(a) Dairy farms shall be inspected at least six times a year. Pasteurizing plants shall be inspected at least once every month. Plants of producer-distributors of raw milk shall be inspected at least once each month. Visits of inspectors shall be unannounced and at irregular intervals.

(b) An official scoring shall be made at least once each six-month period for dairy farms, and at least once each three-month period for processing plants and premises where raw milk is bottled. The market milk permit and one copy of the most recent official score shall be immediately available at the milk plant or dairy on request of the Dairy Inspector. An identical copy of the official score shall be on file with the records of the inspection agency for not less than one year.

(c) Pasteurizing equipment shall be tested initially on installation, and at least once each three months thereafter, and whenever any alteration or replacements are made which may effect the proper operation of the installation or device, except that the holding-time test may be made semiannually if no alterations or replacements have been made on the flow-promoting devices since the last test. The test shall include:

(d) A record of the tests shall be left with the plant manager and an identical copy shall be on file with the records of the inspection agency for not less than one year.

(e) Equipment manufactured and installed in conformity with the 3-A Sanitary Standards and Practices for Batch and High Temperature Short Time Pasteurizers complies with the term “approved and properly operated equipment” used in Section 34001 of the Food and Agricultural Code. Note, 3-A Sanitary Standards and Practices for Dairy Equipment are promulgated jointly by the Sanitary Standards Subcommittee and the Dairy Industry Committee (Milk Industry Foundation and Dairy and Ice Cream Machinery Supply Associations), the Committee on Sanitary Procedure of the IAMFES (International Association of Milk, Food, and Environmental Sanitarians, Inc.), and the Dairy Sanitation Section of the Public Health Service, Food and Drug Administration, Department of Health, Education, and Welfare. 3-A Sanitary Standards and Practices are available from IAMFES, Inc., P. O. Box 701, Ames, Iowa 50010.