(810 ILCS 5/8-402) (from Ch. 26, par. 8-402)
    Sec. 8-402. Assurance that indorsement or instruction is effective.
    (a) An issuer may require the following assurance that each necessary indorsement or each instruction is genuine and authorized:
        (1) in all cases, a guaranty of the signature of the person making an indorsement or
    
originating an instruction including, in the case of an instruction, reasonable assurance of identity;
        (2) if the indorsement is made or the instruction is originated by an agent, appropriate
    
assurance of actual authority to sign;
        (3) if the indorsement is made or the instruction is originated by a fiduciary pursuant
    
to Section 8-107(a)(4) or (a)(5), appropriate evidence of appointment or incumbency;
        (4) if there is more than one fiduciary, reasonable assurance that all who are required
    
to sign have done so; and
        (5) if the indorsement is made or the instruction is originated by a person not covered
    
by another provision of this subsection, assurance appropriate to the case corresponding as nearly as may be to the provisions of this subsection.
    (b) An issuer may elect to require reasonable assurance beyond that specified in this Section.
    (c) In this Section:
        (1) "Guaranty of the signature" means a guaranty signed by or on behalf of a person
    
reasonably believed by the issuer to be responsible. An issuer may adopt standards with respect to responsibility if they are not manifestly unreasonable.
        (2) "Appropriate evidence of appointment or incumbency" means:
            (i) in the case of a fiduciary appointed or qualified by a court, a certificate
        
issued by or under the direction or supervision of the court or an officer thereof and dated within 60 days before the date of presentation for transfer; or
            (ii) in any other case, a copy of a document showing the appointment or a
        
certificate issued by or on behalf of a person reasonably believed by an issuer to be responsible or, in the absence of that document or certificate, other evidence the issuer reasonably considered appropriate.
(Source: P.A. 89-364, eff. 1-1-96.)