Hi, I have no idea whether there is a legal requirement. If there is I've never heard if it. Let me ask you something though - when you are at home, where do you inject? I'm assuming you don't have a designated first aid room? What about when you're out and about? Or when you were first diagnoses and in hospital? I honestly can't see any need for a special room for injections. Maybe others will disagree? As long as the needles you are using are clean then this should be sufficient. Ok, there are some environments where I wouldn't be comfortable injecting, but...