limited space?Is there any aesthetic reason it has to be so close? How deep is the pipe? How deep will the hole for the pole be? If the pole falls over, will the base rip open the gas line?
Utility gas service to commercial bldg. 20A, 277V ckt to site light pole.What do you mean by gas pipe?
A utility gas service to a residence.
An underground pipeline serving the entire northeast.
A propane line run to a backyard fireplace.
What is the size of the pole base?
How deep is the pipe?
Most likely there are other codes and regulations other than the NEC which you need to consider.