(a) State institutions and agencies shall, where possible, purchase brooms, mops, rugs, rubber mats and other supplies, other than the product of prison labor, from the Commission; provided, that such goods and supplies are of standard quality and price.
(b) State institutions and agencies requiring piano tuning or chair seating shall employ persons recommended by the Commission; provided, that such persons are qualified and the service rendered is of standard quality and price.
(c) When convenience or emergency requires it the executive secretary of the Commission may upon request of the purchasing officer of any institution or agency relieve the purchasing officer from the obligation of this section.
(d) Any purchasing officer who violates this section shall be guilty of a misdemeanor and punished accordingly.