Except as provided in subsection (b) of this section, this subtitle applies only to: correctional officers serving in any of the first six job classifications; security attendants at Clifton T. Perkins Hospital Center; a detention center officer employed by a participating governmental unit that on or after July 1, 2006, has elected to participate in the Correctional Officers’ Retirement System; an individual serving as a correctional dietary, maintenance, laundry, or supply officer; an individual serving as a Maryland Correctional Enterprises officer, officer trainee, plant supervisor, plant manager, or regional manager; a correctional officer serving as a security chief, a facility administrator, an assistant warden, or a warden who: begins employment in that position on or after July 1, 2014; or is serving in that position on June 30, 2014, and elects to transfer to the Correctional Officers’ Retirement System from: the Employees’ Pension System on or before December 31, 2014; or the Employees’ Retirement System on or before December 31, 2015; an individual serving as a correctional case management specialist, supervisor, or manager on or after July 1, 2016; an individual serving as a parole and probation agent, supervisor, or regional administrator on or after July 1, 2017; an individual serving as a Department of Public Safety and Correctional Services employee in one of the following positions on or after July 1, 2017: an alcohol and drug: associate counselor, counselor lead, counselor provisional, or counselor supervisor; professional counselor, counselor provisional, or counselor supervisor; or supervised counselor or counselor provisional; a mental health professional counselor, graduate professional counselor, professional counselor advanced, or professional supervisor; a psychologist, psychology associate, or psychology associate doctorate; a social worker, social worker advanced, social worker supervisor, or social work regional supervisor; or a recreation officer or supervisor; an individual serving as a Department of Juvenile Services employee in one of the following positions on or after July 1, 2018: a community detention officer or community detention supervisor; a youth transportation officer, youth transportation officer lead, youth transportation officer supervisor, or youth transportation officer trainee; a resident advisor, resident advisor lead, resident advisor supervisor, or resident advisor trainee; or a youth recreation specialist; an individual serving as a Department of Public Safety and Correctional Services employee in one of the following positions on or after July 1, 2018: a parole and probation assistant regional administrator; a psychology services chief; a correctional maintenance officer supervisor; a correctional maintenance officer manager; a correctional maintenance services officer; a correctional maintenance services supervisor; a correctional maintenance services manager; or a correctional maintenance regional manager; an individual serving as a Department of Juvenile Services employee in one of the following positions on or after July 1, 2022: a case management specialist I, II, or III; a case management specialist supervisor; a case management specialist program supervisor; or a group life manager I or II; an individual serving as a Maryland Department of Health employee on or after July 1, 2024: at one of the following facilities: Eastern Shore Hospital Center; Thomas B. Finan Center; Potomac Center/Secure Evaluation and Therapeutic Treatment Program; Spring Grove Hospital Center; Springfield Hospital Center; Regional Institute for Children and Adolescents – Baltimore; or John L. Gildner Regional Institute for Children and Adolescents; and in one of the following positions: a CAMH associate I, II, or lead – CI; a developmental disability associate – CI; a direct care assistant I or II – CI; a direct care trainee – CI; a licensed practical nurse I, II, III advance, or III lead – CI; a resident associate SETT – CI; a security attendant I, II, or III; a security attendant manager I or II; or a security attendant supervisor; an individual serving as a Maryland Department of Health employee on or after July 1, 2025: at a facility described in item (13)(i) of this subsection; and in one of the following positions: a CAMH associate supervisor – CI; a developmental disability associate assistant manager – CI; a developmental disability associate manager – CI; and a developmental disability associate supervisor – CI; and an individual serving as a Maryland Department of Health employee on or after July 1, 2026: at a facility described in item (13)(i) of this subsection; and in one of the following positions: a CAMH specialist I – CI; or a CAMH specialist II – CI. This subtitle does not apply to: an employee of the Baltimore City Jail as of June 30, 1991, who: became an employee of the Baltimore City Detention Center on July 1, 1991; and did not elect to become a member of the Correctional Officers’ Retirement System on that date; a detention center officer employed by a participating governmental unit as a local detention center officer on the effective date of participation on or after July 1, 2006, who did not elect to become a member of the Correctional Officers’ Retirement System within 6 months of the effective date of participation; or a correctional officer serving as a security chief, a facility administrator, an assistant warden, or a warden who is in that position on June 30, 2014, and does not elect to transfer membership to the Correctional Officers’ Retirement System from: the Employees’ Pension System on or before December 31, 2014; or the Employees’ Retirement System on or before December 31, 2015.