Home › Industry areas › Hazardous substances › Chemical reassessment programme ›

Completed reassessments

This page has information about the chemical approvals we have reassessed. Older reassessments are grouped by year, and listed alphabetically.

Recently completed reassessments

Methyl bromide

This modified reassessment reviewed the recapture requirements for the methyl bromide, a fumigant used on products such as logs and fresh produce for export.

The reassessment focused on recapture requirements, and a comprehensive suite of controls to mitigate the risks of methyl bromide use. The decision also bans the use of methyl bromide in ship holds from January 2023. As a modified reassessment, banning methyl bromide was out of scope of this reassessment.

Rules for methyl bromide

Reassessment decision: Approved with controls (PDF, 828KB)
Decision date: 11 August 2021

Chemical Review 2020

This reassessment is reviewing the hazard classifications of 123 substances, including single chemicals, and mixtures containing these chemicals, taking into account new information such as study data, reviews, and assessments by overseas chemical regulators.

Reassessment decision: Approved with controls (PDF, 1MB)
Decision date: May 2021

Chemical Review 2015

This reassessment is reviewing the hazard classifications of 79 substances, including single chemicals, and mixtures containing these chemicals, taking into account new information such as study data, reviews, and assessments by overseas chemical regulators.

Reassessment decision: Approved with controls (PDF, 912KB)
Decision date: July 2020

BACs

This modified reassessment looked at the hazard classifications assigned to a number benzyl alkonium chlorides substances.

The reassessment resulted in changes to the hazard classifications of the substances, more accurate labelling, and the introduction of environmental hazard classifications for some BACs, which were not previously in place.

Reassessment decision: Approved with controls (PDF, 1.05MB)
Decision date: May 2020

Paraquat

Paraquat is a herbicide used to control a large variety of broadleaf weeds, and annual and perennial grasses, in a variety of crops. It is currently used in commercial agriculture, forestry, and has reported use in urban weed control. Paraquat is also used as a pre-harvest desiccant.

This was a full reassessment that looked at the approvals for paraquat itself, and substances containing paraquat. In 2017, we declined an application for a herbicide containing paraquat due to its unacceptable risks to human health and the environment. This information was used to establish grounds for this reassessment application, which proceeded on to this reassessment.

After considering all relevant information available, including submissions from the public and presentations at a hearing, the Decision-making Committee decided to revoke a number of approvals and strengthen the controls on others.

Reassessment decision: Partially approved with controls (PDF, 1.5MB)
Decision date: December 2019

Rules for paraquat use

Meteor

Meteor contains the active ingredient metamitron and is used as a plant growth regulator for thinning apples.

AgriNova New Zealand Ltd applied to reduce the restricted entry interval (the time required before workers can re-enter the field after spraying). The applicant was willing to reduce the maximum application rate in order to re-examine the appropriate restricted entry interval. New information about the properties of the substance was also provided.

Reassessment decision: Approved with controls (PDF, 806KB)
Decision date: August 2019

Moddus Evo

Moddus Evo is used as a plant growth regulator for what, barley, ryegrass and oat crops. It contains the active ingredient trinexapac-ethyl.

This reassessment looked at an application to amend the maximum application limit, both application rate and number of applications.

Reassessment decision: Approved with controls (PDF, 812KB)
Decision date: July 2019

Sprinter 700DS and monomethylamine

This was a modified reassessment that only looked at the reproductive/developmental hazard classification of these substances. Both substances contain monomethylamine.

Reassessment decision: Approved with controls (PDF, 930KB)
Decision date: June 2019

Exirel

Exirel contains Cyantraniliprole and is used as an insecticide on fodder brassicas such as turnips, swede and kale.

FMC New Zealand Ltd applied to change some of the controls imposed in the original approval for Exirel, to include allowing for helicopter-aerial application; and to changes to buffer zones and labelling statements.

Reassessment decision: Approved with controls (PDF, 859KB) 
Decision date: April 2019

Reassessment decisions 2015-2018 Plus
Chemical/product name and common use Reason for reassessment  Decision and date
Callisto  

A herbicide for control of broadleaf weeds		 Extend the use of Callisto from maize to turf, and increase its application rate.

The change of use was granted with additional controls, including wearing more personal protective equipment, and measures to reduce spray drift.

Applicant: Syngenta Crop Protection Limited		 Approved with controls (PDF, 604KB)

April 2016  
Carbaryl, chlorpyriphos and diazinon
 
Used in veterinary medicine and other non-plant protection purposes		 Combined reassessment of carbaryl, chlorpyrifos and diazinon because of human and environmental safety concerns from being used for veterinary medicines and insect sprays.

