用人单位应当对有毒作业的劳动者进行离岗时的职业健康检查；对离岗时未进行职业健康检查的劳动者，用人单位不得解除或者终止与其订立的劳动合同。条例还规定，用人单位发生分立、合并、解散、破产等情形的，应当对从事使用有毒物品作业的劳动者进行健康检查，并按照国家有关 The employing unit shall conduct an occupational health examination upon leaving the post for laborers with toxic work; and for the laborers who have not performed any occupational health examination when leaving work, the employing unit shall not release or terminate the labor contract concluded with them. The regulations also stipulate that where the employing units are divided, merged, dissolved, or bankrupted, the employees who engage in the use of toxic substances shall undergo a health examination and, in accordance with the relevant provisions of the State