The temperatures inside delivery trucks can reach twice the recommended threshold, but federal rules on drug storage conditions do not apply to the booming world of mail-order delivery. The temperatures inside delivery trucks can reach twice the recommended threshold, but federal rules on drug storage conditions do not apply to the booming world of mail-order delivery. Drugs (Pharmaceuticals), Weather, Heat and Heat Waves, Insulin, Delivery Services, CIGNA Corporation, CVS Caremark Corporation, Express Scripts Inc, Food and Drug Administration, OptumRx Inc, your-feed-science, your-feed-healthcare, Regulation and Deregulation of Industry NYT > Science