iwire: The 2008 NEC Handbook supports your argument. As a matter of fact, it illustrates the exact type of installation the OP posted. However, the NEC Handbook is not enforceable and does not constitute formal interpretations of the NFPA. As a matter of fact, the handbook contains a Notice Concerning Liability stating, "neither the NFPA nor the contributors to this handbook guarantee the accuracy or completeness of or assume any liability in connection with the information and opinions contained within this handbook."
Additionally, I, along with several other people in this forum disagree that the Code permits the conduit to be supported by the truss framing members without also securing it per 358.30(A) because 358.30 requires compliance with both (A) and (B). There is no "clear release of the securing requirements" in the 2008 NEC or any of the other versions you posted. The Code does not say "either (A) or (B)" - it says comply with both (A) and (B), period.
If you can provide a Code reference where it says that if the EMT is supported by framing members every 10 feet then it doesn't need to be secured per 358.30(A), I'll buy in. But until then, I'm standing my ground, along with several other people in this forum, many of which are inspectors and the very people who can make your life difficult.
And the handbook does call it framing member.
Stands for what?
Applying what you want instead of what is required?
If I make it in big bold letters will that change your mind? :roll:
Is there any doubt that securing the EMT per 358.30(A) in addition supporting it per 358.30(B) results in a safer installation? If not, then it's not a matter of what people "applying what they want instead of what is required." You make it sound like securing the EMT per 358.30(A) would be a bad thing. If the CMP truly means to disregard 358.30(A) if the installation complies with 358.30(B), then securing it per 358.30(A) is going above what is required for the benefit of everyone involved. The end user gets a safer installation and the electricians make a little more money.