You have to look up the laws in your state and then locally as well. Some states outright ban the mounting of underglow all together. Others only ban having them on while driving. Some ban certain colors. Others don't ban anything. On top of that some local governments may have restrictions on their use that go beyond state law. is neon underglow illegal in australia. June 27, 2022; Posted by types of therapists for mental health; 27 Jun.