Mo. Rev. Stat. § 324.490: Expiration of licenses.

1. Licenses issued pursuant to sections 324.475 to 324.499 shall expire every other year. Renewal applications shall be submitted to the division along with the appropriate renewal fee.

2. A license to practice acupuncture which is not renewed on or before the date of its expiration becomes invalid. Such license may be restored by complying with the provisions of section 324.493.