(b) Except as provided in section fifty-one, vacancies in administrative positions shall be filled, so far as practicable, by promotion as prescribed in subdivision one of this section, which may be made from among persons holding administrative positions in lower grades without regard to the specialties of their lower grade positions. The civil service department, upon the request of an appointing officer stating the reasons why the filling of administrative positions in grade fourteen or higher under his jurisdiction from an interdepartmental promotion list or a promotion list including persons employed in other units of government would be in the best interests of the state service, or upon its own initiative whenever it finds that the filling of administrative positions in grade fourteen or higher in any department from such an interdepartmental or intergovernmental promotion list would be in the best interests of the state service, may certify such an interdepartmental or intergovernmental promotion list for filling such positions, without preference to departmental lists or to eligibles holding lower grade positions in the department or promotion unit in which such positions exist.

(c) Transfers shall be allowed between administrative positions in the same or related or collateral specialties which involve substantially equivalent tests or qualifications, subject to such conditions and limitations as the state civil service department may prescribe.

(d) The provisions of this subdivision shall be applicable and controlling, notwithstanding any other provisions of this section or chapter or any other law. 7. Promotion by non-competitive examination. Whenever there are no more than three persons eligible for examination for promotion to a vacant competitive class position, or whenever no more than three persons file application for examination for promotion to such position, the appointing officer may nominate one of such persons and such nominee, upon passing an examination appropriate to the duties and responsibilities of the position may be promoted, but no examination shall be required for such promotion where such nominee has already qualified in an examination appropriate to the duties and responsibilities of the position. 8. Limitation upon promotion. No promotion shall be made from one position or title to another position or title unless specifically authorized by the state civil service department or municipal commission, nor shall a person be promoted to a position or title for which there is required, by this chapter or the rules, an examination involving essential tests or qualifications different from or higher than those required for the position or title held by such person unless he has passed the examination and is eligible for appointment to such higher position or title. 9. Increase in salary as a promotion. For the purposes of this section an increase in the salary or other compensation of any person holding an office or position within the scope of the rules in force hereunder, beyond the limit fixed for the grade in which such office or position is classified, shall be deemed a promotion. 10. Credit for provisional service. No credit in a promotion examination shall be granted to any person for any time served as a provisional appointee in the position to which promotion is sought or in any similar position, provided, however, such provisional appointee by reason of such provisional appointment shall receive credit in his permanent position from which promotion is sought for such time served in such provisional appointment. 11. Notwithstanding any other provision of law, the state department of civil service may, for titles designated by it, extend to employees in the state service who are holding or who have held a position in the non-competitive or labor class of such service the same opportunity as employees in the competitive class to take promotion examinations if such examinations are to be held in conjunction with open competitive examinations. 12. Notwithstanding any other provisions of law, a municipal commission may, for entrance level titles as defined and designated by it, extend to employees in the service of a civil division who are holding or who have held a position in the non-competitive class of such service for a period of two years the same opportunity as employees in the competitive class to take promotion examinations for which such non-competitive class service is determined by the municipal commission to be appropriate preparation if such examinations are to be held in conjunction with open competitive examinations. 13. a. Notwithstanding any other provision of law, the state civil service commission may, for titles designated by it, extend to disabled veterans of the Vietnam era, the same opportunities to take promotion examinations as provided to employees in the competitive class. b. For purposes of this subdivision, "disabled veterans of the Vietnam era" shall mean veterans who served during the Vietnam conflict as defined in subparagraph four of paragraph (c) of subdivision one of section eighty-five of this chapter and who provide documented evidence that they meet the definition of disabled veteran prescribed by subdivision one of such section. 14. Notwithstanding any other provision of law, in a city containing more than one county, the municipal civil service commission may, for titles designated by it, extend to employees in the service of a civil division or public authority under its jurisdiction who are holding a position in the non-competitive class or the labor class of such service the same opportunities as employees in the competitive class to take promotional examinations for which such non-competitive class or labor class service is determined by the municipal civil service commission to be appropriate preparation. 15. Promotion eligibility of person transferred to the office of information technology services. Notwithstanding any other provision of this chapter, the names of permanent employees transferred from a state agency or department to the office of information technology services shall remain on any promotion eligible list for appointment in the agency or department from which such employees were transferred, for a period of one year or until the expiration of such list, whichever occurs first. Further, where the promotion eligible list on which such employees' names appear is established in the office of information technology services, the names of employees so transferred shall be added to such promotion eligible list.