Any person who has testified under oath at a public hearing held by the director pursuant to this chapter may be granted, upon request prior to the close of the hearing, a period of time not to exceed 10 calendar days following the closing date of the public hearing, in which to file with the director a written posthearing brief in amplification, explanation, or withdrawal of that person’s testimony. Any such posthearing brief shall be made available by the director to any interested person for inspection. Except as herein provided, the director, in formulating any stabilization and marketing plan, pursuant to this chapter, following a public hearing, shall not accept or consider any posthearing brief. Nothing in this section shall require the director to prepare, or to make available, any verbatim transcript or other record or summary of the hearing within the 10-calendar-day period referred to in this section. However, any verbatim transcript or other record or summary of the hearing prepared for or by the director shall be made available to any interested party for inspection at the office of the director in Sacramento and, upon reasonable request, at the regional office of the director nearest the location at which the public hearing was held.