Right, which is just what I said. I would not expect it to take too terribly long to study up for the safety/building code portions enough to pass, if already

Right, which is just what I said. I would not expect it to take too terribly long to study up for the safety/building code portions enough to pass, if already familiar with how electricity works. I would find a 2 week course entirely plausible to get up to speed enough to be able to pass such a certification test, if you already know the basics of how electricity works, which makes some of the safety rules relatively obvious, and should make learning the remaining rules easier. A lot depends on the jurisdiction and what they want to test. For example some jurisdictions might want to test all electricians on the >600V stuff rules, but since many electricians will never touch that stuff working is residential or non-industrial commercial, other jurisdictions would omit that from the certifications, or have a sperate certification for that part of code. A lot of complexity of the code comes from the code laying out general rules, and then some exceptions. While I'd expect such a test to cover some of the more commonly used exceptions, and exceptions that are more restrictive than the general rule, some jurisdictions probably won't test about less common exceptions that make rules more permissive. In those scenarios knowing the general rule is probably good enough for safety. Applying the more restrictive general rule when an exception was available often won't harm safety.