What requirements must each meter and regulator meet according to federal codes?

Each meter and regulator must be installed in an accessible location to ensure that they can be easily reached for maintenance, inspection, and monitoring. Accessibility is crucial for safety and functionality, allowing utility workers or inspectors to quickly perform necessary tasks without obstruction.

Additionally, these devices must be protected from damage and should be readable. Protection from damage ensures that the equipment functions correctly without interference from environmental conditions or physical impacts, maintaining its integrity over time. Being readable means that the measurements displayed on the devices can be easily understood, allowing for accurate monitoring of gas usage and ensuring compliance with safety regulations.

Both of these requirements ensure that meters and regulators function properly, are safe to operate, and can be maintained effectively, which is essential for the overall safety of gas piping systems. Thus, the combination of being installed in an accessible location and being protected and readable embodies the comprehensive requirements set forth by federal codes.