If you're asking, "Is non-fiction allowed for NaNoWriMo?" than the answer is yes, anything goes I believe.
“We’re still here,” he says, his voice cold, his hands shaking. “We know how to be invisible, how to play dead. But at the end of the day, we are still here.” ~Dax
Teacher: "What do we do with adjectives in Spanish?"
S: "We eat them!"
You're writing a memoir, a script, a nonfiction book about turtles or something else that's not a novel. You're a NaNoRebel, baby! Converse with your fellow outlaws here.
Yes. There's a forum for people doing that sort of thing, anyway, so go for it.
Be happy, my friend; and if you obey me in this one request, remain satisfied that nothing on earth will have the power to interrupt my tranquility. — Mary Shelley, Frankenstein