As an engineer and specifier, my specifications require one. Do I think that someone not certified can do as good a job? Absolutely, but with that being said, our IT department who control this spec also expect a 25 year warranty on the job, thus the requirement which puts in place the warranty.
On the other hand, I have no idea what are the qualifcations or the cost to become BICSI certified other than there are 3 levels. I believe that the BICSI requirements may be of more value in the design phase.
