will be sent by bus to Bakum, and you don’t want to be late for the bus.
After you receive your Tsav Giyus, it is not uncommon for your draft date to be changed. In most cases, the army uses an SMS system to notify draftees about date changes. Therefore, if you change your address or cell phone number, it is important to update your drafting office with this information.