Federal Aviation Administration Federal Aviation Regulation (FAR): 65.71
(a) To be eligible for a mechanic certificate and associated ratings, a person must-
(1) Be at least 18 years of age
(2) Be able to read, write, speak and understand the English language, or in the case of an applicant who does not meet this requirement and who is employed outside of the United States by a U.S. air carrier, have his certificate endorsed "Valid only outside the United States"
(3) Have passed all of the prescribed tests within a period of 24 months;
(b) A certificated mechanic who applies for an additional rating must meet the requirements of Section 65.77 and, within a period of 24 months, pass the tests prescribed by Sections 65.75 and 65.79 for the additional rating sought.
After completing the required LLCC courses, students must take a written test for each section- general, airframe, and powerplant- in addition to an oral and practical test with an FAA Designated Mechanic Examiner (DME) to receive their FAA certification.