The Kansas sentencing commission shall meet as necessary for the purpose of modifying and improving the guidelines. The secretary of corrections shall notify the commission at any time when it is determined that prisons in the state have been filled to 90% or more of their overall capacity. The commission shall then propose modifications which amend the sentencing guidelines grid, including severity levels, criminal history scores or other factors which would result in the reduction of any sentence, as deemed necessary to maintain the prison population within the reasonable management capacity of the prisons as determined after consultation with the secretary of corrections. Such proposed modifications shall be submitted to the legislature by February 1 in any year in which the commission proposes to make the change. No change will be in effect without the approval of the legislature and the governor.