Yes, some domain names are restricted for the .dance domain extension

Anyone or any business is eligible to register the .dance domain extension.

The minimum period to register the .dance domain extension is 1 year.

The .dance domain name is registered immediately during general availability.

Once the domain expires, it will be in Renewal Grace Period for 0-42 days when the domain name can only be renewed but not transferred to another registrar, followed by a 30-day Redemption Period, when all services associated with the domain name (eg. DNS, website, emails) will automatically not be available but the domain can still be renewed. At the end of the Redemption Period, it enters into a 5days Pending Purge period and the domain name can no longer be renewed or recovered. After this period, the domain will be available to the general public for re-registration on “First come First serve basis”.

Domain Name must:

-have minimum of 2 and a maximum of 63 characters;
-begin with a letter or a number and end with a letter or a number;
-not contain a dash in the third and fourth positions
-use the English character set and may contain letters (i.e., a-z, A-Z),numbers (i.e. 0-9) and dashes (-) or a combination of these;
-neither begin with, nor end with a dash;
-not include space

United Tld Holdco Ltd. manages the registration of domain names with the .dance domain name extension

The maximum period for the domain registration is 5 Years.