I am looking for a saftey standard for the use of saftey interlocks on CNC milling and turning machines. We have machinist on our shop floor that made keys for the interlocks. I want to provide some documentation as to why they cannot use these keys. I have done some research in osha and found in 1910.211-212 they talk a lot about this type of stuff but nothing directly stating that interlocks shall not be tampered with. I also looked into ANSI but do not have all the ANSI standards so I do not know what one I would need to purchase if it says something about interlocks in there on CNC machines. Any help or direction is greatly appreciated.
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