Approval of carbaryl for veterinary use, but revoked for controlling insects. Approvals for chlorpyrifos and diazinon were revoked.

Applicant: EPA		 Partially approved with controls (PDF, 606KB)

January 2016
Chemical Review 2012-2014 A review of a range of hazardous substance approvals for which new information was obtained in 2012-2014.

The classification and controls of 200 substances was updated.

Applicant: EPA		 Approved with controls (PDF, 718KB)

July 2016
Chlorothalonil-containing home garden fungicides

Yates Bravo, Yates Greenguard, Yates Guardall, McGregor’s Black Spot and Fungus Spray, Watkins Fungus and Mildew Spray, Tui Disease Eliminator (ready to use)

 Reassessment of five chlorothalonil-containing formulations used as fungicides for home gardening because of concerns to human health.

Four substances were revoked with a six-month notice; one substance was restricted to professional use and its classification and controls updated.

Applicant: EPA		 Partially approved with controls (PDF, 608KB)

April 2017
Dichlorvos

An organophosate insecticide used to control insect pests in agricultural, horticultural, biosecurity and public health industries, and in the home 		 To reassess dichlorvos and dichlorvos-containing substances because of concerns for human health and the environment.

Two approvals were banned, one was retained and three had stricter controls on use.

Applicant: EPA		 Partially approved with controls (PDF, 1MB)

September 2015
DuPont Exirel Insecticide

An insecticide containing cyantraniliprole and used on brassicas 		 To extend the use of DuPont Exirel Insecticide to aerial application.
Exirel is an insecticide containing cyantraniliprole and is used on brassicas.

The aerial application of Exirel was not approved due negligible benefits, risks to aquatic life and uncertainty about the effectiveness of buffer zones in hilly terrain.

Applicant: DuPont (New Zealand) Limited		 Declined (PDF, 482KB)

September 2016
Firebird

An agricultural herbicide containing flufenacet and diflufenican to control grass and broadleaf weeds		 To increase the maximum application rate of Firebird to 0.7 L per hectare for better efficacy on weeds.

The maximum application rate was increased to 0.5 L of Firebird per hectare and additional controls, including buffer zones to protect water bodies and non-target plants, were implemented.

Applicant: Bayer New Zealand Limited  		 Approved with controls (PDF, 612KB) 

May 2016
Luna Privilege containing fluopyram and Luna Sensation containing flupyram and trifloxystrobin To increase the maximum application rate and number of applications, and reduce the interval between applications for Luna Privilege and Luna Sensation for use on new crops.

The changes were granted to Luna Privilege with the addition of a restricted entry interval to protect workers.

For Luna Sensation, there are additional controls: restricting wind speed during application and buffer zones to reduce spray drift, label warnings for beneficial insects, and a restricted entry interval to protect workers.

Applicant: Bayer New Zealand Limited		 Approved with controls (PDF, 700KB)

November 2018
Organophosphate and carbamate plant protection insecticides containing acephate, dimethoate, methamidophos, methomyl and oxamyl

Insecticides used to protect commercial crops.		 To review and implement non-contact periods for certain organophosphate or carbamate plant protection substances, to protect bees and other insect pollinators against adverse effects arising from post-application exposure to the insecticides.

Most non-contact periods were implemented but specific crop-based exemptions to some active ingredients were put in place to manage the economic risks. The new requirements had a phase-in period which ended on 1 July 2016.

Applicant: EPA		 Approved with controls (PDF, 679KB)

August 2015
PredaSTOP for stoats

Poison containing para-aminopropiophenone (PAPP) to control stoats 		 To make it a condition that when using PredaSTOP baits for stoats they must be laid in a stoat-specific bait station and remove the current control that requires users to notify landowners within 3 km of a control operation using this product.

The notification to landowners was removed.

Applicant: Connovation Ltd		 Approved with controls (PDF, 1.4MB)

July 2015

 
Reassessment decisions 2011-2014 Plus
Chemical/product name and common use Reassessment purpose Reassessment decision and date
Aerosol Group Standard amendment An amendment to a group standard to adjust the site and storage requirements for aerosols.

The reassessment provided alternative measures to manage the risks associated with storing bulk aerosols.

Applicant: EPA		 Approved (PDF, 200KB)

September 2013
Ambush

An insecticide containing pirimiphos-methyl and permethrin used on a variety of horticultural crops including fodder crops, citrus, and avocados.
An application for a reassessment t change the flammability classification of Ambush.

