When a head service valve or meter valve is closed, what should be done to ensure it remains secure?

When a head service valve or meter valve is closed, locking it by the utility company is crucial to ensure it remains secure. This action helps prevent unauthorized access or tampering, which could lead to safety hazards or gas leaks. Locking the valve ensures that only trained personnel have the ability to manipulate the valve, maintaining the integrity and safety of the gas piping system.

Tagging it for maintenance, sealing it with tape, or leaving it as is without any changes do not provide the same level of security. While tagging may indicate the valve is closed, it does not prevent someone from opening it. Tape may not reliably keep the valve secure against tampering and can degrade over time. Leaving the valve without any modifications poses a risk since it could be inadvertently opened by someone unaware of its status. Thus, locking the valve is the most effective method to maintain security and safety when the valve is not in use.