§ 4-3-605 - Discharge of secondary obligors.
               	 		
4-3-605.    Discharge of secondary obligors.
    (a)  If  a person entitled to enforce an instrument releases the obligation of a  principal obligor in whole or in part, and another party to the  instrument is a secondary obligor with respect to the obligation of that  principal obligor, the following rules apply:
      (1)  any  obligations of the principal obligor to the secondary obligor with  respect to any previous payment by the secondary obligor are not  affected. Unless the terms of the release preserve the secondary  obligor's recourse, the principal obligor is discharged, to the extent  of the release, from any other duties to the secondary obligor under  this chapter.
      (2)  unless the  terms of the release provide that the person entitled to enforce the  instrument retains the right to enforce the instrument against the  secondary obligor, the secondary obligor is discharged to the same  extent as the principal obligor from any unperformed portion of its  obligation on the instrument. If the instrument is a check and the  obligation of the secondary obligor is based on an indorsement of the  check, the secondary obligor is discharged without regard to the  language or circumstances of the discharge or other release.
      (3)  if  the secondary obligor is not discharged under paragraph (2), the  secondary obligor is discharged to the extent of the value of the  consideration for the release, and to the extent that the release would  otherwise cause the secondary obligor a loss.
(b)  If  a person entitled to enforce an instrument grants a principal obligor  an extension of the time at which one or more payments are due on the  instrument and another party to the instrument is a secondary obligor  with respect to the obligation of that principal obligor, the following  rules apply:
      (1)  any obligations  of the principal obligor to the secondary obligor with respect to any  previous payment by the secondary obligor are not affected. Unless the  terms of the extension preserve the secondary obligor's recourse, the  extension correspondingly extends the time for performance of any other  duties owed to the secondary obligor by the principal obligor under this  chapter.
      (2)  the secondary obligor is discharged to the extent that the extension would otherwise cause the secondary obligor a loss.
      (3)  to  the extent that the secondary obligor is not discharged under paragraph  (2), the secondary obligor may perform its obligations to a person  entitled to enforce the instrument as if the time for payment had not  been extended or, unless the terms of the extension provide that the  person entitled to enforce the instrument retains the right to enforce  the instrument against the secondary obligor as if the time for payment  had not been extended, treat the time for performance of its obligations  as having been extended correspondingly.
(c)  If  a person entitled to enforce an instrument agrees, with or without  consideration, to a modification of the obligation of a principal  obligor other than a complete or partial release or an extension of the  due date and another party to the instrument is a secondary obligor with  respect to the obligation of that principal obligor, the following  rules apply:
      (1)  any obligations  of the principal obligor to the secondary obligor with respect to any  previous payment by the secondary obligor are not affected. The  modification correspondingly modifies any other duties owed to the  secondary obligor by the principal obligor under this chapter.
      (2)  the  secondary obligor is discharged from any unperformed portion of its  obligation to the extent that the modification would otherwise cause the  secondary obligor a loss.
      (3)  to  the extent that the secondary obligor is not discharged under paragraph  (2), the secondary obligor may satisfy its obligation on the instrument  as if the modification had not occurred, or treat its obligation on the  instrument as having been modified correspondingly.
(d)  If  the obligation of a principal obligor is secured by an interest in  collateral, another party to the instrument is a secondary obligor with  respect to that obligation, and a person entitled to enforce the  instrument impairs the value of the interest in collateral, the  obligation of the secondary obligor is discharged to the extent of the  impairment. The value of an interest in collateral is impaired to the  extent the value of the interest is reduced to an amount less than the  amount of the recourse of the secondary obligor, or the reduction in  value of the interest causes an increase in the amount by which the  amount of the recourse exceeds the value of the interest. For purposes  of this subsection, impairing the value of an interest in collateral  includes failure to obtain or maintain perfection or recordation of the  interest in collateral, release of collateral without substitution of  collateral of equal value or equivalent reduction of the underlying  obligation, failure to perform a duty to preserve the value of  collateral owed, under chapter 9 or other law, to a debtor or other  person secondarily liable, and failure to comply with applicable law in  disposing of or otherwise enforcing the interest in collateral.
(e)  A  secondary obligor is not discharged under subdivision (a)(3) or  subsections (b), (c), or (d) unless the person entitled to enforce the  instrument knows that the person is a secondary obligor or has notice  under    4-3-419(c) that the instrument was signed for accommodation.
(f)  A  secondary obligor is not discharged under this section if the secondary  obligor consents to the event or conduct that is the basis of the  discharge, or the instrument or a separate agreement of the party  provides for waiver of discharge under this section specifically or by  general language indicating that parties waive defenses based on  suretyship or impairment of collateral. Unless the circumstances  indicate otherwise, consent by the principal obligor to an act that  would lead to a discharge under this section constitutes consent to that  act by the secondary obligor if the secondary obligor controls the  principal obligor or deals with the person entitled to enforce the  instrument on behalf of the principal obligor.
(g)  A release or extension preserves a secondary obligor's recourse if the terms of the release or extension provide that:
      (1)  the person entitled to enforce the instrument retains the right to enforce the instrument against the secondary obligor; and
      (2)  the recourse of the secondary obligor continues as if the release or extension had not been granted.
(h)  Except  as otherwise provided in subsection (i), a secondary obligor asserting  discharge under this section has the burden of persuasion both with  respect to the occurrence of the acts alleged to harm the secondary  obligor and loss or prejudice caused by those acts.
(i)  If  the secondary obligor demonstrates prejudice caused by an impairment of  its recourse, and the circumstances of the case indicate that the  amount of loss is not reasonably susceptible of calculation or requires  proof of facts that are not ascertainable, it is presumed that the act  impairing recourse caused a loss or impairment equal to the liability of  the secondary obligor on the instrument. In that event, the burden of  persuasion as to any lesser amount of the loss is on the person entitled  to enforce the instrument.