There are times VD calcs are necessary, however there are many times when they are not.
Comm/Ind here in NJ requires plans, one-lines, etc prepared by a Lic Architect/PE/EE. Instances where this could become an issue are noticed sometimes during plan review, and only 'suggestions' can be mentioned. Changing the FPN to 'code' eliminates 'suggestion' to 'comply'.
As to EC's and electricians being affected by this, in the McMansions it may become an issue. I include VD calcs in one of the classes I teach at Vo-Tech, and it is usually well received.
