(a) Bonds issued by an authority under the provisions of this chapter are hereby made securities in which all public officers and public bodies of the state and its political subdivisions, all insurance companies, credit unions, building and loan associations, investment companies, banking associations, trust companies, executors, administrators, trustees and other fiduciaries and pension, profit-sharing and retirement funds may properly and legally invest funds, including capital in their control or belonging to them. Such bonds are hereby made securities which may properly and legally be deposited with and received by any state or municipal officer or any agency or political subdivision of the state for any purpose for which the deposit of bonds or obligations of the state is now or may hereafter be authorized by law.

(b) Whether or not the bonds of an authority created pursuant to this chapter are of such form and character as to be negotiable instruments under article 8 of title 42a, such bonds shall be and are hereby made negotiable instruments within the meaning of and for all the purposes of said article 8 of title 42a, subject only to the provisions of the bonds for registration.

(c) Any pledge made by a municipality or an authority pursuant to the provisions of this chapter shall be valid and binding from the time when the pledge is made, and any revenues or other receipts, funds or moneys so pledged and thereafter received by such municipality or authority shall be subject immediately to the lien of such pledge without any physical delivery thereof or further act. The lien of any such pledge shall be valid and binding as against all parties having claims of any kind in tort, contract, or otherwise against the municipality or the authority, irrespective of whether such parties have notice thereof. Neither the resolution nor any other instrument by which a pledge is created need be recorded.