SNAP: Change of Status RuleSNAP: Change of Status Rule--2Overview BriefingFebruary 11, 2016Scope of Briefing**U.S. Government Internal & Deliberative**2**SNAP and President’s Climate Action Plan****Overview of Next SNAP Change of Status Rule****Proposed actions and end-uses****Other proposed changes****Outreach****Discussion •** Acceptable**- those that reduce overall risk to human health & en vironment** **•**Acceptable with use restrictions**- if needed to ensure safe use •** Unacceptable**Evaluates alternatives & lists alternatives as: • Aerosols; Foams; Refrigeration and A/C; Solvents; F** **ire Suppression; Adhesives, Coatings, Inks, etc.** **Sectors include: • Ozone Depletion Potential** **• Global Warming Potential • Flammability** **• Toxicity Considers:** •**Local Air Quality**•**Ecosystem Effects**•**Occupational & Consumer Health/Safety** 3Climate Action Plan:Hydrofluorocarbons (HFCs)**U.S. Government Internal & Deliberative**4**Use and emissions of HFCs are growing rapidly becau se they are** **replacements for ozone-depleting substances (ODS) b eing phased out under** **the Montreal Protocol and there is a global expansi on of refrigeration and a/c** **Climate Action Plan: address HFCs through continuin g international and** **domestic actions****Lead negotiations under the Montreal Protocol to phas e down HFCs** **Use existing Clean Air Act authority of**Significant New Alternatives Policy (SNAP)Program**to approve climate-friendly chemicals, prohibit som e uses of most harmful** **SNAP actions since 2014:****Two SNAP notices and a final rule issued expanding a cceptable alternatives** **SNAP Change of Status Rule-1 published July 2015: HF C emissions avoided of 54-64** **MMTCO2eq in 2025**SNAP Change of Status Rule-2: Proposed changes of status estimated to avoidemissions of approx. 6-7 MMTCO2eq in 2025 and 10-12MMTCO2eq in 2030SNAP Rule Overview**USG Internal & Deliberative**5What**NPRM includes proposed listings:****Acceptable subject to use conditions****Unacceptable; and****Changes of status****Other proposed changes**Which sectors are included**Refrigeration and air conditioning****Foam blowing****Fire suppression**Acceptable List:Proposed listingswithith useuseconditionsconditionsEnd-Use (New Equipment) Alternativesto AddKey PointsRetail Food Refrigeration & Stationary AC•**Commercial ice machines**•**Water coolers**•**Very low temperature refrigeration equipment** **Propane -Much lower GWP than what is in use** **-Industry indicates better energy efficiency -Flammability can be addressed similar to other end** **uses - Propose to exempt from 608 no venting requirement** **consistent with past rules**Motor Vehicle Air Conditioning•**Medium-duty passenger vehicles** •**Heavy-duty pickup trucks**•**Complete heavy-duty vans HFO** **1234yf -HFO-1234yf already acceptable for newly-manufactur** **ed passenger cars and LD trucks** **-These vehicle types are very similar or identical t o LD vehicles** **-Does not affect use of existing credits under LD G HG program** **-Exclude incomplete HD vans since MVAC system could be** **altered by a secondary manufacturer**Fire Suppression•**Total flooding (engine nacelles and APUs on aircraft only)** •**Streaming (handheld extinguishers in aircraft only)** **2-BTP -Total flooding limited to unoccupiable space** **-Halon is still primary agent used but ICAO require s transitions** **U.S. Government Internal & Deliberative**6Unacceptable List: Proposed ListingsEnd-Use Alternative Key PointsRefrigeration and Air Conditioning**Residential and light commercial AC: unitary** **split and heat pumps (retrofit)** **Class 3 flammable refrigerants by ASHRAE standards** **-Extremely flammable and we do not have evidence showing they can be used safely in** **equipment designed for a non-flammable R-22a and similar liquified petroleum** **gases Residential and light** **commercial AC and heat pumps, commercial** **comfort AC and cold storage warehouses** **(new) Propylene and R-443A** **-High photochemical reactivity – local air quality concern** **-Toxicity concern in equipment for consumer uses** **U.S. Government Internal & Deliberative**7ProposedStatusStatus Changes:Changes:Refrigeration & Air ConditioningEnd-UsePredominantly