If you are referring to a Silver or Gold certification from MPSA , Wales is correct that the consensus is no. If, however, you are actually asking about a required certification on an MSC website so that you can do shops for a particular client, then yes, you need to get "certified" by passing the required test.
@sparklesthekitty wrote:
Are there any useful ones out there or just go by the platform you are on?
Shopping Southeast Pennsylvania, Delaware above the canal, and South Jersey since 2008