National Occupation List occupation
Timber Treatment Plant Operator is occupation 712923 on the National Occupation List (NOL) V3.0, Stats NZ's New Zealand occupation classification, at NOL skill level 4. It has no ANZSCO 1.3 code of its own: Stats NZ maps it to ANZSCO 712999 Stationary Plant Operators nec.
Stats NZ describes the requirement for NOL skill level 4 as:
NZQCF Level 2 or 3 qualification, or at least one year of relevant experience may substitute for the formal qualification (NZQCF Level 2-3/NOL Skill Level 4).
A skill level describes the occupation, not you. Immigration New Zealand matches a job to the single closest occupation, and the skill level comes from that occupation; more experience does not move an occupation to a higher level.
New Zealand Certificate in Solid Wood Manufacturing (Level 3), including timber treatment strand; NZQA Unit Standard 738. Requires compliance with the Health and Safety at Work Act 2015, Hazardous Substances and New Organisms Act 1996 and Resource Management Act 1991; Best Practice Guideline for the Safe Use of Timber Preservatives & Anti-sapstain Chemicals \u2013 V1 from the New Zealand Timber Preservation Council; Approved Code of Practice for Training Operators and Instructors of Powered Industrial Lift Trucks (Worksafe); AS/NZS 1080.1:2012 Timber \u2013 Methods of test \u2013 Method 1: Moisture content. Knowledge and understanding of working with high pressure heat drying systems, and understanding the principles, practices and safety requirements of heat generation, steam and high-pressure systems.
Operates plant and machines, including kilns, to season, preserve and dry timber and wood.
Prepares, and checks strength and volume of preservative or treatment solutions and impregnates wood with preservatives and retardants.
Assesses wood feedstock characteristics, including the ratio of heartwood to sapwood, to determine appropriate treatment schedules.
Supports and actively contributes to the development of a comprehensive quality sampling plan to ensure compliance with treatment standards.
Sets and adjusts kiln schedules based on timber species, thickness, and grade requirements, utilising knowledge and understanding of wood properties, wood stability/movement, and factors affecting drying.
Loads and unloads kilns, and operates kiln to dry wood.
Monitors temperature, humidity, and airflow to ensure optimal drying conditions, and uses moisture meters and sensors to track drying progress and final moisture content.
Checks moisture levels to determine drying endpoint and adjusts equipment and schedule as appropriate, using knowledge of the properties of wood and defects, and managing the properties and characteristics of wood in the drying cycle.
Conducts chemical titrations and spot tests as part of ongoing quality control measures.
Undertakes quality control processes to ensure wood has been treated and/or dried correctly without defects such as warping or cracking, and that end product meets required specifications.
Demonstrates proficiency in spill response procedures, emergency evacuation protocols, and overall emergency preparedness, and responds promptly to alarms and emergency situations, taking necessary corrective actions.
Adheres strictly to safety guidelines and utilize appropriate personal protective equipment (PPE) at all times, and manages storage of chemicals and related materials.
Accurately logs operational data, observations, and testing results in both manual and digital systems, and maintains documentation of kiln schedules, drying, cycles and timber batches, including taking log moisture readings and drying outcomes for traceability and quality audits.
May perform routine checks and maintenance on kiln equipment, fans, vents, and control systems.
Job titles Stats NZ lists under this occupation:
Immigration New Zealand accepts only the NOL occupations on its published list, and only for an AEWV or job check. Timber Treatment Plant Operator is not on that list as at 31 October 2026, so every visa currently uses the equivalent ANZSCO occupation and its skill level. INZ's NOL list.
| Visa rule | For this occupation | More |
|---|---|---|
| Accredited Employer Work Visa: longest visa | Up to 3 years for skill level 4 and 5 roles. | AEWV guide |
| AEWV: evidence of English | Required for skill level 4 and 5 roles, with limited exemptions. | AEWV guide |
| Supporting a partner's visa | A higher wage threshold applies to skill level 4 and 5 roles, with exceptions for some care, transport and Green List roles. | Partner of a Worker |
| Skilled Migrant Category: Skilled Work Experience pathway | Not available: skill level 4 and 5 occupations are excluded. | Skilled Work Experience pathway |
Rules as published by Immigration New Zealand. Lists synced 31 October 2026. Each visa has further requirements beyond skill level, including pay and work experience.
Stats NZ links this occupation to Tahatū, the government careers website, which has more about the work in New Zealand, including pay: Furnace, kiln, oven, dryer and kettle operator .
Picking the right occupation decides the skill level, and with it the visa rules above. Talk it through with us: we will listen to your situation and match you with the right IAA-licensed adviser. You can also check your pay and work experience against the residence wage rules with our calculator.
Timber Treatment Plant Operator is occupation 712923 on Stats NZ's National Occupation List. Its ANZSCO 1.3 equivalent is 712999 Stationary Plant Operators nec.
NOL skill level 4, where 1 is the most skilled and 5 the least. NZQCF Level 2 or 3 qualification, or at least one year of relevant experience may substitute for the formal qualification (NZQCF Level 2-3/NOL Skill Level 4).
Not yet. Immigration New Zealand accepts only the NOL occupations on its published list for an AEWV or job check, and Timber Treatment Plant Operator is not on it as at 31 October 2026. Use the equivalent ANZSCO occupation code instead.
Browse the National Occupation List or the ANZSCO code list.
Sources: National Occupation List V3.0.0, Stats NZ, CC BY 4.0, synced 1 November 2026; Immigration New Zealand occupation lists, synced 31 October 2026. This page reproduces published classifications and Immigration New Zealand's lists. It is general information, not immigration advice. ProVisas is a licensed New Zealand immigration advisory firm (IAA Licence 201301110).
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