mmartinez

Once a version of a code is adopted, the AHJ can elect to set more stringent standards, (which can be a real PITA if you aren't aware and get tagged). The AHJ has the right to adopt lower standards than the code but will never do that because it then has to assume liability. That's one of the reasons why they delay adopting the most current code until all interpretations have been ferreted out. So, the AHJ can base the normal inspections on the 2008 code but also add anything from the 2011 code as long as it doesn't adopt the 2011 code. It is only required to enforce the adopted code, (plus any of the PITA items). And if your not in good standing with your inspectors......!

I'm not sure about the higher standard thing - its not like NEC is a law, it's a standard. I truly believe the AHJ can do whatever..my opinion. gn

Keep in mind, per the 2008 NEC, Article 600.7, (B)Bonding, (1) bonding of Metal parts, metal parts and equipment shall be bonded together.....and shall meet the requirements of 250.90. Also, under 600.24, Class 2 Power Sources, (B)Grounding, metal parts of signs and outline lighting systems shall be bonded and grounded in accordance with 600.7. This is an NEC requirement, not solely a UL requirement. also, a majority of municipalities run one to two code cycles behind the current so if the 2011 code remeoves this requirement, it may still be in force at the local level. Additionally, the AHJ has the right to supercede the requirements of the NEC. From my perspective, the simplest thing to do is provide bonding conductors and include installation instructions for your sub contract installers. Pretty low-cost insurance against a red tag, if you ask me.