EPA Proposes to Overhaul the Clean Air Act's Title VI Refrigerant Management Requirements
I. Background
II. Overview of the Proposed Rule
The Proposed Rule and EPA’s preamble spans one hundred pages of the Federal Register and we do not attempt here to summarize all of them. Instead, we focus on the following five more significant proposed changes to existing refrigerant management requirements:
A. Extending the existing venting prohibition and sales restrictions beyond ODS and to a broad class of non-exempt substitutes that have replaced ODCs as refrigerants, such as HFCs, perfluorocarbons (PFCs), and hydrofluoroolefins (HFOs);
B. Adding new leak detection and monitoring requirements;
C. Reducing the leak rates that trigger the regulatory requirement to repair, retrofit, or retire equipment;
D. Establishing a two-year back-stop on the maximum allowable amount of leaks from repaired systems; and
E. Introducing a new requirement to address all leaks identified during system inspections.
Each of these key provisions is briefly summarized below.
A. Extending Title VI to Non-Ozone Depleting Substitute Refrigerants
B. New Leak Detection Requirements
C. Introducing Lower Trigger Rates
D. The New Two-Year Limit For Attempted Repairs
In addition to lowering the trigger thresholds, EPA proposes a new two-year limit on chronically leaking systems.13 Specifically, EPA has proposed that, if a system containing 50 pounds or more of refrigerant leaks more than 75% of its full charge in any two consecutive 12-month periods, then the owner must retire that equipment. The 75% amount appears to stem from data collected by the California Air Resources Board which demonstrated that, in 2013, approximately 8% of reporting appliances leaked more than 75% of their full charge and were responsible for 38% of refrigerant emissions.14 EPA has requested comments on “whether it should finalize a higher or lower two-year leak limit.”15
E. New Requirement to Fix All Leaks
In a further attempt to reduce emissions from leaks, the Proposed Rule would also require the owner or operator, once the applicable leak rate threshold is exceeded, to (1) conduct a leak inspection test; and (2) repair all identified leaks and not just those leaks that are sufficient to bring the system back under the threshold.16 The leak inspections include “using a calibrated refrigerant leak detection device, a bubble test, or visual inspection for oil residue,”17 but do not need to be conducted by certified technicians and would not require “evacuating or shutting down the appliance.”18 EPA is also soliciting comments on potential variations on this requirement, including whether to exempt from the repair obligation certain leaks that are “not the result of a faulty component or connection and . . . would not be reduced from repair or adjustment.”19
III. Timing
IV. Conclusion
Owners and operators of commercial refrigeration appliances, industrial process refrigeration equipment, and comfort cooling appliances are the latest front in EPA’s comprehensive plan for reducing GHG emissions and must start to evaluate their compliance options under the Proposed Rule, especially the feasibility of meeting the new requirements designed to curb refrigerant leaks.
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Protection of Stratospheric Ozone: Update to the Refrigerant Management Requirements Under the Clean Air Act, 80 Fed. Reg. 69,458; 69,463 (Nov. 9, 2015).
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The President’s Climate Action Plan at 10 (2013) (“Hydrofluorocarbons (HFCs), which are primarily used for refrigeration and air conditioning, are potent greenhouse gases. . . . To reduce emissions of HFCs, the United States can and will lead both through international diplomacy as well as domestic actions.”), https://www.whitehouse.gov/sites/default/files/image/president27sclimateactionplan.pdf; see also Protection of Stratospheric Ozone: Change of Listing Status for Certain Substitutes Under the Significant New Alternatives Policy Program, 80 Fed. Reg. 42870 (July 20, 2015).
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Protection of Stratospheric Ozone: Update to the Refrigerant Management Requirements Under the Clean Air Act, 80 Fed. Reg. 69,458; 69,463 (Nov. 9, 2015).
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E.g., Protection of Stratospheric Ozone; Refrigerant Recycling; Substitute Refrigerants, 69 Fed. Reg. 11,946 (Mar. 12, 2004).
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Id. at 69,485. The initial verification tests are “those leak tests that are conducted as soon as practicable after the repair is completed” and follow-up verification tests are “those tests that involve checking the repairs within 30 days of the appliance’s returning to normal operating characteristics and conditions.” 40 C.F.R. § 82.152.
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