Based on Isabella's answer, " 实习期至2016年07月14日" means if you want to get on the freeway, you need to have an experienced driver(at least 3 years) accompany you until 07/14/2016.

Above the driver's license is the meaning of the internship period: New regulations, where at the beginning of January 1, 2013 collar or an increase in quasi driving type driver's license (from the driver's license of the initial licensing date) have a year of internship period, during this period driving motor vehicle speed need to have three years of driving experience of master to accompany.驾驶证上面有实习期的意思是： 　　新法规规定，凡2013年1月1日初领或增加的准驾车型驾驶证(从驾驶证的初次领证日期起算)都有一年的实习期限，在此期限内驾驶机动车上高速需要有三年驾龄的师傅陪驾。

Note: the period of practice is over on July 14th 2016, it means one will be a formal driver after July 14th 2016

Note: Internship ends in 07/14/2016. Exactly one year after you got your license, during which you should put a sign of 'newbie' on your car and can only drive on highway under supervision. Buuuuut in fact most people don't always comply those rules. There are many college students who get license during their summer holidays, and they don't have a car so they cannot drive immediately. After several years, they do get a car, but the internship period has already ended legally, so~