For a Northern Ireland farm, orchard, nursery or amenity business, start by identifying the equipment actually used. Record the test certificate against that machine and keep it separate from the operator's training certificate and the application's spray record. Those documents describe different parts of the job.
Who needs to arrange the equipment check?
DAERA says a person owning or leasing pesticide application equipment must ensure it is not used by a professional user unless it has passed inspection. The operator guidance also describes continuing calibration and technical checks. Keep responsibility for arranging the test explicit when a machine is leased, shared or supplied by a contractor.
Before a contracted operation, agree which machine will attend and who can supply its certificate. Use the actual equipment identifier in the booking and treatment record. If a substitute sprayer is brought to the site, check the documents for that equipment rather than filing the original machine's papers against the replacement.
If your role is the customer rather than the machine owner, request the information relevant to the agreed work and keep a clear record of what was supplied. Treat a missing machine identifier as a question for the contractor to resolve, instead of matching certificates by a familiar business name alone.
Apply the category and age schedule
DAERA gives the following general testing timetable: all new application equipment has its first test before it is five years old; thereafter, larger boom and certain other sprayers use a three-year interval, while smaller booms and listed specialist equipment use six years. The NSTS liquid-equipment page publishes the corresponding categories.
| Machine described in the guidance | Retest category after the first test |
|---|---|
| Boom over 3 m | Every 3 years |
| Air-assisted broadcast sprayer | Every 3 years |
| Train or aircraft sprayer | Every 3 years |
| Boom 3 m and under | Every 6 years |
| Weed wiper, micro-granular or seed-treatment equipment and listed specialist types | Every 6 years |
Use the original certificate and equipment evidence to establish your own due date. This table repeats the general categories, not an individual inspection decision. Ask NSTS about an unusual application system and keep the answer with the equipment file.
For an orchard or vineyard, identify whether the equipment is air-assisted broadcast rather than assuming the crop name determines the testing route. Preserve that equipment description in both the test file and the job information supplied to the operator.
Do not misclassify a trolley sprayer
NSTS's legislation guidance clarifies the distinction between pedestrian equipment and trolley application equipment. A manually propelled or self-propelled trolley with three or more wheels and a motorised pump falls within formal testing, with a first test before age five and six-year retesting. The pedestrian definition covers at most two wheels or a manually pressurised pump.
For compact amenity machinery, photograph or transcribe the identifying plate and note wheel count, pump type and application arrangement before contacting the centre. This is practical preparation for a classification discussion, rather than a substitute for the published definitions.
Do not use a shop's product description alone to classify the machine. Terms such as “portable” or “garden trolley” may leave the features relevant to NSTS's guidance unexplained. Ask the centre to address those features explicitly and retain its response.
Handheld and knapsack equipment still needs a record
DAERA says knapsack, handheld and pedestrian equipment is outside NSTS formal testing but must be inspected regularly by a competent person, repaired as required and supported by an inspection record. Its guidance describes a competent person by appropriate training, recognised certification and the knowledge, skills and experience to use the equipment safely.
Create a separate record for each item. Identify what was inspected, any fault found, the action taken and the subsequent check. Retain the inspector's identity with the date. If the applicator changes between operators, keep its equipment reference stable so its history remains traceable.
For a first inventory, label similar knapsacks distinctly in your internal system and match each to its maintenance notes. An undifferentiated page headed “knapsacks checked” gives the next person less information than a record showing which item had a damaged component and when the issue was resolved.
Keep your spray records in one place. Free to start.
Download the handheld inspection checklist
Open NSTS’s Hand-held Sprayer Routine Check List (PDF, V6.07.2025). It records the owner, operator, machine make/model and identification, inspector and inspection date. The checks have pass, fail and repair-action fields, followed by a calibration sheet. Save the completed checklist with that machine’s history. This routine record accompanies the competent-person inspection; NSTS test centres issue formal test certificates for equipment in the formal testing route.
Find a centre serving your Northern Ireland location
NSTS's official search asks for equipment type and postcode. Select the application-equipment category, enter the relevant location and contact a centre returned by the search. Confirm that it handles the machine and any specialist application arrangement.
Prepare the previous certificate, machine identity, equipment age evidence and contact person's details before booking. Ask the test centre for its preparation requirements, current charges and availability. This guide does not give a fixed fee or promise a date for a local visit.
Agree where the machine will be accessible and who can answer technical questions during the test. Keep any examiner instructions with the booking note. If repairs are already known to be required, describe them accurately so the centre can explain how they affect the visit.
Annual assurance testing is a separate question
NSTS lists annual testing requirements for specified larger-boom and air-blast machines in Crops, Fresh Produce and Scottish Quality Crops assurance arrangements, as well as annual testing for micro-granular nematicide applicators. Establish the scheme and equipment conditions applying to your own business separately from the general schedule.
In your equipment index, use distinct fields for the general category, certificate date and any assurance-driven next test. Record the basis of a reminder. This avoids a shorter contractual or assurance requirement being lost when somebody recalculates dates from the broad legal interval.
Link testing to the treatment diary
After the test, file the certificate and any follow-up information under the equipment reference. Keep repair history and calibration measurements nearby, with their own dates. DAERA's guidance explicitly requires professional users to carry out regular calibration and technical checks.
When recording an application, use the machine identifier consistently. If the job involved different equipment during the day, preserve the distinction in the operation notes. The record should let a reader identify which sprayer performed which part of the work.
For Northern Ireland treatment data and electronic-format preparation, use the digital spray records guide and DAERA workbook guide. For the operator's own qualification route, use pesticide training in Northern Ireland. Booking the test and obtaining the official certificate take place through NSTS and its test centres.
Organise evidence when machinery moves between businesses
When a sprayer arrives through purchase, hire or a contractor arrangement, match the identification plate to the paperwork supplied. Record the name of the person who can answer a document query. Keep invoices and contractual arrangements in the administrative file, with the inspection certificate separately identified.
If a replacement component or a configuration change affects the information on which a classification was based, describe it to the testing centre and ask what follows for that machine. Preserve the response. Do not treat an old certificate for a similar model as the missing document for the equipment actually present.
For a fleet working at several yards, choose one stable equipment reference and use it on appointments, workshop instructions and job records. Include the actual test location in the booking. If the examiner arrives at a different yard, an otherwise complete equipment file does not resolve the practical problem of access to the machine.
After maintenance, link the repair note and follow-up check to the item affected. Keep an earlier defect legible in the history rather than replacing it with an unexplained “all satisfactory”. This suggested archive layout lets office staff retrieve the relevant sequence without assigning them the examiner's technical role.