Yes. .BR domain names must use specific second-level extensions, such as .com.br for commercial use, .org.br for non-profits, or .net.br for network services. You cannot register directly under ".br." A local Brazilian tax ID or trustee is mandatory, and two active nameservers are required for the domain to be activated. Some specialized extensions, like .gov.br and .mil.br, are strictly limited to Brazilian government or military entities. Register.domains simplifies these rules by clearly indicating eligible extensions and providing the necessary local trustee services.