Yes, the BLM is by no means breathing down your neck. I kept my colt in an approved pen for the gentling process, but I moved him to a more formal boarding facility once he was halter broke. I just sent the BLM an email saying hey he's gentled and I'm moving him to this address and they emailed back essentially saying "cool thanks"! No biggie.
I call all the shots. The only things I can't do is sell my mustang to slaughter or use him for rodeo stock... neither of which I have even the smallest amount of interest in.