An Act relative to the definition of Group 4 of the retirement system

This bill amends the definition of "Group 4" in the state retirement system to explicitly include Commonwealth employees working as steam firemen/co-generation, third class engineers/co-generation, second class engineers/co-generation, first class engineers/co-generation, and chief engineers/co-generation. It directly affects these specific government employees by clarifying their retirement system classification. The change is purely definitional, adding these job titles to the existing Group 4 category without altering benefit formulas or eligibility rules. This ensures these roles are formally recognized under the retirement system's current structure.