The certificate shall be taken in good faith from a person engaged in selling or leasing tangible personal property or taxable services who, at the time of purchase, intends to sell the property or services in the regular course of business or cannot then ascertain whether it will be so sold or not.
The certificate shall be substantially in the form prescribed in subsection (b). It shall in all cases be signed by the purchaser, bear his name and address and indicate the general character of the property or service sold by the purchaser in the regular course of his business. It shall also bear the number of the seller's permit held by the purchaser, but, if he is not required to hold a permit because he sells only property of a kind the sale of which is not taxable, e.g., food products for human consumption, or because he makes no sales in this state, he should make an appropriate notation to that effect on the certificate in lieu of his seller's permit number.
Under "General Description of products to be purchased from the seller" there may appear (1) Either an itemized list of the particular property/service(s) to be purchased or leased for resale or (2) A general description of the kind of property to be purchased for resale.
This certificate may be used for the purpose of a single purchase of commodities/services for resale; in such case (1) above applies, or it may be used as a blanket certificate for the purpose of a continuing line of purchases of commodities for resale in the regular course of business; in the latter case (2) above applies, and the certificate should be plainly marked "Blanket Certificate."
Conn. Agencies Regs. § 12-426-1