People credited with this unit standard are able to: interpret NZS 3640 requirements correctly; explain requirements for the identification of treated timber products; describe hazard class treatment and sampling requirements and approved preservatives; demonstrate familiarity with the company quality system and related documentation requirements; reference and explain product specification requirements; reference and explain worksite quality system plant and equipment requirements; match the NZS 3640 and worksite quality system against workplace applications; and demonstrate knowledge of compliance with worksite health and safety requirements.