Chap. 745. An Act providing that the assistant director of the division of water pollution control exercise duties of the director of said division in his absence or disability, and providing that clean waters scholarship interns shall be exempted from the civil service LAW. Be it enacted, etc:, as follows: Section 1. The second paragraph of section 26 of chapter 21 of the General Laws, as appearing in section 1 of chapter 685 of the acts of 1966, is hereby amended by adding the following sentence: — In the event of the absence or the disability of the director, the assistant director shall perform the duties of the office. Section 2. The third paragraph of section 38A of said chapter 21, as appearing in chapter 611 of the acts of 1968, is hereby amended by adding the following sentence: — Service rendered to the division by a recipient of such a scholarship during the three year period following his graduation, and during the regular periods of summer vacation, and such other vacation periods as the director may establish, shall not be subject to the provisions of chapter thirty-one. . : Approved August 19, 1969.