The mission call also informs the prospective missionary what language he or she will be expected to use during his or her mission.
Members of the Quorum of the Twelve Apostles are responsible for assigning missionaries to a particular mission.
Missionaries bound for foreign-language missions spend six to nine weeks at an MTC, depending on the language to be learned.
Many missionaries learn a new language at a missionary training center as part of their assignment.
Missions typically last two years for males, 18 months for females, and 6 to 18 months for older couples.
Many Latter-day Saints save money during their teenage years to cover their mission expenses.
Throughout the church's history, over one million missionaries have been sent on missions.
The priesthood ban was lifted during Kimball's presidency and since 1978 there has been no restrictions to missionary service that are based on race or ethnicity.
After application to the church and the requisite approval, prospective missionaries receive a "call to serve"—an official notification of their location assignment—through the mail from the President of the Church.
In the last two decades, the LDS Church has stepped up its call for senior couple missionaries.
All missionaries must meet certain minimum standards of worthiness.
All missionaries are set apart by the laying on of hands to preach the gospel; this is usually performed by the missionary's stake president.