Code of Federal Regulations Title 26. Internal Revenue § 26.48.4071–2 Determination of weight

(b) Alternative method of determining weight of tires after December 31, 1983. A manufacturer who has received permission from the Commissioner may, subject to such conditions as the Commissioner may prescribe, determine total weight of tires manufactured and sold by the manufacturer on the basis of the average weight for each type, size, grade, and classification. The average weights must be established in accordance with the method approved by the Commissioner and apply for such periods as the Commissioner may prescribe. The Commissioner may terminate the approval granted any manufacturer. In the case of the termination of the approval granted any manufacturer, the termination becomes effective 10 days from the date of the receipt by the manufacturer of the notice of termination. A manufacturer may effect termination, as of a specified date, of the privilege to determine total weight in accordance with provisions of this paragraph by giving no less than 10 days written notice of such intention to the Commissioner. The termination of the approval given a manufacturer does not affect a manufacturer's tax liability for tires sold prior to the effective date of the notice of termination.