I'm trying to do a quick calculation on some track lighting for a "volunteer" project I'm doing and I'm using the NEC 2008. This past week we had training on the IECC 2009 commercial and residential code that the state of MA has adopted and goes into effect July 1. Anyway, I started looking at both books at the same time and the lighting tables don't make since to me now. Maybe I'm missing something here. Anyway IECC has it's max lighting allowances Table 505.5.2 and the NEC has it's min table 220.12. To me it's impossible to meet both requirements! I mean the NEC minimums are higher than the IECC 2009 Maximums in a lot of cases(?). Someone please tell me I'm just tired, or confused and am not reading this right?