"Rinjizoyaku" is a collective term for the odd-job tasks that kokuga (provincial government office) obliged local farmers to perform as a kind of tax payable in labor or in kind.
臨時雑役（りんじぞうやく）とは平安時代中期に国衙から農民に身役・交易などの名目で賦課された雑役の総称。