What are the clearance requirements around electrical panels and HVAC equipment?

A working space of 30" in width, 36" in depth, and 78" in height shall be maintained at all times. Where the width of the electrical panel or electrical service equipment exceeds 30" the working space shall be no less than the width of the panel. A clear space of 36" shall be maintained around all heating equipment and any heat producing equipment. This provides for quick access in the event of immediate shut down of electrical or HVAC equipment as well as eliminating the chance of an electrical spark or flame that could ignite combustibles stored too close to these appliances and equipment as well as electrocution hazard if equipment would become energized in the event of a failure. (Reference code: 2009 IFC - Section 605; 2006 IMC - Chapter 9; Manufacturer's instructions).

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1. What size fire extinguisher do you need and how often do they need to be inspected?
2. Do you need to test the emergency and exit lighting?
3. Do you need to display the street address?
4. What are the clearance requirements around electrical panels and HVAC equipment?
5. How often should the fire protection systems be inspected, tested, or maintained?
6. Should emergency contact information be updated periodically?
7. I received notification of violation(s). What should I do?
8. How often will my business or building be inspected by the municipality?