AHJ= Authority Having Jurisdiction.
If this was a commercial electrician's job, he is no doubt violating the Code with his gutter installations everywhere he goes.
If there are more than 30 current carrying conductors in any cross-section of a metallic gutter or wireway, they must be derated per ('02) 310.15(B)(2)(a).
See 366.7(A) and 376.22
Sure, it probably passed