The classification was downgraded from 3.1C (medium hazard) to 3.1D (low hazard).

Applicant: Orion Crop Protection Limited		 Approved with controls (PDF, 368KB)

December 2014
Antifouling paints 

Antifouling paints used to stop aquatic life growing on submerged surfaces, especially those of seagoing vessels.

Antifouling paints containing any of the following: 3(2H)-isothiazolone, 4,5-dichloro-2-octyl- (DCOIT), chlorothalonil, copper (I) oxide, copper pyrithione, copper thiocyanate, dichlofluanid, diuron, irgarol 1051, mancozeb, octhilinone, thiram, tolyfluanid, zinc pyrithione, zineb, ziram.
 A review of the environmental and human health effects of antifouling paints in light of regulatory action taken overseas.

The reassessment increased restrictions on antifouling paints, and the phasing out of particularly harmful substances which contain diuron, octhilinone, ziram, thiram, tolyfluanid, chlorothalonil, mancozeb, and irgarol 1051, before 2023.

Applicant: EPA		 Partially approved with controls (PDF, 976KB)

June 2013
Aquatic herbicides

Herbicides used for killing weeds
 An application for a reassessment to use over water to control aquatic pest plants.

It was decided could be applied over water with additional measures in place including exposure limits, application restrictions, qualification requirements, and application being restricted to only those who have obtained permission.

Applicant: Agrichemical Reassessment group (ARG)		 Approved with controls (PDF, 1.3MB)

December 2012
Chemical Review 2011


 A review of a range of hazardous substance approvals for which new information was obtained in 2011.

The classification and controls of 61 substances was updated.

Applicant: EPA		 Approved with controls (PDF, 844KB)

August 2012
DDVP Insecticide strips

A strip of inert polymer impregnated with dichlorvos, used in the Ministry of Primary Industries’ fruit fly surveillance programme. 		An application for a reassessment to broaden the scope of the approval to cover alternative brands of strips, and use the strips in any biosecurity programme.

Restrictions applied to the substance were amended to accommodate alternative strip brands and their use in biosecurity programmes.

Applicant: Ministry of Primary Industries		 Approved with controls (PDF, 449KB) 

December 2014
Organophosphate and carbamate plant protection insecticides 

Insecticides used to protect commercial crops.

Acephate, benomyl, carbaryl, carbofuran, carbosulfan, chlorpyrifos, chlorpyrifos-methyl, diazinon, dichlorvos, dichlofenthion, dimethoate, ethion, famphur, fenamiphos, fenitrothion, isazofos, maldison (malathion), methamidophos, methomyl, omethoate, oxamyl, phorate, phoxim, pirimicarb, pirimiphos-methyl, prothiofos, pyrazophos and terbufos.

A review of acute and chronic effects of organophosphate and carbamate insecticides on human health, including the nervous system. The substances are toxic to the aquatic environment, terrestrial invertebrates, and birds.

The reassessment increased restrictions on organophosphates and carbamates, and the phased out particularly harmful substances which contain diazinon, fenamiphos, methamidophos, prothiofos, terbufos, fenitrothion, or phorate, before 2028.

Applicant: EPA

Partially approved with controls (PDF, 1.5MB)

June 2013
Quintozene

A fungicide used to treat recreational turf, ornamental and vegetable seedlings (or soil), and flower bulbs prior to or shortly after planting.		 It was decided to revoke the approval for quintozene due to the toxicological significance of dioxin contamination.

The substance was phased out over six months.

Applicant: EPA		 Declined (PDF, 226KB)

May 2011
Seguris Flexi

A fungicide containing isopyrazam used to control foliar diseases in wheat and barley.		 An application for a reassessment to allow use at higher application rates and include use on additional crops.

It was decided to increase the maximum application rate and apply measures including minimum intervals between applications and limits to number of applications per season.

Applicant: Syngenta Crop Protection Limited		 Approved with controls (PDF, 525KB)

July 2012
Taskforce

A herbicide containing flupropanate used to manage Chilean needle grass and other pest weeds.  		 An application to allow Taskforce to be applied aerially, and be applied to kangaroo grass.

It was decided that Taskforce was allowed to be applied to kangaroo grass, and aerial application was allowable once every five years.

Applicant: Marlborough District Council		 Approved with controls (PDF, 379KB)

June 2012
Trichlorfon and its formulations

An insecticide used in plant protection products and veterinary medicines		 A review of the potential adverse effects on the human nervous system and toxic effects on the aquatic environment.

Approvals for plant protection products containing trichlorfon were revoked, and veterinary medicine uses were allowed with additional restrictions.

