I have a small cafe with a kitchen. THey will do alot of baking in the kitchen as well as washing farm produce that they sell at the farmers market. There is also a small creamery where they will make ice cream from there goats milk. It is a stick built building with drywall and .75 inch paneling inside and metal siding on the outside. It is a class B occupancy (under 50 people). What wiring methods do I need to use. There are no specs for the buildings. It is on a farm so is somewhat agriculture and did not require a commercial building permit because of its small size. I am install egress lighting. But am a little confused on what wiring method I can use. I believe I can use NM. Any direction would be greatly appreciated.