A provider who is an "Apprentice in TF-EMDR" has completed the fundamental training in TF-EMDR with an approved TF-EMDR Instructor or Senior TF-EMDR Instructor of Seiyu Institute for Health & Training, L3C, and agrees to attend professional consultation and complete a peer-reviewed case study in TF-EMDR within ten months of completing the approved experiential course. The holder of this designation is authorized to use the terms "Therapeutic Fly-fishing with EMDR (TF-EMDR)®" and "The Seiyu-zuri Method®" in advertising and business promotion while they work under consultation with a TF-EMDR Instructor as they conduct nature-based trauma-focused psychotherapy. The holder of this credential has completed the following: * Complete an EMDRIA-approved (or equivalent) Basic Training in EMDR. * Attend and complete a full Therapeutic Fly-fishing with EMDR (TF-EMDR)® Training with a TF-EMDR Instructor or Senior TF-EMDR Instructor, approved by Seiyu Institute for Health & Training, L3C. * Agree to post-training consultation specific to TF-EMDR with a TF-EMDR Instructor or authorized EMDR Consultants™ (approved by EMDRIA or an equivalent organization) who have demonstrated fluency in TF-EMDR. * Agree to practice-based complete a case study in Therapeutic Fly-fishing with EMDR (TF-EMDR)®, to submit for peer review by a TF-EMDR Instructor or Advisor. * Leadership of Seiyu Institute for Health & Training, L3C reserves the right to revoke a person’s credential at any time, if applicable professional ethics have been violated by the holder or as it is deemed necessary to maintain the mission or professional integrity of the organization.