UsedAlternatives Proposed forStatus Change*ProposedChange ofStatus DateKey Points**Centrifugal chillers** **HFC-134a January 1, 2022** **-Lower-GWP refrigerants available: e.g., HFOs,** **HFC/HFO blends, HCFO -Under phaseout of ozone-depleting substances** **(ODS), HCFC-123 will be allowed in new chillers until 1/1/2020** **Positive displacement** **chillers HFC-134a, R-407C, and R** **410A***Would change status for various HFCs and HFC refrigerant blends with GWPs ranging from about 900 to 9,810**U.S. Government Internal & Deliberative**8ProposedProposed Status Changes:Status Changes:Refrigeration & Air Conditioning (Cont.)End-UsePredominantlyUsedAlternativesProposed forStatus Change*ProposedChange ofStatus DateKey Points**Refrigerated food** **processing and dispensing** ****R-404A and R 410A** **January 1, 2021 -Lower-GWP refrigerants available: e.g.,** **HFC/HFO blend Household** **refrigerators and freezers** **R-134a January 1, 2021 -Lower-GWP refrigerants available: e.g.,** **HFC/HFO blends and HCs Cold storage** **warehouses R-404A and R** **410A January 1, 2023 -Lower-GWP refrigerants available: e** **.g., HFC blends, HFO/HFC blends, ammonia** *Would change status for various HFCs and HFC refrigerant blends with GWPs ranging from about 900 to 4,000**Separate end-use category within retail food refrigeration end-use**U.S. Government Internal & Deliberative**9Proposed Status Changes:FoamsEnd-UsePredominantly UsedAlternativesProposed for StatusChange*ProposedChange ofStatus DateKey Points**Rigid Polyurethane** **(PU) spray foam** **One component** **foam sealants HFC-134a, HFC-245fa** **January 1, 2020 -Lower GWP alternatives available that are** **both flammable (e.g., ecomateTM) and non flammable (e.g., HFO-1234ze(E))** **-Since July rule, several companies have announced transitions for high-pressure** **foam and one company for low-pressure -Proposal allows more time for low** **pressure to overcome technical challenges High** **pressure two component** **January 1, 2020** ****Low- pressure** **two component** **January 1, 2021** ****Flexible PU Methylene chloride 30 days after** **publication -Due to its relatively high toxicity** **-Hazardous Air Pollutant regulations prohibit use in flexible PU foam** **manufacturing facilities for major sources -Change of status dates for integral skin and** **polyolefin aligned with dates in July rule Integral skin PU Methylene chloride January 1, 2017** **Polyolefin Methylene chloride January 1, 2020***Would change status for various HFCs and HFC blends with GWPs about 740-1,430**Narrowed use limit for military/space/aeronauticsuntil January 1, 2022**U.S. Government Internal & D**10End-UseAlternativeProposedChange ofStatus DateKey Points**Total Flooding PFCs (C 3** **F 8** **and C 4** **F 10** **) One year after** **publication -Based on high-GWP (8,830-8,860) and long** **atmospheric lifetimes (2,600 years) -Not aware of any current uses** **-Range of acceptable alternatives**Requesting commentonlySF6, HFC-23, HFC-125,and HFC-227eaNo change proposed-Requesting advance comments and updated informationin order to consider potential future actionProposed StatusProposed Status Changes:Changes:Fire Suppression**U.S. Government Internal & Deliberative**11Other Proposed Changes**USG Internal & Deliberative**12**Closed cell foam products****The unacceptability determination of foam blowing a gents** **would apply to use of closed cell foam products and products** **that contain closed cell foam where the products ar e** **manufactured on or after the change of status date****Fire suppression****Clean up one listing to match actions taken by Noti ce that** **broadened the acceptability listing from only unocc upied spaces** **to include occupied spaces**Outreach**USG Internal & Deliberative**13•**Ongoing individual meetings with industry and ENGOs**•**Workshops/Conferences:**•**SNAP sector workshops**•**Heavy-duty MVAC (November 2015)**•**Fire suppression (December 2015)**•**Food Cold Chain in Montreal (November 2015)**•**ASHRAE (January 2016)**•**360 Refrigerant Forum (February 2016)**•**Mobile Air Conditioning Society (February 2016)**•**Spray Foam (February 2016)**Discussion**USG Internal & Deliberative**14