助理外勤統計主任主要負責– (a) 向統計調查及人口普查的受訪者收集統計資料； (b) 解答有關統計調查的查詢，並就提供資料作統計調查及人口普查的事宜向受訪者提供協助； (c) 保存各統計區的設計圖、記錄及地圖，並按最新情況修訂資料； (d) 協助訓練兼職統計員及分配有關統計調查及人口普查的統計工作；以及 (e) 協助督導兼職統計員。 （註：職位持有人可能須要不定時工作及／或執行大量訪問職務。）

Assistant Census and Survey Officers are mainly deployed on – (a) collecting statistical information from respondents of surveys and censuses; (b) answering enquiries on survey matters and providing assistance to respondents in connection with the supply of information for surveys and censuses; (c) updating and maintaining plans, records and maps of survey areas; (d) assisting in the training of temporary field officers and allocation of assignments in connection with surveys and censuses; and (e) assisting in the supervision of temporary field officers. (Note : The post-holder may be required to work irregular hours and/or to undertake a substantial amount of interviewing duties.)