The scale house at any livestock auction market, receiving station, packing plant, or other establishment where livestock is regularly bought from producers shall be constructed so that all parties in interest may readily observe the weighing of livestock. The weighbeam or indicating apparatus shall be situated so that the weight indications thereon are clearly visible to public view. Provisions shall be made whereby the weighmaster from his normal weighing position has full view of the stock rack on the scale platform, the approaches thereto, and the livestock being weighed. Ready access from the unloading platform or chutes to the scale house must be provided to enable owners of livestock to get to the scale in time to see their livestock weighed. A sign clearly visible to public view shall be affixed on or adjacent to the scale house with the following phrase in letters at least three inches in height: “TO HELP AVOID ERRORS WATCH LIVESTOCK WEIGHED.”