Sec. I. A subsection to be numbered thirty-four is added to Section seven of Commonwealth Act Numbered Two hundred and forty-six, commonly known as the "Budget Act," to read as follows:
(34) Temporary employment of substitute officers, in government vessels. - Whenever an officer or member of the crew of any government vessel is absent on leave, the Department Head may employ, upon the recommendation of the director of the Bureau or office concerned, a temporary substitute if the need of the service so requires. The salary of the substitute officer or member of the crew shall be paid from the savings in the appropriation for salaries and wages for the Bureau or office concerned.