How do I put a unit into Long Term Cold Storage?


An operating status of Long Term Cold Storage (LTCS) has been added under 40 CFR 75.61(a)(7).

LTCS means that a unit has been completely shut down and placed into storage, and that the shutdown is intended to last for an extended period of time (i.e., at least two calendar years).

Affected units placed into Long Term Cold Storage by a Designated Representative may discontinue the submittal of quarterly reports during the period of time in which they remain in Long Term Cold Storage.

If the units are brought back online, notice must be given under 75.61(a)(7)(ii), and fully compliant monitoring plans and all new tests for the monitoring systems are required.

If you would like to place any units into Long Term Cold Storage, please read section 75.61. The Designated Representative should then send an email to, and provide the facility name, facility ID and the unit ID(s) of the units to be placed into Long Term Cold Storage.  A phone number should also be included in the email in case there are any questions.

CAMD will update the operating status of the units being placed into LTCS in the CAMD database, and an email will be sent to the Designated Representative(s) confirming the update.

If you have any questions, please send an email to


Tags: LTCS, operating status, programs

Last update: 2022-06-15 14:30