No, there isn't. The US Constitution is very clear on that.
There is one other document, The Declaration of Independence. Use only as a last resort, and expect violent push back from the PsTB, but it is the ultimate, get out of tyranny permission slip from God.
"When in the Course of human events, it becomes necessary for one people to dissolve the political bands which have connected them with another, and to assume among the powers of the earth, the separate and equal station to which the Laws of Nature and of Nature's God entitle them, a decent respect to the opinions of mankind requires that they should declare the causes which impel them to the separation..."
How would you ever get agreement to let them in as a State? That would give you the power of two U.S. Senators for a mere 53,000 people. A great deal and everyone would want to do it.
Very clear on a lot of things, so what. We have the king we have long awaited for.
1Sa 8:5 And said unto him, Behold, thou art old, and thy sons walk not in thy ways: now make us a king to judge us like all the nations.
1Sa 8:6 But the thing displeased Samuel, when they said, Give us a king to judge us. And Samuel prayed unto the LORD.
1Sa 8:7 And the LORD said unto Samuel, Hearken unto the voice of the people in all that they say unto thee: for they have not rejected thee, but they have rejected me, that I should not reign over them.