IMHO, I would say 'no'. However, 99%+ of the ECs have only TR devices. There reasoning is having only TR devices avoids the possibility of installation errors.

They look at the overall dollars and sense of the possibility of having a red tag due to a non-TR device being installed, and the cost of going back.

Although there is no written exception to 406.12, I would not make an issue of this.


John