Doc k et N umb er EPA

- HQ-OPP-2014

- 0670 www.regu latio n s.gov



# 1-Methylcyclopr op ene (1-MCP) P C C ode: 22 4 459 

## Registration Review Final Work Plan

A pprove d b y:

D a t e: 

## Marc h 2 01 6 Case 6 0 75

Rob e rt McNally, Dir ector Biope s ti ci d es an d P ollution Pre vent ion DivisionINTRODUCTION This is the Environmental Protectio n Agency 's (EPA or the Agency) Final Work Plan (FWP) for the registration review of 1-me thylcyclopropene (1-MCP). This work plan addresses publi c comments received concerning the Preliminary Work Plan ( PWP) , which was posted in the 1- MCP registration review docket (EPA-HQ-OPP-2014-0670). 1-MCP is currently registered for u se as a post-harvest tool for counteracting the unde s irable effects of ethylene on harvested fruits, vegetab les, a nd ornamental (such as cut flowers) during transport and s torag e, and for preh arvest use on grow in g crops and ornamentals. The Age ncy i s implemen ting the registration review program pursuant to Section 3(g) of the Federal In sect icide , Fungicide, and Rodenticide Act ( FIFRA) , and will review each registered pesticide every 15 years to determine whether it continues to meet the FIFRA s tandard for registration. Changes in science, public polic y, and pesticide use practices occur over time. The reg istration review pro g ram is intended to make sure that, as the ability to assess risk evolves and as policies and practices change , all registered pesticides continue to meet the s tatutory standard. The public phase of registration re v iew begins when the initial docket is opened for each case. Information on this program is provided on the Agency's website. 1 The FWP begins with any update s s ince the PWP was i ssued. Next is a summary of substantive comments rec e ived during the public comment period for the PWP concerning anticipated data needs , expec ted risk assessments , or the es timated timeline identified in the PWP , and a summary of the Agency's responses to those comments. This section i s followed by registration review planned data needs, risk assessments expected to be conducted , and the proj ec ted reg i stra tion review timeline for 1-MCP. Lastly, there is a discussion of next steps. UPDATES SINCE THE PWP WAS ISSUED There are no additional updat es on 1-MCP since th e i ssu anc e of the PWP. SUMMARY OF COMMENTS AND AGENCY RESPONSES During the 60-day public comment period on the 1-MCP PWP , which opened on Octob er 2 , 20 15 , and closed on D ece mb er 1 , 2015 , the Agency r ece iv e d one comment concerning this case. Thi s sole comment was submitted by Laura Grunenfelder , Northwest Horticultural Council , in s upport of the continued registration of 1-MCP as a "critical tool for the tree fruit industry. " PLANNED DATA NEEDS The planned data needs have not changed from what was included in the 1-MCP PWP.

1http :// www . epa. gov/ oppsnd I/ registration review/ 2RISK ASSESS MENTS FOR REGISTRATION REVI E W As stated in the P WP, no data gaps (ant ic i pated data needs) for 1- MCP h ave been identified. The most recent comprehens ive risk assessment for 1 -MCP was completed February 21, 2001, in support of a request to establish an exemption from the requirement of a tol erance for resid ues of 1-MCP on all food commodi ti es. Because the re are no data gaps for 1-MCP or anticipated data needs , and no additi o n a l information has been received on this b ioc hemica l s ince th i s most r ecent risk assessment, the Agency does not anticipate the need to con duct a new risk assessme n t during registration review. TIMELINE EPA ha s created the fo ll ow in g estimated timeline for the comp letion of the 1-MCP registration review in Table 1 , below. This projected timeline has not changed s inc e t h e PWP. Table 1 : Registration Review for 1

- Methy lcyclop ropene ( 1 -MC P )

- Projected Registration Re v iew Timeline Activities Estimated MonthlY ear Openin2 the Docket Open D ocket an d 60 -D ay Public Comment Period October 2015 Close Public Comme n t Period D ecember 20 15 Case Deve l opment I ss ue Fi nal Work Plan March 20 16 I ssue D ata Call-in N / A Data Subm i ssion N/ A Open 30 -D ay Pu blic Comment P eriod for Draft Ri sk Assessments N/ A Close Public Comment Pe riod NIA Registration Review Decision Open 60-Day Public Comment Period for Proposed Registration Review September 2016 Decision Close Public Comme nt Period Novembe r 2016 Final Decision March 20 1 7 *Estimated Total (years) 1 year and 5 months 

### * This schedule is s ubj ect to revis ion s hould unforeseen issues arise dunng the r eg ts trahon revtew process. In th e eve nt an issue ar i ses , such as the fai lure to acqu ir e an EDSP exemption , an am e nd e d Fina l Work Plan wi ll be i ss u ed at that time that will se t forth a new t ime lin e and , if appl icable , any new data requirements will be included in the amended document and a D ata Ca ll-In Notice w i ll be issued.

3NEXT STEPS T he Age ncy pl ans to iss ue a Pro p osed Reg i strat io n R ev iew D ec i s io n fo r thi s case in Septem ber, 2 01 6
. At that tim e, a 60 -d ay publi c c omme nt peri o d w ill b e op en e d to acce p t co mm e nt s on the Propose d Dec i sion.

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