"Hi Rachelle, I am a Proctor in BA and Shell. This is an old post and I don't know if you're still looking for Proctors in Southern California or where ever. I know of a couple others in this area too if that helps."
Combustion Appliance Zone Testing (CAZ) Made Easy (March 24, 2016)
-Adapting to the new BPI standard
-RESNET testing requirements
-NFPA testing requirements
-Best practices for best results