§ 413. Limitation of other statutes. a. No other provision of law in any other statute which provides wholly or partly at the expense of the state or of a participating employer for pensions, retirement benefits, emoluments or awards for employees in police or fire service, their widows or widowers or other dependents, shall apply to members or beneficiaries of the police and fire retirement system established by this article, their widows, widowers or other dependents.

b. This article shall not:

1. Prevent a person whose salary is paid from two or more sources, each entitling him to membership in a retirement system, from being a member in all such systems, or

2. Supersede or make inoperative the provisions of § 227 of the executive law in so far as they apply to an officer or employee in the division of state police of the executive department who is a member of the retirement system.

3. Prevent the extension of old-age and survivors insurance coverage to members of the police and fire retirement system or the receipt of benefits therefrom by such members, their wives or husbands or widows or widowers or their other dependents.

4. Prevent a member of the police and fire retirement system whose membership is authorized by paragraph nine of subdivision c of section three hundred forty of this article, from receiving, upon his or her subsequent retirement from the police and fire retirement system, benefits based on service not included in that upon which his or her retirement or pension from another pension or retirement system is or would be based.

5. Prevent payment of a survivor's benefit, pursuant to § 154 of the civil service law, on account of the death of a member of the retirement system.

c. The provisions of this article shall be operative, notwithstanding any contrary provision of law.