Section 16.03.09.624 - PREVENTIVE HEALTH ASSISTANCE (PHA): PROVIDER QUALIFICATIONS AND DUTIES01.Provider Agreement. A behavioral PHA vendor must have a fully-executed provider agreement on file with the Department prior to providing services or products.02.Prior Authorization. A behavioral PHA vendor must request prior authorization from the Department for each product or service provided as a PHA benefit.03.Medications and Pharmaceutical Supplies Vendor. Each vendor must be a licensed pharmacy and must meet the criteria in Section 664 of these rules for prescription drug provider qualifications and duties.04.Weight Management Program Vendor. Each vendor must: a. Be established as a business that serves the general public;b. Meet all state, county, and local business licensing requirements: andc. Be able to provide a weight management program as described in Section 622 of these rules.Idaho Admin. Code r. 16.03.09.624