Which of the following does NOT constitute a rule of circuit tracing?

In the context of circuit tracing, the correct choice is the option that does not directly pertain to the practice of physically tracing circuits. Circuit tracing typically involves identifying the various components within a circuit, understanding how they are interrelated, and following the path of current flow through those components. The act of tracing the circuit itself is part of the process, as is using appropriate technical references to gather information about the components and their layout.

While reviewing electrical codes is crucial for overall safety and compliance with regulations, it is more of a foundational practice related to electrical work and design rather than a specific rule or technique used during the tracing process itself. The other options directly relate to the practical steps involved in mapping out a circuit, making those choices integral to circuit tracing methodology.