I receive questions on electromagnetic locks every single week. On one particularly memorable day (that I wish I could forget), I was asked by a security integrator to explain these two sections of the IBC to a state code board, so they would realize that only one section of the code should be applied to the door in question, not both. Because of the way the code was written then, and lack of understanding/interest by the board, I was not able to convince them. I failed!
Since then, changes have been made to the model codes to help avoid this confusion, and the IBC Commentary has been edited to make the intent more clear. I hope this video sums up the requirements in a way that will help answer any remaining questions. Please share it with anyone who needs to understand the code requirements that apply to mag-locks.