关于企业实行不定时工作制和综合计算工时工作制的审批办法, 第五条

企业对符合下列条件之一的职工，可实行综合计算工时工作制，即分别以周、月、季、年等为周期，综合计算工作时间，但其平均日工作时间和平均周工作时间应与法定标准工作时间基本相同。
（一）交通、铁路、邮电、水运、航空、渔业等行业中因工作性质特殊，需连续作业的职工；
（二）地质及资源勘探、建筑、制盐、制糖、旅游等受季节和自然条件限制的行业的部分职工；
（三）其他适合实行综合计算工时工作制的职工。

Measures for Examination and Approval of the Flexible Working Hours System and the Working Hours System of Comprehensive Calculation by Enterprises, Article 5

Enterprises may adopt the working hour system of comprehensive calculation if their employees meet any one of the following requirements, that is, the working hours are calculated comprehensively on one week, one month, one quarter, or one year as a cycle. However, the average working hours for one day or one week shall be approximately equal to the statutory standard working hours:

(1) employees engaged in the trades such as communications, railways, posts and telecommunications, water transportation, aviation or fishery necessary for consecutive operations due to the special nature of their work;

(2) some employees engaged in the trades such as geology, resources prospecting, architecture, refinement of salt, refinement of sugar, or tourism restricted by seasons and natural conditions; or

(3) other employees to whom the working hour system of comprehensive calculation shall apply.