A Residential Electrician (1) performs work for a C-10 electrical contractor installing, constructing, or maintaining any electrical system that is covered by the National Electrical Code in single family homes and multi family units, including hotels and motels, where the primary occupancy of the building is considered residential and the maximum voltage received from a utility company is a 3 phase, 4 wire, 120/208 or 120/240 volts. 2) performs work for a C-10 electrical contractor installing the required panel boards and feeders for commercial tenant space in a multi-family/multi-use occupancies falling under subsection (1) above, where less than 50 percent of the first floor level is used for commercial tenant space, but not performing any tenant improvement for these spaces. (3) does not perform work in occupancies that fall under the scope of Article 517 of the National Electrical Code.