μ = stub; τ = template; ω = WikiProject, Task Force or Portal-related.
To include a template in this category, add <noinclude>[[Category:Custom license tags|{{PAGENAME}}]]</noinclude> to the end of the template code, making sure it starts on the same line as the last character of the code.
This category contains license tags specific to one source excluding image repository sites (i.e. the Library of Congress). User specific licenses that are in the template namespace (but should be in the user space) are in User custom license tags.