barrel ageing & TTB

[3guysandabeerd]

fellow brewers im looking to start getting in to doing barrel ageing or using oak spirals what is the processes every one uses for submission of the product to the ttb I understand oak chips and un used barrels don't have to got throw the process but what about used barrels and soaked oak chips or spirals
ps I have searched on here didn't find any thing that went in to detail once again thanks for any help
cheers matt 3GB