just a heads up- as of earlier this year (April iirc), it’s no longer required that you register with the Board of Pharmacy since there was such a backlog of people waiting. you technically still can if you wanted to for whatever reason but it’s an extra $50 you aren’t required to pay. just find the practitioner to write the certification then show that to the dispensary basically (ETA: via email) . also the prices vary wildly from practice to practice.

this is the cheapest I’ve found but you can probably find something for less than $85-99 if you shop around.