Retiree Health Benefits 1. There is currently in effect a retiree health benefit program for retired members of LACERS under LAAC Division 4, Chapter 11. All covered employees who are members of LACERS, regardless of retirement tier, shall contribute to LACERS four percent (4%) of their pre-tax compensation earnable toward vested retiree health benefits as provided by this program. The retiree health benefit available under this program is a vested benefit for all covered employees who make this contribution, including employees enrolled in LACERS Tier 3. 2. With regard to LACERS Tier 1, as provided by LAAC Section 4.1111, the monthly Maximum Medical Plan Premium Subsidy, which represents the Kaiser 2-party non-Medicare Part A and Part B premium, is vested for all members who made the additional contributions authorized by LAAC Section 4.1003(c). 3. Additionally, with regard to Tier 1 members who made the additional contribution authorized by LAAC Section 4.1003(c), the maximum amount of the annual increase authorized in LAAC Section 4.1111(b) is a vested benefit that shall be granted by the LACERS Board. 4. With regard to LACERS Tier 3, the Implementing Ordinance shall provide that all Tier 3 members shall contribute to LACERS four percent (4%) of their pre-tax compensation earnable toward vested retiree health benefits, and shall amend LAAC Division 4, Chapter 11 to provide the same vested benefits to all Tier 3 members as currently are provided to Tier 1 members who make the same four percent (4%) contribution to LACERS under the retiree health benefit program. 5. The entitlement to retiree health benefits under this provision shall be subject to the rules under LAAC Division 4, Chapter 11 in effect as of the effective date of this provision, and the rules that shall be placed into LAAC Division 4, Chapters 10 and 11, with regard to Tier 3, by the Implementing Ordinance. 6. As further provided herein, the amount of employee contributions is subject to bargaining in future MOU negotiations. 7. The vesting schedule for the Maximum Medical Plan Premium Subsidy for employees enrolled in LACERS Tier 1 and LACERS Tier 3 shall be the same. 8. Employees whose Health Service Credit, as defined in LAAC Division 4, Chapter 11, is based on periods of part-time and less than full-time employment, shall receive full, rather than prorated, Health Service Credit for periods of service. The monthly retiree medical subsidy amount to which these employees are entitled shall be prorated based on the extent to which their service credit is prorated due to their less than full time status.