Va. Code Ann. § 3.2-4319

Every certificate relating to the analysis, grade, classification, quality, or condition of agricultural products, either raw or processed, that is issued: (i) under this article; (ii) in cooperation between federal and state authorities, agencies, or organizations pursuant to a federal statute and this article; (iii) under a similar act of the legislature of any other state, and every certified copy; and (iv) every certificate issued pursuant to a federal statute, and every certified copy, shall be received in any court of the Commonwealth as prima facie evidence of the truth of the statements contained in the certificate.