The NY Class B airspace is defined, officially, as seen in this document, which can be found in the VFR Class B Graphics in the FAA website. In this graphic (and in the corresponding shapefile, Class Airspace), the flight altitude limits can clearly be seen, for example 70/30 in the "outer ring", meaning, below 7000 FT and above 3000 FT.

However, in the specific SOP definitions for the NYARTCC, here, different altitude limits can clearly be seen, for example in the DEP 4L LAND 4L/R.

Why are these two limits incompatible? Which ones are technically "officially" valid?

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    $\begingroup$ The information from the FAA will the the official values. The SOP information is for simulation only, not real world use. $\endgroup$ – fooot Apr 10 '18 at 22:14
  • $\begingroup$ Thank you for your answer. Could you provide a link regarding to the aforementioned SOP information? Using the FAA provided Class B data (the corresponding shapefile from here (ais-faa.opendata.arcgis.com/) ), there is only information up to 7,000 feet. What about the airspace above that? Where can I find this information? $\endgroup$ – Vector Zita Apr 11 '18 at 9:49
  • $\begingroup$ I'm not sure where to find more info but you can post the FAA shape file data as an answer to your previous question, if you found what you were looking for. $\endgroup$ – fooot Apr 11 '18 at 14:28
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    $\begingroup$ It may not be obvious to someone reading this question casually but the NYARTCC site you linked to is run by virtual aviation enthusiasts for the VATSIM network. So I'm not sure what sort of answer you expect, because you're comparing two completely different things. As for the airspace above 7000', it's class E. $\endgroup$ – Pondlife Apr 11 '18 at 16:08
  • $\begingroup$ Indeed, I found out in the disclaimer at the bottom of the page. In fact, I may have not phrased my question very well. My confusion arose because the NY TRACON is divided into sectors (as I see in various software such as EuroScope), and I have found that these sectors have quite different flight levels. The various SID/STAR procedures around the major NY airports also make reference to much different altitudes than those in Class B. I better post a different, clearer question. When I clear up what is going on, I will return to provide an answer here. $\endgroup$ – Vector Zita Apr 11 '18 at 17:38

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