Tamil Nadu Distillery Rules, 1981State Rules of Tamil Nadu · 1937
(a) All fermenters, spirit receivers and storage and issue vessels shall be gauged and tables cast for the assessment of capacity and volume. The gauging shall be cojointly done by the Distillery Officer and representative of the Licensee. No vessel shall be used as wash vat or spirit vat until it has been gauged and the gauging has been approved by the Joint Commissioner. Gauging may be done by wet or dry method. However, the „dip‟ of any vessel shall have to be measured by wet method only.
(b) Technical Excise Manual may be referred for detailed procedure of wet or dry gauging.
(c) Re-gauging of these vessels shall be done once in five years.