Any authority may submit to the Attorney General any bonds to be issued pursuant to this chapter after all proceedings for their issuance have been taken. Upon such submission the Attorney General shall examine into and pass upon the validity of the bonds and the regularity of all proceedings in connection with them. If the proceedings conform to this chapter and are otherwise regular in form and if the bonds when delivered and paid for will constitute binding and legal obligations of the authority enforceable according to their terms, the Attorney General shall certify in substance upon the back of each bond that it is issued in accordance with the Constitution and state laws.