English Tech/Engineering Mechanics / Mech Engineering Hygienic Design Guidelines

The section is about pumps used in fluid handling systems. There is a table listing the limitations of the pumps in terms of cleanability. Two columns on the table are titled "by CIP" and "by breakdown" side by side. Below them, there are boxes ticked/unticked. The left column includes pump types and the right column includes hygiene weaknesses. I guess "by breakdown" means when the pump is to be cleaned etc. in full detail or as completely demounted, but I have not been able to figure out what "by CIP" means. Please help...