Thanks for reaching out. Good news: the answer is in the lesson reading itself, not the illustration. Under “369.10 Uses Permitted,” item 5 states that IBP systems are permitted “for voltages up to and including 35,000 volts ac nominal,” so the maximum voltage is 35,000 V (option D). The photo of the IBP hardware is just an illustration and does not contain the value. Hope that clears it up, and thanks for taking the time to ask.

Thank you. This is fixed.

Thanks for checking. We reviewed the last question and the answer is correct per 2023 NEC 334.10 (a 1/16 in. steel plate). Let us know if you meant a different question.

Hi Rudy, great question. Yes, the course is fully self-paced. You can log in and out as often as you like and pick up right where you left off, so it works well around travel and long hours. Just complete it before your renewal deadline.

Thanks for the careful read, Bart. We checked the current material and Section 220.41 (Dwelling Units, Minimum Unit Load) is not referenced in the 230.85 content, so there is nothing to reconcile there. The 230.85 emergency-disconnect requirements are correct as written. If you are still seeing a 220.41 reference somewhere, tell us where and we will fix it.

Good catch, Carl. That question has been corrected so it now matches the section. For 620.12(A) traveling cables, the minimum size for communications conductors is 24 AWG per the 2023 NEC. Thanks for helping us keep the content accurate.

Thanks for the note. This question has been corrected and now includes the fourth option. Per 2023 NEC 210.8(F), garages at or below grade, accessory buildings, and boathouses all require GFCI protection when a receptacle is replaced, so the one that is NOT required is the excepted receptacle (option D). Appreciate your patience.

Thank you for reporting this. You spotted a real issue: an empty answer option was showing on that question, and we’ve removed it. On the answer itself, the 2023 NEC (220.5(C)) now excludes only open porches and unfinished areas from the floor-area calculation, since garages were removed in the 2023 edition, so the correct choice is Open porches. Thanks again for catching it.

Thanks for flagging this, Richard. You were right that the answer choices needed attention, and we’ve corrected the option labels on that question. For reference, 517.30(B) requires N + 1 units, so when 10 units can carry the demand load, 11 are required. Appreciate you taking the time to report it.