In Toronto , a red tag from Enbridge Gas (or a licensed gas technician) indicates that a gas appliance is unsafe and requires immediate attention, potentially due to a violation of the Ontario Gas Installation Code B149. 

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Here's a more detailed explanation:

• What it means:

  A red tag signifies that a gas appliance (like a furnace, boiler, or water heater) poses a safety risk and cannot be used until the identified issue is addressed. 

• Who issues them:

  Enbridge Gas or a licensed gas technician, who is TSSA certified, issues red tags when they find a gas appliance is unsafe. We are TSSA certified to fix red tags

• Why it's important:

  Red tagging is a safety measure to protect you, your family, and even your neighbors from potential hazards associated with unsafe gas appliances. 

• What to do:

  When you receive a red tag, it's crucial to contact a qualified gas technician as soon as possible to arrange for necessary repairs or replacements. 

• How to get it cleared:

  Once the repairs are completed and the appliance is deemed safe by a certified gas technician, they will inform the gas utility company that the red tag has been cleared. 

• Technical Standards and Safety Act:

  The red tagging program is controlled by the TSSA (Technical Standards Safety Authority) and the use of gas appliances are subject to rules in the Technical Standards and Safety Act and its regulation.