Applicant: EPA		 Partially approved with controls (PDF, 516KB)

February 2011
Tri-form

A soil fumigant containing 1,3-dichloropropene and chloropicrin
 An application for a reassessment to lower the minimum soil temperature required at the time of application when plastic covering is used on the treated soil.

It was decided that the minimum temperature required at the time of application when plastic covering is used on the treated soil would be lowered from 10 °C to 5 °C.

Applicant: TRICAL Inc.		 Approved with controls (PDF, 168KB)

December 2012
Reassessment decisions 2007-2010 Plus
Chemical/product name and common use Reassessment purpose Reassessment decision and date
1080

A poison containing sodium fluoroacetate to control possums, wallabies, rabbits, stoats and rodents.		 An application to continue to use 1080.

The use of 1080 was retained with tight controls detailing prior permission from the EPA, strict signage requirements, strict licensing for handlers, sufficient public notification in areas of proposed use, maximum application rates, bait colour specifications, restriction on use in a catchment area from which water is drawn for human consumption, requirement for GPS tracking for aircraft, and that detailed reports must be made to EPA as soon as reasonably practicable.

The decision identified risks, mainly to non-target species, but identified significantly higher conservational benefits. The decision also noted a lack of practical alternatives available, and the large amount of input from the public during the application process.

Applicant: Animal Health Board and Department of Conservation		 Approved with controls  (PDF, 1MB)

August 2007
Azinphos-methyl

Organophosphate insecticide for use on potatoes and summer fruit.		 A full reassessment of the broad-spectrum insecticide azinphos-methyl and its formulations. 

All 4 approvals considered in the reassessment were declined (revoked). One approval was allowed to be used with stricter controls until 2014.

Applicant: EPA		 Partially approved with controls (PDF, 439KB)

November 2009
Chemical Review 2009

A review of a range of hazardous substance approvals for which new information was obtained in 2009.

The classification and controls of 80 substances was updated.

Applicant: EPA

 Approved with controls (PDF, 569KB)

June 2010 
Chlorpropham

Residual herbicide and potato sprout suppressant.		 Modify the approval for chlorpropham to allow its use as a pesticide, especially to suppress sprout formation on potatoes during storage. It was previously only approved for research and development, and manufacture.

Pesticide use was approved with controls such as maximum application rate, restriction to the proposed use, and re-entry interval.

Applicant: Renovo Technologies Limited		 Approved with controls (PDF, 290KB)

February 2010
Clopyralid

A herbicide for control of broad-leaved weeds in a range of crops.

 A full reassessment of substances containing clopyralid.

One approval for household use was revoked. The other approvals were kept, with additional controls such as better labelling, tracking and approved handler requirements.

Applicant: New Zealand Business Council for Sustainable Development.		 Partially approved with controls (PDF, 435KB) 

August 2007
Distance Ant Bait and Engage Ant Bait


Ant baits containing the active ingredients pyriproxyfen and s-methoprene respectively.		 To modify the ground-based dispersal control to allow aerial application of the baits.

The modification was approved with controls such as requiring permission from EPA before aerial use.

Applicant: Ministry of Agriculture and Forestry Biosecurity New Zealand		 Approved with controls  (PDF, 207KB) 

November 2007
DuPont Coragen Insecticide 

An insecticide containing chlorantraniliprole for use in various crops.		 To allow its application at rates above the current maximum application rate.

The modification was approved with controls to mitigate exposure.

Applicant: DuPont (New Zealand) Limited.		 Approved with controls (PDF, 604KB)

November 2010
DuPont Altacor Insecticide

An insecticide containing chlorantraniliprole for use in various crops.		 To allow its application at rates above the current maximum application rate.

The modification was approved with controls to mitigate exposure.

Applicant: DuPont (New Zealand) Limited.		 Approved with controls (PDF, 581KB)

November 2010
Endosulfan

Insecticide used on various crops and turf.		 A full reassessment of endosulfan and its formulations.
Significant risks to human health were identified for some uses and risks to non-target organisms in the environment were identified for all uses.

The approval for endosulfan was revoked.

Applicant: EPA		 Declined (DOC, 561KB)

December 2008
Ethaneperoxoic acid


A fungicide used on grapevines to control diseases such as botrytis.		 To modify the approval for ethaneperoxoic acid, <5% in acetic acid and hydrogen peroxide.

The change was approved with controls such as maximum application rate and prohibition on aerial application and use in water.

Applicant: Jaegar Australia Pty Ltd		 Approved with controls (PDF, 314KB) 

August 2009
Explosives A modified reassessment of certain explosives.

