The 37.5% Arable Rent Reduction Act Article 11

(Reduction due to failure of crops)When there is a failure of crops of the farm land due to calamities or force majeure, the lessee may request the Farm Land Tenancy Committee of the Village (Township, City, District) Office to investigate and survey the degree of failure of crops, and decide after deliberation the measures for rent reduction. The Farm Land Tenancy Committee of the Village (Township, City, District) Office shall deal with the matters within three days of the request, or, if necessary, report to the Farm Land Tenancy Committee of the Municipal or County (City) Government for re-survey and to make decision.If the failure of crops, as referred to in the preceding paragraph, is a common occurrence in the locality, the Farm Land Tenancy Committee of the Village (Township, City, District) Office shall immediately survey and decide the degree of failure of crops in the affected areas, and report to the Farm Land Tenancy Committee of the Municipal or County (City) Government who shall decide after deliberation the measures for rent reduction.If the actual amount harvested by the farm land is less than 70 percent of the normal amount due to failure of crops, the rent should be exempted.
中文原文 耕地三七五減租條例第11條
耕地因災害或其他不可抗力致農作物歉收時,承租人得請求鄉(鎮、市、區)公所耕地租佃委員會查勘歉收成數,議定減租辦法,鄉(鎮、市、區)公所耕地租佃委員會應於三日內辦理;必要時得報請直轄市或縣(市)政府耕地租佃委員會復勘決定之。
地方如普遍發生前項農作物歉收情事,鄉(鎮、市、區)公所耕地租佃委員會應即勘定受災地區歉收成數,報請直轄市或縣(市)政府耕地租佃委員會議定減租辦法。
耕地因災歉致收穫量不及三成時,應予免租。

English translation for reference only; the Chinese text prevails. Not legal advice.