Iowa Admin. Code r. 205-11.12
When a parolee is convicted and sentenced to incarceration in Iowa for a felony or aggravated misdemeanor committed while on parole, or is convicted and sentenced to incarceration in any other state of the United States or a foreign country for an offense committed while on parole and that if committed in Iowa would be a felony or aggravated misdemeanor, the parolee's parole shall be deemed revoked as of the date of the commission of the offense. The definition and requirements for an automatic revocation of parole are set out in Iowa Code sections 908.10 and 908.10A. The administrative parole judge determines the date of commission of the felony or aggravated misdemeanor offense and the date of subsequent incarceration in a state institution. Time loss will be the time between these two dates, except that the parolee receives credit for any time the parolee was incarcerated between these two dates.
Iowa Admin. Code r. 205-11.12