1. Ultimate Guitar Tablature Guide ---> https://www.ultimate-guitar.com/contribution/help/rubric
Tells you how your tabs should be formated so that they would be accepted the soonest possible way.
2.Tabs Pending Approval FAQ ---> https://www.ultimate-guitar.com/contribution/help/approvalQueueFAQ
Answers to all questions about approval queue, Tab Author's levels, vetoing and more stuff of that kind.
It's highly recommended to read both articles before writing your first Tab!