Be it enacted by the Senate and House of Representatives in General Court assembled, and by the authority of the same, as follows:

The first paragraph of section 19 of chapter 161A of the General Laws, as appearing in the 1996 Official Edition, is hereby amended by inserting after the word "training", in line 38, the following words:- ; provided, however, that to the extent that levels of staffing and training have an impact on the safety of authority employees, the determination, development and implementation of such levels of staffing and training shall not constitute a matter of inherent management right and the directors shall have the authority to bargain collectively on such subjects with labor organizations representing employees of the authority; and provided further, that such directors and labor organizations may include in any written agreement a grievance procedure culminating in final and binding arbitration before a neutral arbitrator which may be invoked in the event that an employee of the authority to whom such agreement applies is aggrieved by actions taken by authority directors or management with respect to the development, determination or implementation of levels of staffing and training which have an impact on the safety of authority employees.