CCIR (Comittee Consultatif International Radiotelecommunique) is the black and white (B/W) TV standrard used in Europe and Australia. It is the predecessor of PAL (color video format) developed later and used in Europe and Asia.
EIA (Electronics Industry Association) is B&W television format used in USA, Japan, Canada. And in the same way, EIA was a predecessor to NTSC color standard.
When you read that one or another home security camera system or surveillance technology is compatible with CCIR/EIA, it means that they both can be used/viewed in this video format.