Final answer:
License restrictions are listed in legal or regulatory codes which specify the applicable restrictions for the license in question.
Step-by-step explanation:
Restrictions placed on licenses, such as those for handguns, are typically listed in regulatory or legal codes.
These codes include detailed licensing overviews that specify the applicable restrictions, whether they relate to firearm ownership, usage, or the necessity for safety measures like keeping firearms unloaded and secured with a trigger lock.
When looking at different kinds of licenses, you may find that they come with a range of restrictions, from noncommercial stipulations to requirements on storage and handling, which are all outlined within the comprehensive legal framework of these licensing codes.