The director shall not enforce this article during the period that any marketing order or commission covering the same subject is in effect.

The director shall inspect deliveries of tomatoes for processing purposes.

If the director finds that the tomatoes which are being delivered conform with the standards prescribed by regulations, the director shall issue a certificate to that effect.

If the director finds that the tomatoes delivered do not conform with the standards prescribed by regulations, the director shall issue a notice of rejection.

The director is not required to perform inspection at any place where adequate inspection facilities are not provided.

The inspection certificate which is issued pursuant to this chapter is prima facie evidence of the percentage of defects according to the definition of such defects as defined by regulations. The presumption established by this section is a presumption affecting the burden of proof, but it does not apply in a criminal action.