A list of spacing rules cannot explain every emission problem. The first review question is where a switching or return current completes its loop.
What to examine in the layout brief
Mark high-di/dt loops, connector boundaries and reference interruptions. Place suppression and decoupling with the actual current path in mind. Check whether cable-connected nets leave the board near a noisy return route or an unplanned chassis connection.
What belongs in the release record
Record the suspected source, coupling path and return route before making a corrective change. Layout review supports a test plan; it does not replace an EMC measurement on the assembled product.
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Send the current schematic and board revision, mechanical constraints, intended construction and the question you need resolved. Circuit Edge Technologies provides PCB layout, hardware-design support, manufacturing review and practical training from Sector 70, IMT Faridabad. A useful enquiry separates the supplied inputs from decisions that still need agreement, so the scope of the review stays clear.
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Numerical limits and acceptance criteria must come from the actual component documentation, supplier agreement and applicable standards. No proprietary standard tables are reproduced.