An appeal from a final decision of the Administrative Hearing Commission involving the construction of the revenue laws of the State of Missouri. This Court has exclusive jurisdiction. Mo. Const. Art. V, § 3. Affirmed.
Van Cleave Printing sold printed materials (bond certificates) to several purchasers, without collecting a sales tax or obtaining a certificate from the purchaser stating that the sales were exempt from the tax. All sales in question involved either a Missouri political subdivision or an Industrial Development Authority (IDA) operating pursuant to Chapter 349, RSMo 1986. After examining the transactions, the Director of Revenue assessed an additional sales tax to Van Cleave. Van Cleave appealed to the Administrative Hearing Commission.
The Commission set aside the tax assessed on sales to political subdivisions, holding that such entities are exempted by the Missouri Constitution from sales and use taxes, and therefore, exemption certificates are unnecessary. However, the Commission upheld the assessment of the tax on the sales to IDAs, as Van Cleave failed to obtain and keep exemption certificates as required by § 144-210, RSMo 1986. The Commission stated that the only acceptable evidence that the tax is not due from the vendor is a properly executed exemption certificate from the purchaser. Van Cleave appeals the decision of the Commission to the extent it upheld the tax imposed upon sales to IDAs. Affirmed.
The decision of the Administrative Hearing Commission is to be upheld when authorized by law and supported by competent and substantial evidence upon the whole record, unless the result is clearly contrary to the reasonable expectations of the General Assembly. Becker Electric Company, Inc. v. Director of Revenue, 749 S.W.2d 403, 405 (Mo. banc 1988); § 621.193, RSMo 1986.
The pertinent portion of the statute in question states:
The burden of proving that a sale of tangible personal property ... was not a sale at retail shall be upon the person who made the sale_ Exemption certificates signed by the purchaser or his agent shall be required to be kept by the seller as evidence for any exempt sale claimed_ Section 144-210, RSMo 1986.
Van Cleave contends this statute gives the seller two options. Either prove that the transaction was exempt from the sales tax or, in the alternative, obtain and keep signed exemption certificates from the purchaser. For support, Van Cleave points to several cases in which it contends that, in determining if a claim of exemption was proper, this Court has looked beyond the issue of whether the exemption certificates were kept. See, Overland Steel, Inc. v. *796Director of Revenue, 647 S.W.2d 535 (Mo. banc 1983); Becker Electric Co. v. Director of Revenue, 749 S.W.2d at 403; Floyd Charcoal Co., Inc. v. Director of Revenue, 599 S.W.2d 173 (Mo.1980); and Canteen Corp. v. Goldberg, 592 S.W.2d 754 (Mo. banc 1980). However, a reading of the cases cited indicates that the issue of whether an exemption certificate is the only acceptable evidence of an exempt sale was not raised by either party or the Court, therefore, those decisions are not disposi-tive of the issue.
To read the statute as Van Cleave suggests would ignore the plain meaning of the legislation. The Court has long held that the primary rule of statutory construction is to ascertain the intent of the legislature from the language used, to give effect to that intent if possible, and to consider the words used in their plain and ordinary meaning. Wolff Shoe Co. v. Director of Revenue, 762 S.W.2d 29, 31 (Mo. banc 1988). Further, where a statute’s language is clear and unambiguous, there is no room for construction. Metro Auto Auction v. Director of Revenue, 707 S.W.2d 397, 401 (Mo. banc 1986). In determining whether the language is clear and unambiguous, the standard is whether the statute’s terms are plain and clear to one of ordinary intelligence. Wolff Shoe Co., 762 S.W.2d at 31.
The mandatory language of the statute in question, “[exemption certificates signed by the purchaser or his agent shall be required to be kept by the seller as evidence for any exempt sales claimed,” [emphasis added], is plain and free of ambiguity. An exemption certificate is required as evidence for any claim for an exemption.
The decision of the Administrative Hearing Commission is affirmed.
ROBERTSON, HIGGINS, COVINGTON and HOLSTEIN, JJ., concur. BLACKMAR, C.J., dissents in separate opinion filed. RENDLEN, J., dissents and concurs in dissenting opinion of BLACKMAR, C.J.