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.)