Is it a legal requirement to have frosted windows in the bathroom?

It is not a legal requirement to have frosted windows in the bathroom in most jurisdictions. However, some local building codes may require that certain types of windows in bathrooms be obscured or frosted for privacy reasons. For example, windows that are located within a certain distance of a property line or public area may need to be frosted to protect the privacy of the occupants of the bathroom. Additionally, some building codes may require that bathroom windows be frosted if they are located in a room that is used by multiple people, such as a shared bathroom or a public restroom. It is important to check the local building codes in your area to determine whether or not frosted windows are required in bathrooms.