I have moved from a background of all very large food manufacturer's to a very small company with only 15 employees + temps when needed. I was brought in to help get the facility ready for SQF audit. I am running into having to justify the reasons for various policies, one of which is hair nets. It has always been required everywhere i have ever worked and I am being asked where the rules come from. Currently, employees are being allowed to use the SAME hairnet throughout the day, whether they are in production or not. I am very aware of the reasons why we have to wear hairnets but finding proof and reasons why they are required is more difficult. I am telling them that hairnets must be changed each time you leave the processing area, use the restroom or go to breaks. My boss is wanting to know where this comes from. being that I have always been a part of a larger picture, I am unsure where the justification came from. I am having the same issue with ball caps. Does anyone have any references, FDA, HACCP or other that refer to these as being justified rules?