regulated loads and unregulated process loads

Regulated loads are ones covered by 90.1 (envelope, lighting, motors, HVAC, hot water, etc.). Unregulated process loads are items not covered by 90.1.

Of note, under LEED V4, process loads have more impact in all tracks as opposed to only Retail/Hospitality/ID&C. Simplest way to help clients understand this is that the "process" is case-specific and normally doesn't run 24/7, like commercial cooking & warewashing equipment, as well as office equipment. But if the building was a frozen food warehouse, process loads would likely be the largest impact on the project. However, in the case of commercial ware washing, water usage of that piece can affect the (regulated) hot water heater sizing since it has to supply incoming water at usually 110 degrees & up. Here is a link to the specifics about hot water heaters and Energy Star standards.
http://www.energystar.gov/index.cfm?c=water_heat.pr_crit_water_heaters