Define what is a tamper resistant plug outlet and why now required:

A tamper-resistant plug outlet is a type of electrical outlet designed with a built-in mechanism to prevent objects from being inserted into one or both slots. The mechanism is typically a spring-loaded shutter that covers the slots, which requires equal pressure from both prongs of the plug to open.

Tamper-resistant plug outlets are now required in many parts of the world, including the United States and Canada, as a safety measure to prevent children from inserting objects into the outlet and potentially receiving an electric shock. According to the National Electrical Code (NEC), all new and renovated dwellings built after 2008 must have tamper-resistant receptacles installed.

Statistics show that electrocution and electrical burns are among the leading causes of injuries to young children, and many of these injuries are caused by children inserting objects into electrical outlets. Tamper-resistant plug outlets are designed to significantly reduce the risk of these types of injuries by providing an extra layer of protection.