14 C.F.R. § 65.57
An applicant for an aircraft dispatcher certificate must present documentary evidence satisfactory to the Administrator that he or she has the experience prescribed in paragraph (a) of this section or has accomplished the training described in paragraph (b) of this section as follows:
(a) A total of at least 2 years experience in the 3 years before the date of application, in any one or in any combination of the following areas:
(1) In military aircraft operations as a—
(2) In aircraft operations conducted under part 121 of this chapter as—
(3) In aircraft operations as—