Help Please log in to determine if you are eligible to purchase PT Programs. SALIVARY CORTISOL - SALC Analytes/procedures in bold type are regulated for proficiency testing by the Centers for Medicare & Medicaid Services (CMS). Analyte Challenges per Shipment Number of Shipments Salivary cortisol 3 Two shipments per year Program Information Three 1.0‑mL synthetic oral fluid specimens Shipping Schedule Shipment A: April 14 Shipment B: September 1 Guest Log in/Register