Wis. Stat. § 448.82: Reciprocal certificate.

Upon application and payment of the fee specified in s. 440.05 (2), the affiliated credentialing board shall grant a dietitian certificate to an individual who holds a similar certificate or license in another state or territory of the United States if the affiliated credentialing board determines that the requirements for receiving the certificate in the other state or territory are substantially equivalent to the requirements under s. 448.78 (1m).