Pre-trained CNN network from ILSVRC2012 classfication is allowed?

Hi, I want to use a pretrained backbone CNN network. But I find that “For training, all the images (400K+) included in the ILSVRC DET set are permitted.” from a description of the challenge.
So we have two choices, using CNN backbone network which is pretrained on ILSVRC2012 classification set or to train backbone network from scratch.
So I wonder if we can use a pretrained CNN network from ILSVRC2012 classification set or from scratch.

Yes, the model pretrained on ImageNet is allowed~~