Ensure your calendar availability is up to date. To learn more about hosting longer stays, check out this guide.
Update your minimum night stay to 30 nights or more. 
If your address is not an exact match, you must contact customer service in order to update your listing address.
Your listing address (what you have entered on your Airbnb listing) must match exactly with what is on New York City’s list. Once you are registered with the City of New York, be sure to add your registration details to your listing(s) on Airbnb. While waiting for your approval, you may set your calendar to 30 nights minimum so that the OSE may review and approve your listing’s eligibility for short-term rental registration.
Learn about the registration process on the city’s website and apply if eligible under the new rules. 
Starting September 5, the city began enforcing its rules which require all eligible short-term rental Hosts to be registered with the city, or have Class B status, to continue hosting short-term rental stays.