A control was added requiring people in possession of certain explosives to hold a controlled substances licence. Only a firearms licence was required for certain low hazard classes.

Applicant: EPA		 Approved with controls  (PDF, 324KB)

June 2009
Hydrogen cyanamide

A plant growth regulator used to break buds in kiwifruit.		 A reassessment of the soluble concentrates containing hydrogen cyanamide (520-540 g/litre).

The use of hydrogen cyanamide was retained with additional controls such as better labelling. A recommendation to increase public awareness of spraying was also made.

Applicant: EPA		 Approved with controls (DOC, 558KB)

August 2006
LPG A modified reassessment of LPG, propane, and butane

Additional controls were imposed including compulsory odourisation if used without a robust leak-detection system, increased signage, tighter requirements for operators regarding filling and transport and, to ensure certain uses align with national standards.

Applicant: EPA		 Approved with controls (PDF, 345KB)

September 2010
Methylarsenic acid

Herbicide used in turf.		 To reassess methylarsinic acid and its formulations.

All approvals were revoked due to concerns over persistence and accumulation of arsenic in the environment, leading to potential risk to birds and soil health as well as people.

Applicant: EPA		 Declined (DOC, 583KB)

May 2009
Methylated spirits To reassess methylated spirits (ethanol denatured with between 0.1% and 2% methanol).

Sale to the public of ethanol denatured with methanol was prohibited due to evidence of intentional misuse.

Applicant: EPA		 Approved with controls (DOC, 132KB) 

January 2007
Methyl bromide

A fumigant pesticide used in quarantine and for export products, especially logs.		 A full reassessment of methyl bromide and its formulations.

Use of methyl bromide for quarantine and pre-export was retained but with additional controls including strengthening the tolerable exposure limits, requirements around air quality monitoring and reporting, buffer zones, and a requirement that all methyl bromide fumigations to be subject to recapture within a 10-year period. Use as a soil fumigant was revoked.

Applicant: EPA		 Partially approved with controls (PDF, 716KB)

November 2010
Methyl parathion

Organophosphate insecticide for use on crops.		 A full reassessment of methyl-parathion and its formulations.

Existing approvals were revoked based on large concerns over toxicity to humans as well as non-target organisms in the environment.

Applicant: EPA		 Declined (DOC, 491KB)

December 2008
Oberon 


An insecticide containing spiromesifen		 To remove the use restriction control and allow to be used in field crops.

The use in field crops was approved with controls including a maximum application rate and prohibition on aerial application and use in water.

Applicant: Bayer New Zealand Ltd		 Approved with controls (PDF, 292KB)

November 2010
Pentachlorophenol (PCP)

An organochlorine fungicide/insecticide used for timber preservation and textile treatment.		 A full reassessment of pentachlorophenol and its sodium salt.

All approvals were revoked. High risks to human health for working with processed timber, and concerns persistence and ecotoxity were found. It was noted that better alternatives were available and already being used.

Applicant: EPA		 Declined (DOC, 200KB)

July 2008
Petrol To modify the controls so that petrol may be handled by a person who is not an approved handler if the petrol is stored and used at a farm of more than 4 hectares, and the quantity of petrol stored is less than 2,000 litres.

Approved with the condition that the person be trained in the hazards associated with petrol and its safe use and handling, including steps to be taken in the event of spillage or other emergency.

Applicant: EPA		 Approved with controls (DOC, 151KB)

May 2007
Petrol/ethanol blends To allow petrol/ethanol blends to be stored in existing tanks without secondary containment in certain situations.

Approved and brought the requirements more in line with those for straight petrol. Additional controls were imposed such as ensuring a successful tank integrity test or a record of two year successful stock reconciliation.

Applicant: Energy Efficiency and Conservation Authority.		 Approved with controls (DOC, 375KB)

May 2007
Sumi-alpha 

Insecticide containing esfenvalerate for use on various crops		 An application for a reassessment of the approval for to add a flammability classification based on new information on the substance.

The change in classification was approved

Applicant: Nufarm Limited		 Approved with controls  (PDF, 403KB)

March 2010
Vertebrate toxic agents The addition of a new control requiring manufacturers or importers to notify to the EPA of formulation changes.

This change was approved.

Applicant: EPA		 Approved with controls (DOC, 110KB) 

June 2008
Print
Related content

How to apply for a reassessment or amendment

This page outlines the process for applying for a reassessment or amendment.

Need more information?

If you have a question please contact us.

Database search

Search our databases for previous applications or the controls that apply to a substance.