Turn on change tracking. On the Review tab, in the Tracking group, click the Track Changes button. The Track Changes button becomes highlighted, as shown in the following image. You can additionally add a track changes indicator to the status bar. To add it, right-click the status bar and click Track Changes.
An official passport is a passport which is issued to someone who must travel internationally on official state business. These passports are issued specifically to people who need to travel, rather than to people who are being assigned or posted overseas.
A passport's validity is generally determined by the applicant's age. In the US, passports issued for adults ages 16 and older are valid for 10 years. Children 15 years of age and under receive passports valid for 5 years. There are two primary exceptions to this rule: a second passport is valid for 2 years and an emergency passport is valid for 1 year. In some instances, when replacing a lost passport, for example, the Department of State may issue a passport with lesser validity (usually 1 or 2 years).