Well you don't need to wait for them to mail the TAN. You can call and confirm. They will ask if I need a ATT and transfer me then.
Registration certificate. ( Yellow card )
Well you need to gather the buyer contact info ( phone/email.. Other then a username on a forum ) Name and PAL
Then you call 1800 731 4000, follow prompts 1 4 2.. English, transfer section, and continue.
You say you want to start a transfer, they will ask if you are the buyer or seller. They will ask your info, name, address, PAL # place of birth etc. Then which firearm you be transferring. So they will ask for the registration certificate number, make, model, serial number. And then the buyers name and PAL number..
They will give you a reference number to give to the buyer. They will call and confirm their info. Depending on the buyers province ( buyers province CFO approves ) call in a few days to check on it. Once complete you box it up good ( I use zip ties alot ) and call the CFO to get a short term ATT to take the restricted to the post office.
Naturally make sure everything is unloaded and no ammo to be shipped. Don't need to tell them what it is. Say no to dangerous good. You must ship by ground.. No xpresspost. And you need a signature required.