Rule 3, Sec. 6, Omnibus Rules
SECTION 6. When work on rest day authorized.
An employer may require any of his employees to work on his scheduled rest day for the duration of the following emergencies and exceptional conditions:
(a) In case of actual or impending emergencies caused by serious accident, fire, flood, typhoon, earthquake, epidemic or other disaster or calamity, to prevent loss of life or property, or in cases of force majeure or imminent danger to public safety;
(b) In case of urgent work to be performed on machineries, equipment or installations to avoid serious loss which the employer would otherwise suffer;
(c) In the event of abnormal pressure of work due to special circumstances, where the employer cannot ordinarily be expected to resort to other measures;
(d) To prevent serious loss of perishable goods;
(e) Where the nature of the work is such that the employees have to work continuously for seven (7) days in a week or more, as in the case of the crew members of a vessel to complete a voyage and in other similar cases; and
(f) When the work is necessary to avail of favorable weather or environmental conditions where performance or quality of work is dependent thereon.
No employee shall be required against his will to work on his scheduled rest day except under circumstances provided in this Section: Provided, However, that where an employee volunteers to work on his rest day under other circumstances, he shall express such desire in writing, subject to the provisions of Section 7 hereof regarding additional compensation.
Compulsory Work on Rest Day
General Rule: No employee shall be required against his will to work on his scheduled rest day
Exception #1: Emergencies
The employer may require his employees to work on a rest day when:
(a) During disasters to prevent loss of life and property or danger to public safety
(b) Urgent work to perform on machinery to avoid serious loss which the employer would suffer
(c) Special circumstances where the employer cannot resort to other measures
(d) To prevent loss or damage to perishable goods
(e) Nature of work requires that employees have to work continuously for 7 days in a week or more e.g. crew members of vessel, etc.
(f) Work is necessary to avail of favorable weather or environmental conditions where performance or quality of work depends on it
Exception #2: Employee Volunteers
An employee may volunteer to work on his rest day under other circumstances
If he does so, he must express such desire in writing