The Federal government provides information about the annual Immigration Visa Lottery. The lottery is an opportunity to obtain a Permanent Resident Visa.
You can only register for the lottery during the specified registration period. Registration for the 2017 Diversity Visa Lottery opened on October 1, 2015 and closed November 3, 2015.
Registration for the 2018 program has not begun yet. The Federal government's website will be updated when registration for the 2018 lottery opens.