California CBC 2013 CPC 2013. Electric water heater with 20 gallon tank is proposed to go above the ceiling over one of the toilet rooms. What do you require for "attic access" The plan is to access the device thru the suspended ceiling grid system. that will comply with the size requirements in CPC 508.4. Are you also requiring this work platform and adjacent electrical outlet and light fixture? I have always seen these being accessed from below with ladder and lift, but no dedicated platform. If there was a platform provided what would be the live load requirement?