T29: carbon filtering non-hazardous pesticide washings
T29 exemption allows youfarmers, landscapers and other land managers to treat non-hazardous pesticide washings byproduced carbonduring filtrationtheir before disposing of them to land.
work.
Applies to England
There’s a charge for most waste exemptions
This exemption is in band 3. Read waste exemption charges to find out what the charges and charging bands are.
Pesticide washings treated this way are less likely to damage the environment when discharged to land, compared to untreated pesticide washings.
TypesActivities of activity you can carry out
You can use a sealed carbon filtration unit, such as a sentinel unit, to treat surplus spray and pesticide washings produced on thea farm or in landscaping orand othersimilar uses.work.
TypesActivities of activity you cannot carry out
You cannot:cannot:
-
import pesticide washings from other
placesplaces toorfarmstoinon yourplantsite
TypesConditions
You ofmust:
-
treat and store waste
youin the same place that the pesticides were used -
ensure that no pesticide washings (treated or untreated) can
treat -
Thecarrywasteoutcodestreatmentareofthosethelistedpesticide washings in a sealed carbon filtration unit with sealed drainage
Sealed drainage means the Listsystem ofhas Wastesan (LoW)impermeable Regulations.surface Youso needthat:
-
no
toliquidmakewillsurerunyouroffwastethefitssurface,withinexcept via therelevantsystem -
all liquids entering the system are collected in a sealed sump, unless they can be lawfully discharged
Types of waste codeyou can treat
Your waste must fit with the waste codes and description.description in the table.
Waste code | Type of waste |
---|---|
02 01 09 16 05 09 |
Non-hazardous pesticide washings only |
Quantity of waste you can treat
You can store or treat up to 8,000 litres of waste over any 24-hour period.period. This is the maximum amount allowed.
KeyCheck conditionsif you need an environmental permit
You must:
treatwillandneedstoretowasteapplyinfortheasamepermitplaceifthatyouthewantpesticidestoweredisposeusedcarryouttreatmentinbyadischargingsealedthemunittowithland.Read
sealedaboutdrainage
OtherRegistering thingsyour youwaste needexemption
Register toa knowT29 exemption with the Environment Agency. You can register and pay through the waste exemption service.
Registration rules
You mustcannot:
-
register
makemoresurethanthatoneduringT29treatmentatandthestorage,samenosite -
register
pesticideawashingsT29(treatediforit’suntreated)alreadycanbeengetregisteredintoatdrains,thewatercoursessiteorbyontoanotherlandbusiness -
renew
andyourcauseregistrationpollution.RelatedmoreexemptionsYouthancanonealsomonthtreatbeforedilutethepesticide3-yearwashingsregistration period ends -
store waste that’s not included in
athebiobedexemption -
deregister
oranbiofilterexemptionunderthenT32register–ittreatmentagain within 3 years ofwastetheinstartaofbiobedtheorearlierbiofilter.registration
RegisterWaste this exemption charges
YouRead needwaste exemption charges to registerfind thisout what the charges are.
T29 exemption withhas thea Environmentband Agency3 ifcompliance youcharge.
There’s meeta theregistration requirements.charge to register one or more exemptions at a time.
RelatedFarmer permits
charges
IfFarmers youpay wanta tocapped disposecharge for any number of thefarming treatedexemptions. pesticidesT29 byis dischargingincluded themin tothe land,list youof willfarming needexemptions.
Charities
If toyour applyorganisation works exclusively for ana environmentalcharitable permitpurpose. you do not have to pay waste exemption charges.
DefinitionsRelated exemptions
Hazardous T32 – treatment of waste –in seea howbiobed or biofilter allows you to classifytreat differentdilute typespesticide ofwashings waste.in a biobed or biofilter.
SealedRead drainagethe –waste aexemptions drainageguidance systemin withfull.
Contact anthe impermeableEnvironment surfaceAgency
General thatenquiries
National makesCustomer sureContact that:
noCentreliquid
POwillBoxrun544
Rotherham
S60off1BYEmail
theenquiries@environment-agency.gov.ukTelephone
surface03708apart506 506Telephone from
viaoutside thesystemexceptUKwhere(MondaytheytomayFriday,be8amlawfullytodischarged,6pmallGMT)liquids+44entering(0)the114system282are5312Monday
collectedtoinFriday,a8amsealedtosump6pm.
Updates to this page
-
1 July 2025 Updated with a link to new information about charges and charging bands for waste exemptions.
-
28 April 2014 First published.