A standard follows a predictable hierarchical structure. Here are the essential blocks you must include.
For any serious CM4 project, the schematic is the starting point. The best practice is to leverage the official open-source designs provided by the Raspberry Pi Foundation. cm4 94v0 schematics
The rating is a high-level safety standard indicating the PCB material is flame-retardant and self-extinguishing. A standard follows a predictable hierarchical structure