Many jurisdictions are enforcing AHSRAE 90.1 or other energy codes now. Houston is very strict, as is California. The AHJ can point you to energy compliance forms that are included in the energy standards. THese are based on the design documents (I am sure that someone could install the wrong bulb and who would know?)
Some other jurisdictions don't give a whit about energy codes. Regardless of enforcement, energy codes are the law in almost every jurisdiction, and any inspector could gig you on them, or any client could come back and say that their building didn't meet minimum codes.
Energy codes are not a life safety issue, but if we our grandchildren are going to have heat and light, we need to start conserving energy now.
--Lawrence LIle
Project SOlutions Engineering