May I point to Article 370 as affirmation of Bob's complaint? What precipitated the use of the word "nominal" in box supports when they speak of a 1" X 2"?
Everytime you write a rule, it is subject to interpretation. The founding fathers of the country knew that with the principle that the "Best Gummint is the least gummint" (OK I know that was Thom. Jefferson) but we never seem to learn that do we?
As Freddy Hartwell pointed out some time ago, read 430-52(c)(1), and follow up with the exception......we write a rule, and then immediately override it
Don't even start me on AFCI's.
You're right elecbob, and it's gonna get worse, not better. The code was written by a combination of electricians, and engineers, but heavy on the trade experience for each committee. Take a look at your committees now, and prepare a foot thick place on your desk.