§  70.45 Determinate sentence; post-release supervision.
  1.  In  general.  Each  determinate  sentence also includes, as a part
thereof, an additional period of post-release supervision.  Such  period
shall  commence  as  provided  in subdivision five of this section and a
violation of any condition of supervision occurring at any  time  during
such period of post-release supervision shall subject the defendant to a
further  period  of  imprisonment  of  at least six months and up to the
balance of the remaining period  of  post-release  supervision,  not  to
exceed five years. Such maximum limits shall not preclude a longer peri-
od  of  further  imprisonment  for  a  violation  where the defendant is
subject to indeterminate and determinate sentences.
  2. Period of post-release  supervision.  The  period  of  post-release
supervision  for a determinate sentence shall be five years, except that
such period shall be three years  whenever  a  determinate  sentence  of
imprisonment is imposed pursuant to section 70.02 of this article upon a
conviction  for  a  class D or class E violent felony offense; provided,
however, that when a determinate sentence is imposed pursuant to section
70.02 of this article, the court, at the time of sentence, may specify a
shorter period of post-release supervision of  not  less  than  two  and
one-half years upon a conviction for a class B or class C violent felony
offense  and  a  shorter  period of post-release supervision of not less
than one and one-half years upon a conviction for a class D or  class  E
violent felony offense.
  3.  Conditions  of post-release supervision. The board of parole shall
establish and impose conditions of post-release supervision in the  same
manner  and to the same extent as it may establish and impose conditions
in accordance with the executive law upon persons who are granted parole
or  conditional  release;  provided  that,  notwithstanding  any   other
provision of law, the board of parole may impose as a condition of post-
release  supervision  that  for  a period not exceeding six months imme-
diately following release from the underlying term of  imprisonment  the
person  be  transferred to and participate in the programs of a residen-
tial treatment facility as that term is defined in  subdivision  six  of
section two of the correction law. Upon release from the underlying term
of  imprisonment, the person shall be furnished with a written statement
setting forth the conditions of post-release supervision  in  sufficient
detail to provide for the person's conduct and supervision.
  4. Revocation of post-release supervision. An alleged violation of any
condition  of  post-release  supervision  shall  be initiated, heard and
determined in accordance with the provisions of subdivisions  three  and
four of section two hundred fifty-nine-i of the executive law.
  5.  Calculation  of  service  of period of post-release supervision. A
period or periods of post-release supervision shall  be  calculated  and
served as follows:
  (a)  A  period  of  post-release  supervision  shall commence upon the
person's release from imprisonment to supervision  by  the  division  of
parole  and  shall  interrupt the running of the determinate sentence or
sentences of imprisonment and the indeterminate sentence or sentences of
imprisonment, if any. The remaining portion of any maximum or  aggregate
maximum  term  shall  then  be  held  in  abeyance  until the successful
completion  of  the  period  of post-release supervision or the person's
return to the custody of the department of correctional services, which-
ever occurs first.
  (b) Upon the completion of the period of post-release supervision, the
running of such sentence or sentences of imprisonment shall  resume  and
only  then shall the remaining portion of any maximum or aggregate maxi-
mum term previously held in abeyance be credited with and diminished  by
such  period of post-release supervision. The person shall then be under
the jurisdiction of the division of parole for the remaining portion  of
such maximum or aggregate maximum term.
  (c)  When  a  person is subject to two or more periods of post-release
supervision, such periods shall merge with and be satisfied by discharge
of the period of post-release supervision having the  longest  unexpired
time to run; provided, however, any time served upon one period of post-
release  supervision  shall not be credited to any other period of post-
release supervision except as provided in subdivision  five  of  section
70.30 of this article.
  (d)  When a person is alleged to have violated a condition of post-re-
lease supervision and the division of parole has declared such person to
be delinquent: (i) the declaration of delinquency  shall  interrupt  the
period of post-release supervision; (ii) such interruption shall contin-
ue  until  the  person is restored to post-release supervision; (iii) if
the  person  is  restored  to  post-release  supervision  without  being
returned  to  the department of correctional services, any time spent in
custody from the date of delinquency until restoration  to  post-release
supervision  shall first be credited to the maximum or aggregate maximum
term of the sentence or sentences  of  imprisonment,  but  only  to  the
extent authorized by subdivision three of section 70.40 of this article.
Any  time  spent  in  custody  solely pursuant to such delinquency after
completion of the maximum or aggregate maximum term of the  sentence  or
sentences  of  imprisonment  shall be credited to the period of post-re-
lease supervision, if any; and (iv) if the person is ordered returned to
the department of correctional services, the person shall be required to
serve a time assessment of at least six months before being  re-released
to  post-release supervision.  In the event the balance of the remaining
period of post-release supervision is six  months  or  less,  such  time
assessment  shall  be  six  months  unless a longer period is authorized
pursuant to subdivision one of this section. The time  assessment  shall
commence upon the issuance of a determination after a final hearing that
the  person  has  violated  one or more conditions of supervision. While
serving such assessment, the person shall not receive any good  behavior
allowance pursuant to section eight hundred three of the correction law.
Any  time  spent in custody from the date of delinquency until return to
the department of correctional services shall first be credited  to  the
maximum or aggregate maximum term of the sentence or sentences of impri-
sonment,  but  only  to  the  extent  authorized by subdivision three of
section 70.40 of this article.  The maximum or aggregate maximum term of
the sentence or sentences of imprisonment shall run while the person  is
serving such time assessment in the custody of the department of correc-
tional  services.    Any  time  spent in custody solely pursuant to such
delinquency after completion of the maximum or aggregate maximum term of
the sentence or sentences of imprisonment shall be credited to the peri-
od of post-release supervision, if any.
  (e) Notwithstanding paragraph (d) of this subdivision, in the event  a
person  is sentenced to one or more additional indeterminate or determi-
nate term or terms of imprisonment prior to the completion of the period
of post-release supervision, such  period  of  post-release  supervision
shall  be  held  in  abeyance  and  the person shall be committed to the
custody of the department of correctional services  in  accordance  with
the requirements of the prior and additional terms of imprisonment.
  (f)  When  a  person  serving  a period of post-release supervision is
returned to the department of correctional services pursuant to an addi-
tional consecutive sentence of imprisonment and without a declaration of
delinquency, such period of post-release supervision shall  be  held  in
abeyance while the person is in the custody of the department of correc-
tional  services.   Such period of post-release supervision shall resume
running upon the person's re-release.

(For verification consult Official Text at Senate Gopher site.)