(Without reading any comments since my last post) copied from another thread on this site ---
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I would expect that the moderators and those who claim to be inspectors would have read the local laws that adopt the building codes.
Usually the process is that a national building code is adopted and that building code includes reference to the NEC.
All national building codes allow engineering. That includes engineering of the electrials.
The national building codes and the NEC are prescriptions. That is, based on general assumptions general engineering solutions have been produced and reduced to the tables and text of the codes and the NEC.
The engineering allowed by the national building codes and by included reference by the NEC consists of project specific assumptions and produces project specific engineering solution.
In general, an engineered solution will not "meet" the NEC. It will not "meet" the NEC because the design assumptions more accurately reflect the needs.
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I suggest that those of you who hold a differing opinion consult your attornies before you reject an engineer's work.
