Is the company required to submit another request to the Chief Boiler Inspector after the variance expires? Customer Success Team September 13, 2021 20:08 Updated Follow No Tennessee Department of Labor/Workplace Regulations and Compliance/Boilers Related articles What documents can I use to verify my identity? What happens after the variance expires? How do I contact the Boiler Unit? Is a company with an expired variance required to appear before the Board of Boiler Rules and request a variance for editorial or equipment changes?