The federal-state program designed to ensure a safe and clean milk supply is known as what?

The program designed to ensure a safe and clean milk supply at the federal and state levels is indeed known as the IMmediateliy Save (IMS). This program specifically focuses on the inspection and regulation of milk production, processing, and distribution. It aims to set and enforce standards that help to prevent contamination and ensure the quality of milk products consumed by the public.

The other options relate to different aspects of food safety or public health programs but do not specifically target the milk supply. For instance, the FDAVP refers to the Food and Drug Administration’s Voluntary Programs, which encompass broader food safety initiatives rather than focusing solely on milk. The PHSVFSP pertains to the Public Health Service's Food Safety program, and VFS might involve other food safety measures but again does not specifically address the milk supply. Therefore, IMS is key to maintaining the safety and quality of milk through dedicated inspection and enforcement of standards, making it the correct answer.