OESC 445.6 Listing.

In Oregon, Stationary generators are NOT required to be listed even though most already are.
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In Oregon, Stationary generators are NOT required to be listed even though most already are.

According to NEC® Section 445.6, Stationary generators (other than one of a kind or custom manufactured generators) shall be listed.

Oregon has chosen not to adopt this requirement.

Oregon amendments to the 2023 NEC® are located in “Table 1-E” of the Oregon Electrical Specialty Code (OESC) which can be seen using the following link or the OESC PDF file located near the bottom of the screen: 2023 OESC

  Click here to view the OESC  

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OESC 445.6 Listing.

Below is a Real Question from our Electrical Continuing Education Courses for Electrical License Renewal:

In Oregon, which of the following is true?

A: All generators shall be listed for emergency use.
B: All generators shall be listed.
C: Stationary generators are NOT required to be listed.
D: All generators shall be listed for standby use.
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