Outlet boxes should be installed so that the covers are what?

The correct answer is that outlet boxes should be installed so that they are accessible. This is a crucial requirement for ensuring safety and functionality. Accessibility allows users to easily reach the outlets for plugging and unplugging devices, which is particularly important in emergency situations or for regular maintenance. If outlet boxes are not easily accessible, it could pose safety risks and make it more difficult for individuals to use the electrical outlets as intended.

While it is also important for outlet boxes to be level with the wall for aesthetic reasons and securely fastened to maintain structural integrity, the primary concern is ensuring the outlets can be used comfortably and safely. Painting the outlet boxes to match the wall, while it might enhance appearance, does not address the practical aspect of accessibility. Thus, prioritizing accessibility aligns with the standards set for electrical installations to ensure they are functional and user-friendly.