​The only means of obtaining an ARDMS credential is by examination. Required prerequisites must be met before an applicant can earn an ARDMS credential.

Please note: Applicants may pursue the FE specialty under either the RDMS or RDCS credential. Once you take the examination under either the RDMS or RDCS credential area, it cannot be switched.

Applicants may apply and take the SPI examination and the specialty examination in any order. However, once the first examination is passed (either the SPI or specialty), you are required to take and pass the second examination within five years of passing the first examination.