290.262.  Determination of hourly rate, certification — objections, hearings — final determination — notice to department by public body, when. — 1.  A certified copy of any initial wage determinations made pursuant to section 290.257 shall be filed immediately with the secretary of state and with the department in Jefferson City.  Copies shall be supplied by the department to all persons requesting them within ten days after the filing.

  2.  At any time within thirty days after the certified copies of the determinations have been filed with the secretary of state and the department, any person who is affected thereby may object in writing to a determination or a part thereof that he or she deems objectionable by filing a written notice with the department, stating the specific grounds of the objection.  If no objection is filed, the determination is final after thirty days.

  3.  After the receipt of the objection, the department shall set a date for a hearing on the objection.  The date for the hearing shall be within sixty days of the receipt of the objection.  Written notice of the time and place of the hearing shall be given to the objectors at least ten days prior to the date set for the hearing.

  4.  The department at its discretion may hear each written objection separately or consolidate for hearing any two or more written objections.  At the hearing the department shall first introduce in evidence the investigation it instituted and the other facts which were considered at the time of the original determination which formed the basis for its determination.  The department, or the objector, or any interested party, thereafter may introduce any evidence that is material to the issues.

  5.  Within twenty days of the conclusion of the hearing, the department shall rule on the written objection and make the final determination that it believes the evidence warrants.  Immediately, the department shall file a certified copy of its final determination with the secretary of state and with the department and shall serve a copy of the final determination on all parties to the proceedings by personal service or by registered mail.

  6.  This final decision of the department of the prevailing wages in the locality for each occupational title is subject to review in accordance with the provisions of chapter 536.  Any person affected, whether or not the person participated in the proceedings resulting in the final determination, may have the decision of the department reviewed.  The filing of the final determination with the secretary of state shall be considered a service of the final determination on persons not participating in the administrative proceedings resulting in the final determination.

  7.  At any time before trial any person affected by the final determination of the department may intervene in the proceedings to review under chapter 536 and be made a party to the proceedings.

  8.  Any annual wage order made for a particular occupational title in a locality, that is based on the number of hours worked under a collective bargaining agreement, may be altered once each year, as provided in this subsection.  The prevailing wage for each such occupational title may be adjusted on the anniversary date of any collective bargaining agreement which covers all persons in that particular occupational title in the locality in accordance with any annual incremental wage increases set in the collective bargaining agreement.  If the prevailing wage for an occupational title is adjusted pursuant to this subsection, the employee's representative or employer in regard to such collective bargaining agreement shall notify the department of this adjustment, including the effective date of the adjustment.  The adjusted prevailing wage shall be in effect until the next final annual wage order is issued pursuant to this section.  The wage rates for any particular job, contracted and commenced within sixty days of the contract date, which were set as a result of the annual or revised wage order, shall remain in effect for the duration of that particular job.

  9.  In addition to all other reporting requirements of sections 290.210 to 290.340, each public body which is awarding a contract for a public works project shall, prior to beginning of any work on such public works project, notify the department, on a form prescribed by the department, of the scope of the work to be done, the various types of craftsmen who will be needed on the project, and the date work will commence on the project.