Sec. 1. 36 MRSA §5122, sub-§2, śM, as amended by PL 2003, c. 391, §5, is further amended to read:

M. For each individual who is a primary recipient of benefits under an employee retirement plan or disability retirement plan, an amount that is the lesser of:

(1) Six thousand dollars reduced by the total amount of the individual's social security benefits and railroad retirement benefits paid by the United States, but not less than $0. The reduction does not apply to benefits paid under a military retirement plan; or

(2) The aggregate of benefits received by the primary recipient as disability income or under employee retirement plans or disability retirement plans included in the individual's federal adjusted gross income.

For purposes of this paragraph, the following terms have the following meanings. "Primary recipient" means the individual upon whose earnings the employee retirement plan benefits or disability retirement plan benefits are based or the surviving spouse of that individual. "Disability retirement plan" means a plan providing disability benefits received pursuant to Title 5, chapter 423, subchapter 5, article 3 or 3-A. "Employee retirement plan" means a state, federal or military retirement plan or any other retirement benefit plan established and maintained by an employer for the benefit of its employees under the Code, Section 401(a), Section 403 or Section 457(b), except that distributions made pursuant to a section 457(b) plan are not eligible for the deduction provided by this paragraph if they are made prior to age 55 and are not part of a series of substantially equal periodic payments made for the life of the primary recipient or the joint lives of the primary recipient and that recipient's designated beneficiary. "Employee retirement plan" does not include an individual retirement account under Section 408 of the Code, a Roth IRA under Section 408A of the Code, a rollover individual retirement account, a simplified employee pension under Section 408(k) of the Code or an ineligible deferred compensation plan under Section 457(f) of the Code. Benefits under an employee retirement plan do not include distributions that are subject to the tax imposed by the Code, Section 72(t). "Military retirement plan" means benefits received as a result of service in the active or