The document compares different EAP models based on whether counselors are staff or affiliates, and whether services are provided on-site or off-site. It discusses the advantages and disadvantages of internal vs external models, and on-site vs off-site services. Various session models are outlined including those providing 1-3, 1-5, or 1-8 in-person sessions as well as telephonic consultations and counseling. Factors like cost, utilization rates, employee satisfaction, and regulatory considerations are examined for each approach.