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The Applicant Guide: Guidance

The Applicant Guide explains how to submit an application to HSE, how we process the application, what should be included and what happens once the application is completed.

In addition to the Guide, guidance to address different aspects of plant protection product (PPP) and adjuvant registration is available. Links to these documents can be found in the appropriate places in The Applicant Guide but a list of these documents is detailed below.

The Applicant Guide associated Guidance

Active substance approval – The decision- making process

New active substance applications – optional phased submission process

Additional data and data mid-evaluation


Adverse data - Approval Holder Responsibilities

Application fees

Application overview

Applications for addition of undersown crops to product labels

Application types

Application - what to include


Classification and labelling requirement on authorisations

Commercial withdrawals

Comparative Assessment

Consideration of study protocols

Data submission deadlines

Emergency (120 day) authorisations

Experimental permits/approvals

Extensions of use Contents

Garden pesticides: guidance on Pack size limits

Import tolerances and Maximum Residue Levels (MRLs)

Letters of access

Notice of Authorisation structure

Northern Ireland only Parallel Trade Permit Procedure

Permits for trials purposes

Procedures for submission and assessment of confirmatory data following inclusion of an active substance in Annex I of Council Directive 91/414/EEC

Protection of data

Product registration numbers

Reduced water volume: operator and efficacy/crops safety risk assessments

Renewal of product authorisations

Withdrawal of Authorisations (Previously revocations of approvals)

Streams and targets


Technical specifications and formulation details

Implications of active substance renewal for ongoing applications, new applications and existing authorised products (transitional arrangements during the frozen period)

Trials Permits (previously experimental approvals)

Two-stage applications

Authorisation under Article 40 of Regulation 1107/2009 (NI)

If you have any comments or questions on The Applicant Guide or the associated guidance, please contact us at Applicant Enquiries.

Further information


Updated 2021-04-27