If you want to participate in the first ICO on NEO, you need to register on the Red Pulse RPX KYC whitelist before Sept 10.
https://coin.red-pulse.com/kyc/No, you have to register until September 7:
"The form will be closed on Sept 7 0900 EDT / 1300 GMT / 2100 CST. No submissions will be allowed after that, and the form will not be available."