Mercury Thermostat Compliance

Resolution to 2013/2014 Summary of Violations

On February 10, 2016 the Department of Toxic Substances Control (DTSC) and twenty-five manufacturers came to an agreement to improve out-of-service mercury-added thermostat collections in California by entering into a Consent Order.  The Consent Order requires the manufacturers to develop an outreach plan and pilot projects to increase awareness and incentivize safe disposal of mercury-added thermostats.  The final executed Consent Order can be viewed below.

Consent Order Updates

On January 5, 2017 the Thermostat Recycling Corporation (TRC) submitted plans prepared by S. Groner Associates for Program Modifications.  DTSC requests for public comments on the plans to be submitted to by January 23, 2017 5PM PST. 

Please click on the link below to read the submitted Program Modification Plan.

Archived Documents Relating to Consent Order

The following manufacturers who did not enter into the Consent Order were issued Enforcement Orders to comply with the Mercury Thermostat Collection Act.  Those who settled with DTSC entered into a separate Consent Order.

Daikin Applied (McQuay International)


Goodman Global, Inc.


PSG Controls, Inc.


Rheem Manufacturing Company


TPI Corporation



View the complete version of TRC's 2015 annual report

View the complete version of TRC's 2014 annual report

The Thermostat Recycling Corporation (TRC) is a non-profit corporation created by thermostat manufacturers for the purpose of promoting and facilitating the collection and proper disposal of mercury thermostats.


DTSC is required by the law to post a notice on its Internet Web site listing manufacturers that are not in compliance with the reporting requirements of The Mercury Thermostat Collection Act of 2008 on July 1, 2009, and on January 1 and July 1 annually thereafter.


For more information about regulatory and other requirements of this law, please contact DTSC at or contact one of DTSC's Regulatory Assistance Officers at
800-72-TOXIC (800-728-6942).

If you have knowledge of a possible violation of the Mercury Thermostat Collection Act, please use the Cal/EPA Environmental Complaint Form to file an environmental complaint with Cal/EPA. In the "Complaint Information" section, under "Complaint Related To," be sure to check the box for "Toxic Substances" to ensure the complaint is received by the Department of Toxic Substances Control. You may also call 1-800-728-6942.