Twin Falls, ID Building Safety: Electrical Permits (2026)

Section 4-2-4 of the Twin Falls City Code requires an application for a wiring permit at the city building department for new basic wiring. Section 4-2-3 defines basic wiring as all wiring from the point of attachment to the power supplier's service drop to all lighting and power outlets throughout a building, structure, dwelling or premises, including meter bases, fusing, circuit breakers, switches and disconnecting equipment, and branch or feeder circuits for fixed or semifixed machinery, apparatus or appliances; extension cable for readily portable small appliances is outside the definition.

Applicants describe the character of the work and the location, ownership, occupancy and use of the premises, and the administrative authority can require plans, specifications or drawings. When the submittal complies with the code, the permit issues on payment of the fee under the adopted fee schedule at the city building department, and section 4-2-10 makes fees due on commencement of the work and payable before inspection. Section 4-2-1 adopts the national electrical code, the 1981 edition together with all subsequent editions, and the most current edition with amendments adopted by the Idaho electrical board prevails.

Under section 4-2-2 the city appoints a qualified electrical inspector responsible for installations within the corporate limits and the area of impact, except electrical public utilities maintaining their own lines and equipment and all communication circuits, wires and apparatus. A permit expires if the work is not commenced within 180 days of issuance or is suspended or abandoned for 180 days after starting, and it can be renewed for another 180 days on request and payment of the $40.00 renewal fee.