I need help finding the Number/Citation for the FAA regulation/order that states commercial airliner separation should usually be at least 3 miles laterally, or 1,000 feet vertically.

I cannot find anything that clearly states the **"or" part.**

  • $\begingroup$ The title states the minimum safe distance, so the question clearly isn't, "How much is the minimum safe distance between two planes in flight?" $\endgroup$ Commented Jun 17, 2019 at 23:13
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    $\begingroup$ @RyanMortensen: Check the top answer, covers the FAA regs and orders as req'd here. If an answer is to be copied, then it is eligible for duplicate voting. $\endgroup$
    – user14897
    Commented Jun 17, 2019 at 23:14
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    $\begingroup$ The accepted answer on that question is very thorough, and gives exactly the references asked for in this question. When closed, this question is still searchable/findable, even though the answer will be one more click away. VTC as a dupe. $\endgroup$
    – Ralph J
    Commented Jun 17, 2019 at 23:25
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    $\begingroup$ @RyanMortensen: The other question can benefit from a better title. I tried to make it more findable by adding tags (before this thread started). FWIW, separation as explained there, is not fixed for all situations, which is another way of saying a "blanket" or won't be found. It can be found in 5−9−6 though for simultaneous approaches. If the question here is specific about simultaneous approaches, then sure it is not a duplicate. Once OP reviews the dupe/not-dupe, he/she can refine the scope depending on what they need. $\endgroup$
    – user14897
    Commented Jun 17, 2019 at 23:33
  • $\begingroup$ @ymb1 sounds good. I just worry sometimes that I'm seeing valuable specifics indefinitely swept under the rug due to similar topics having been asked in the past. I know this isn't the place for the discussion, so maybe I'll put a question on meta sometime. Thanks. $\endgroup$ Commented Jun 17, 2019 at 23:36


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