Pen. Code, § 3057

(a) Confinement pursuant to a revocation of parole in the absence of a new conviction and commitment to prison under other provisions of law, shall not exceed 12 months, except as provided in subdivision (c).

(b) Upon completion of confinement pursuant to parole revocation without a new commitment to prison, the inmate shall be released on parole for a period that shall not extend beyond that portion of the maximum statutory period of parole specified by Section 3000 which was unexpired at the time of each revocation.

(c) Notwithstanding the limitations in subdivision (a) and in Section 3060.5 upon confinement pursuant to a parole revocation, the parole authority may extend the confinement pursuant to parole revocation for a maximum of an additional 12 months for subsequent acts of misconduct committed by the parolee while confined pursuant to that parole revocation. Upon a finding of good cause to believe that a parolee has committed a subsequent act of misconduct and utilizing procedures governing parole revocation proceedings, the parole authority may extend the period of confinement pursuant to parole revocation as follows: (1) not more than 180 days for an act punishable as a felony, whether or not prosecution is undertaken, (2) not more than 90 days for an act punishable as a misdemeanor, whether or not prosecution is undertaken, and (3) not more than 30 days for an act defined as a serious disciplinary offense pursuant to subdivision (a) of Section 2932.

(d) (1) Except for parolees specified in paragraph (2), any revocation period imposed under subdivision (a) may be reduced in the same manner and to the same extent as a term of imprisonment may be reduced by worktime credits under Section 2933. Worktime credit shall be earned and may be forfeited pursuant to the provisions of Section 2932.

Worktime credit forfeited shall not be restored.

(2) The following parolees shall not be eligible for credit under this subdivision:

(A) Parolees who are sentenced under Section 1168 with a maximum term of life imprisonment.

(B) Parolees who violated a condition of parole relating to association with specified persons, entering prohibited areas, attendance at parole outpatient clinics, or psychiatric attention.

(C) Parolees who were revoked for conduct described in, or that could be prosecuted under any of the following sections, whether or not prosecution is undertaken: Section 189, Section 191.5, subdivision (a) of Section 192, subdivision (a) of Section 192.5, Section 203, 207, 211, 215, 217.1, or 220, subdivision (b) of Section 241, Section 244, paragraph (1) or (2) of subdivision (a) of Section 245, paragraph (2) or (6) of subdivision (a) of Section 261, paragraph (1) or (4) of subdivision (a) of former Section 262, Section 264.1, subdivision (c) or (d) of Section 286, subdivision (c) or (d) of Section 287 or of former Section 288a, Section 288, subdivision (a) of Section 289, 347, or 404, subdivision (a) of Section 451, Section 12022, 12022.5, 12022.53, 12022.7, 12022.8, or 25400, Chapter 2 (commencing with Section 29800) of Division 9 of Title 4 of Part 6, any provision listed in Section 16590, or Section 664 for any attempt to engage in conduct described in or that could be prosecuted under any of the above-mentioned sections.

(D) Parolees who were revoked for any reason if they had been granted parole after conviction of any of the offenses specified in subparagraph (C).

(E) Parolees who the parole authority finds at a revocation hearing to be unsuitable for reduction of the period of confinement because of the circumstances and gravity of the parole violation, or because of prior criminal history.

(e) Commencing October 1, 2011, this section shall only apply to inmates sentenced to a term of life imprisonment or parolees that on or before September 30, 2011, are pending a final adjudication of a parole revocation charge and subject to subdivision (c) of Section 3000.09.