二級工人的主要職責為： (a) 自然護理分署和郊野公園及海岸公園分署：(i) 與建造和維修行人徑、康樂地區及設施有關的體力勞動工作；(ii) 植樹和植林、保養樹木和植林區、剪草；(iii) 撲滅山火；(iv) 栽種植物及收集種子；以及(v) 收集及處理垃圾。 (b) 檢驗及檢疫分署：(i) 飼養禽畜的日常工作；(ii) 處理及約束動物，以進行防疫注射、健康檢查及餵藥等；(iii) 政府樓宇、動物管理中心、動物停放站及車輛的一般保養及清潔工作；以及(iv) 與執法行動有關的體力勞動工作。 (c) 行政科：(i) 辦公室的一般清潔及體力勞動工作；以及(ii) 收集及運送文件、檔案，以及搬移辦公室家具等。 (註： 須在交通不便的偏遠地區工作；穿著制服；不定時工作及／或輪班工作；以及在惡劣天氣、颱風襲港或在發生緊急山火時工作。)

A Workman II is mainly deployed on – (a) Conservation Branch and Country and Marine Parks Branch : (i) manual work associated with construction and maintenance of footpaths as well as recreational areas and facilities; (ii) planting and maintenance of trees and plantations as well as grass cutting; (iii) hill fire fighting; (iv) plant propagation and seed collection; and (v) litter collection and disposal. (b) Inspection and Quarantine Branch : (i) routine work in livestock rearing; (ii) handling and restraining of animals for inoculation, health check, administration of drugs, etc.; (iii) general maintenance and cleansing of Government premises, animal management centres, animal depots and vehicles; and (iv) manual work associated with law enforcement activities. (c) Administration Division : (i) general cleansing and manual work of the office; and (ii) collection and delivery of documents, files, office furniture, etc. (Note : May be required to work in remote areas with difficult access, wear uniform, work irregular hours and/or perform shift duties, and perform duties during inclement weather / typhoon / emergency hill fire.)